Iowa USA weather data
Iowa USA Weather Data, Plant Disease Risk and Degree-Day Models
IADOT Network - other tables for IA include: All Networks, CWOP/APRS, HADS, METAR, RAWS, see our homepage.
Interactive degree-day maps
Iowa USA base 32 degree-days to date
Degree-day & Phenology Model Calculator
 Also try the full-featured calculator/DD model
Select model: 
Thresholds: lower: °F   upper: °F (or celsius °C:)
  Calc. method:
Start (biofix) date:   End date:   
 Forecast type:   
Statewide Disease Alert Maps: tomato-potato Smith late blight, Tomcast DSV, fire blight,
Data table - to SORT click on headers:
# Location linked to
hourly weather,
plant disease models and
forecasts using
"Mypest Page"		  
County		 Re-
cent
data QA		 Fore-
cast
based
virt
data		 Nearby
station
based
virt
data
Station code,
links to
NWS recent
weather
Links to
NWS fore-
casts		  
Net-
work
Elev. (ft)		  
Lat./ Long.
(Dec. Deg.)		  
Max-min temperature data and degree-days
(click radio button to calc.)
10 yr
avgs
30 yr
avgs
nmme
fcast
cfs
fcast
1 Adair (I80) Cass
85
na
na		 na
na
RDAI4
map
digital
IADOT
1476
 41.49611
-94.72611
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
2 Ainsworth Washington C
96
na
na		 na
na
IA088
map
digital
IADOT
738
 41.29111
-91.53528
2026
2025
-
-
nmme
-
3 Akron Plymouth Cou
93
na
na		 na
na
IA079
map
digital
IADOT
1401
 42.80778
-96.37167
2026
2025
-
-
nmme
-
4 Algona (US18) Kossuth
86
na
na		 na
na
RALI4
map
digital
IADOT
1107
 43.08278
-94.39833
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
AVG AVG nmme cfs
5 Alton (IA10) Sioux
88
na
na		 na
na
RTNI4
map
digital
IADOT
1411
 42.99778
-96.08417
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
6 Altoona (I80US-65) Polk
81
na
na		 na
na
RTOI4
map
digital
IADOT
859
 41.65944
-93.52194
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
7 Ames (I35) Story
86
na
na		 na
na
RAMI4
map
digital
IADOT
1028
 42.03389
-93.57000
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
8 Ankeny (I35) Polk County
72
na
na		 na
na
RAKI4
map
digital
IADOT
865
 41.76167
-93.56944
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
9 Argyle Lee County
93
na
na		 na
na
IA080
map
digital
IADOT
522
 40.46472
-91.57056
2026
2025
-
-
nmme
-
10 Avoca (I80) Pottawattami
92
na
na		 na
na
RAVI4
map
digital
IADOT
1239
 41.49806
-95.29139
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
11 Bloomfield Davis County
100
na
na		 na
na
IA081
map
digital
IADOT
896
 40.73889
-92.50556
2026
2025
-
-
nmme
-
12 Burlington (US34) Des Moines
79
na
na		 na
na
RBUI4
map
digital
IADOT
716
 40.81278
-91.09917
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
13 Cantril Van Buren Co
15
na
na		 na
na
RCLI4
map
digital
IADOT
676
 40.65778
-92.06194
2026
2025
2024
-
-
nmme
-
14 Carroll (US30) Carroll Coun
84
na
na		 na
na
RCAI4
map
digital
IADOT
1276
 42.07833
-94.89722
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
15 Cedar Rapids (I380) Linn
94
na
na		 na
na
RCDI4
map
digital
IADOT
774
 41.97778
-91.67444
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
16 Cedar Rapids (US30) Linn
91
na
na		 na
na
RCII4
map
digital
IADOT
807
 41.92972
-91.68361
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
17 Cedar Rapids (US30) Linn
86
na
na		 na
na
RCRI4
map
digital
IADOT
761
 41.92583
-91.54972
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
18 Centerville (IA2) Appanoose
87
na
na		 na
na
RCNI4
map
digital
IADOT
969
 40.73944
-93.00250
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
19 Chariton River Appanoose Co
98
na
na		 na
na
IA096
map
digital
IADOT
854
 40.79056
-92.85778
2026
2025
-
-
nmme
-
20 Cleghorn Cherokee Cou
97
na
na		 na
na
IA092
map
digital
IADOT
1430
 42.80861
-95.72278
2026
2025
-
-
nmme
-
21 Colfax (I80) Jasper
89
na
na		 na
na
RCFI4
map
digital
IADOT
810
 41.68917
-93.26472
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
22 Council Bluffs (I80) Pottawattami
95
na
na		 na
na
RCBI4
map
digital
IADOT
880
 41.23250
-95.86611
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
AVG AVG nmme cfs
23 Council Bluffs DMS Pottawattami
98
na
na		 na
na
RCCI4
map
digital
IADOT
1020
 41.26028
-95.80306
2026
2025
2024
-
-
nmme cfs
24 Creston (US34) Union
98
na
na		 na
na
RCEI4
map
digital
IADOT
1275
 41.04972
-94.30778
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
25 Davenport (I80I-280) Rock Island
91
na
na		 na
na
RDVI4
map
digital
IADOT
677
 41.60222
-90.67750
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
26 De Soto (I80US-169) Dallas
85
na
na		 na
na
RDEI4
map
digital
IADOT
957
 41.54139
-94.01111
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
27 De Witt (US30US-61) Clinton
99
na
na		 na
na
RDWI4
map
digital
IADOT
789
 41.82611
-90.57028
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
28 Denison Crawford Cou
0
na
na		 na
na
IA060
map
digital
IADOT
1400
 41.91833
-95.34389
2026
2025
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
29 Denison Crawford Cou
84
na
na		 na
na
RDNI4
map
digital
IADOT
1385
 41.91556
-95.34389
2026
2025
2024
-
-
nmme cfs
30 Des Moines (I235) Polk
95
na
na		 na
na
RDMI4
map
digital
IADOT
822
 41.59556
-93.61139
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
31 Des Moines (I35) Polk
95
na
na		 na
na
RDSI4
map
digital
IADOT
736
 41.52750
-93.77222
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
32 Dubuque (US20) Dubuque
86
na
na		 na
na
RDBI4
map
digital
IADOT
820
 42.49028
-90.73083
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
33 E of Tama HW 30HW 21 Benton
86
na
na		 na
na
RTMI4
map
digital
IADOT
822
 41.96472
-92.29806
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
34 Early Sac County
85
na
na		 na
na
ERYI4
map
digital
IADOT
1355
 42.47222
-95.14889
2026
2025
2024
-
-
nmme cfs
35 Estherville Emmet County
0
na
na		 na
na
IA064
map
digital
IADOT
1283
 43.39917
-94.79722
2026
2025
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
36 Estherville Emmet County
95
na
na		 na
na
RETI4
map
digital
IADOT
1276
 43.39917
-94.79722
2026
2025
2024
-
-
nmme
-
37 Fort Dodge (US20) Webster
84
na
na		 na
na
RFDI4
map
digital
IADOT
939
 42.44611
-94.18333
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
38 Grimes Polk County
92
na
na		 na
na
RGAI4
map
digital
IADOT
856
 41.73944
-93.77556
2026
2025
2024
-
-
nmme cfs
39 Grinnell (I80) Poweshiek
88
na
na		 na
na
RGRI4
map
digital
IADOT
923
 41.69722
-92.72556
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
40 Grinnell Jasper Count
97
na
na		 na
na
IA082
map
digital
IADOT
863
 41.69500
-92.78028
2026
2025
-
-
nmme
-
41 Hanlontown (I35) Worth
93
na
na		 na
na
RHAI4
map
digital
IADOT
1094
 43.39194
-93.34972
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
42 Hawkeye Fayette Coun
89
na
na		 na
na
HKYI4
map
digital
IADOT
1076
 42.96472
-91.95333
2026
2025
2024
-
-
nmme cfs
43 Humboldt Humboldt Cou
0
na
na		 na
na
IA093
map
digital
IADOT
1106
 42.81306
-94.22833
2026
2025
-
-
nmme
-
44 I80 at I-380 Johnson Coun
92
na
na		 na
na
RTFI4
map
digital
IADOT
787
 41.69361
-91.64444
2026
2025
2024
-
-
nmme cfs
45 Ida Grove (HW 59) Ida
88
na
na		 na
na
RIGI4
map
digital
IADOT
1234
 42.35139
-95.47806
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
46 Iowa City (US218) Johnson
28
na
na		 na
na
RIAI4
map
digital
IADOT
834
 41.65722
-91.59861
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
47 Iowa City I80 Johnson Coun
22
na
na		 na
na
RIOI4
map
digital
IADOT
761
 41.68889
-91.58111
2026
2025
2024
-
Virtual nmme cfs
48 Jefferson (IA4) Greene
83
na
na		 na
na
RJFI4
map
digital
IADOT
1017
 42.05167
-94.37806
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
49 Leland Winnebago Co
88
na
na		 na
na
IA083
map
digital
IADOT
1253
 43.37139
-93.63778
2026
2025
-
-
nmme
-
50 Leon (I35)IA-2) Decatur
88
na
na		 na
na
RLEI4
map
digital
IADOT
1146
 40.73861
-93.84167
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
51 Manchester (US20) Delaware
88
na
na		 na
na
RMNI4
map
digital
IADOT
1014
 42.47083
-91.44722
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
52 Maquoketa US61IA-64 Jackson
89
na
na		 na
na
RMQI4
map
digital
IADOT
824
 42.06833
-90.68333
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
53 Marshalltown (US30) Marshall
72
na
na		 na
na
RMTI4
map
digital
IADOT
956
 42.00361
-92.96167
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
54 Mason City (I35) Cerro Gordo
94
na
na		 na
na
RMCI4
map
digital
IADOT
1236
 43.03778
-93.34167
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
55 Mason City US18 Cerro Gordo
89
na
na		 na
na
MSYI4
map
digital
IADOT
1096
 43.11139
-93.12278
2026
2025
2024
-
-
nmme cfs
56 Missouri Valley (I29) Harrison
99
na
na		 na
na
RMVI4
map
digital
IADOT
1016
 41.54944
-95.91722
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
57 Mount Pleasant US218 Henry
89
na
na		 na
na
RMPI4
map
digital
IADOT
436
 40.89556
-91.55528
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
58 Mt Ayr Ringgold Cou
93
na
na		 na
na
IA085
map
digital
IADOT
1165
 40.71194
-94.27194
2026
2025
-
-
nmme
-
59 NB Copper Creek Appanoose Co
86
na
na		 na
na
IA095
map
digital
IADOT
879
 40.75306
-92.86111
2026
2025
-
-
nmme
-
60 New Hampton (US18) Chickasaw
77
na
na		 na
na
RNHI4
map
digital
IADOT
1073
 43.06694
-92.45917
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
61 Olds Henry County
95
na
na		 na
na
IA089
map
digital
IADOT
722
 41.14222
-91.54056
2026
2025
-
-
nmme
-
62 Onawa (I29) Monona
0
na
na		 na
na
RONI4
map
digital
IADOT
996
 41.86528
-96.10306
2026
2025
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
63 Osceola (I35) Clarke
87
na
na		 na
na
ROSI4
map
digital
IADOT
1096
 41.02556
-93.79778
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
64 Ottumwa (US63) Wapello
92
na
na		 na
na
ROTI4
map
digital
IADOT
642
 41.01667
-92.42111
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
65 Pacific Junction Mills County
100
na
na		 na
na
IA090
map
digital
IADOT
951
 41.04472
-95.82389
2026
2025
-
-
nmme
-
66 Pella (IA163) Mahaska
0
na
na		 na
na
RPLI4
map
digital
IADOT
891
 41.39000
-92.87250
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
67 Plainfield (HW 218) Bremer Count
54
na
na		 na
na
RPFI4
map
digital
IADOT
965
 42.83306
-92.53694
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
68 Pleasantville Marion Count
98
na
na		 na
na
IA086
map
digital
IADOT
879
 41.35500
-93.26361
2026
2025
-
-
nmme
-
69 Prairie City Polk County
93
na
na		 na
na
IA091
map
digital
IADOT
833
 41.60194
-93.37083
2026
2025
-
-
nmme
-
70 Red Oak (US34US-71) Montgomery
88
na
na		 na
na
RROI4
map
digital
IADOT
954
 40.97972
-94.98361
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
71 Riverside Johnson Coun
99
na
na		 na
na
IA087
map
digital
IADOT
646
 41.48722
-91.55222
2026
2025
-
-
nmme
-
72 RLSI4 Harrison Cou
93
na
na		 na
na
RLSI4
map
digital
IADOT
1020
 41.80194
-96.02778
2026
2025
-
-
nmme
-
73 Rockwell City Calhoun Coun
0
na
na		 na
na
IA063
map
digital
IADOT
1266
 42.45000
-94.67000
2026
2025
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
74 Rockwell City Calhoun Coun
86
na
na		 na
na
RRWI4
map
digital
IADOT
1198
 42.45000
-94.67000
2026
2025
2024
-
-
nmme
-
75 Saratoga Howard Count
93
na
na		 na
na
SRGI4
map
digital
IADOT
1348
 43.37056
-92.47056
2026
2025
2024
-
-
nmme cfs
76 SB Copper Creek Appanoose Co
31
na
na		 na
na
IA094
map
digital
IADOT
879
 40.75306
-92.86167
2026
2025
-
-
nmme
-
77 Sibley (HW 60HW 9) Osceola
87
na
na		 na
na
RSYI4
map
digital
IADOT
1574
 43.43333
-95.71472
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
78 Sidney (I29IA-2) Fremont
92
na
na		 na
na
RSDI4
map
digital
IADOT
944
 40.68972
-95.78472
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
79 Sioux City (I29) Woodbury
89
na
na		 na
na
RSCI4
map
digital
IADOT
1196
 42.48306
-96.39028
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
80 Sioux City Woodbury Cou
95
na
na		 na
na
RSMI4
map
digital
IADOT
1135
 42.54944
-96.34778
2026
2025
2024
-
-
nmme cfs
81 Sloan Monona Count
53
na
na		 na
na
RSOI4
map
digital
IADOT
1053
 42.17111
-96.22944
2026
2025
2024
-
-
nmme cfs
82 Steamboat Rock (US20) Hardin
86
na
na		 na
na
RSBI4
map
digital
IADOT
1142
 42.45333
-93.05806
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
83 Storm Lk US71IA-3 Buena Vista
78
na
na		 na
na
RSLI4
map
digital
IADOT
1330
 42.74750
-95.15139
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
84 Tipton (I80) Cedar
98
na
na		 na
na
RTPI4
map
digital
IADOT
776
 41.64500
-91.12639
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
85 Urbana (I380) Buchanan
95
na
na		 na
na
RURI4
map
digital
IADOT
992
 42.31250
-91.97556
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
86 US30 at US-218 Benton Count
86
na
na		 na
na
RVHI4
map
digital
IADOT
922
 41.96389
-92.02778
2026
2025
-
-
nmme
-
87 US30 Mt Vernon Linn County
90
na
na		 na
na
RVNI4
map
digital
IADOT
820
 41.91139
-91.42250
2026
2025
2024
-
-
nmme cfs
88 Victor Iowa County
91
na
na		 na
na
VCTI4
map
digital
IADOT
863
 41.69583
-92.28000
2026
2025
-
-
nmme
-
89 W of Eddyville HW 137 Wapello
99
na
na		 na
na
RDYI4
map
digital
IADOT
799
 41.14639
-92.64333
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
90 Waterloo (US20) Black Hawk
92
na
na		 na
na
RWLI4
map
digital
IADOT
883
 42.45556
-92.30889
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
91 West of Bedford (HW 2) Taylor
89
na
na		 na
na
RBFI4
map
digital
IADOT
1100
 40.67722
-94.71472
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
92 Williams (I35) Wright
88
na
na		 na
na
RWII4
map
digital
IADOT
1150
 42.58722
-93.53139
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs
93 Williams Hamilton Cou
98
na
na		 na
na
IA084
map
digital
IADOT
1194
 42.40917
-93.57083
2026
2025
-
-
nmme
-
94 Williamsburg (I80) Iowa
87
na
na		 na
na
RWBI4
map
digital
IADOT
855
 41.68750
-92.00861
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
AVG AVG nmme cfs

[USPEST.ORG/WEA Home] [Intro] [US DD Mapmaker] [Main Table Index] [Links]
Oregon IPM Center at State University National Plant Diagnostics Network The PRISM Group at OSU Fox Weather, LLC University of Utah Mesowest Western Region Pest Management Center National Institute of Food and Agriculture
All data provided "as is" and users assume all risk in its use - see full disclaimer. All NWS derived data is not subject to copyright protection. This site hosted by the Oregon IPM Center at Oregon State University with support from USDA APHIS, various USDA NIFA grants, and USDA Western Region IPM Center. Climate map data provided by OSU PRISM Group, realtime public weather data provided by U. Utah Mesowest and various other networks.
This site on-line since April 5, 1996; last update Dec. 31, 2025
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