Illinois USA weather data
Illinois USA Weather Data, Plant Disease Risk and Degree-Day Models
HADS Network - other tables for IL include: All Networks, CWOP/APRS, METAR, RAWS, see our homepage.
Interactive degree-day maps
Illinois 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, soybean rust
Disease Alert Movies: fireblight: 2010 2011 2012 2013
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 DEVILS KITCHEN Lk @ MA Williamson C
31
na
na
na
na
DKLI2
map
digital
HADS
495
 37.64278
-89.10250
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
AVG AVG
-
-
2 ELMHURST QUARRY AT ELM Cook County
90
na
na
na
na
EMQI2
map
digital
HADS
672
 41.89889
-87.96389
2024
2023
2022
2021
-
-
nmme
-
3 FONDULAC Cr @ E PEORIA Peoria Count
92
na
na
na
na
FDCI2
map
digital
HADS
528
 40.67694
-89.53083
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
AVG AVG
-
-
4 ILL RVR AT STARVED ROC La Salle
48
na
na
na
na
SRDI2
map
digital
HADS
460
 41.33306
-88.85000
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
5 ILLINOIS RVR AT BRANDO Cook
49
na
na
na
na
JOLI2
map
digital
HADS
543
 41.50417
-88.10806
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
6 ILLINOIS RVR AT LOCK Grundy
48
na
na
na
na
CDII2
map
digital
HADS
505
 41.39806
-88.27917
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
7 ILLINOIS Rvr AT LOCKPt Cook
49
na
na
na
na
LOKI2
map
digital
HADS
590
 41.56944
-88.07806
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
8 ILLINOIS Rvr AT NEW LA Cass County
35
na
na
na
na
NLGI2
map
digital
HADS
436
 39.94028
-90.53417
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
AVG AVG nmme
-
9 ILLINOIS Rvr AT PEORIA Peoria Count
49
na
na
na
na
PRAI2
map
digital
HADS
442
 40.63167
-89.62500
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
AVG AVG
-
-
10 ILLINOIS Rvr AT Val Ct Pike
37
na
na
na
na
VALI2
map
digital
HADS
417
 39.70917
-90.64639
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
11 ILLINOIS Rvr LOCK + DA Cook County
49
na
na
na
na
OBII2
map
digital
HADS
593
 41.65000
-87.56083
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
AVG AVG nmme
-
12 ILLINOIS Rvr MET Stn A La Salle Cou
46
na
na
na
na
MMPI2
map
digital
HADS
482
 41.32583
-88.71444
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
AVG AVG nmme
-
13 MISS RVR AT LOCK + DAM Des Moines
49
na
na
na
na
GLDI2
map
digital
HADS
538
 40.88306
-91.03306
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
14 MISS RVR AT LOCK + DAM Rock Island
49
na
na
na
na
ILNI2
map
digital
HADS
550
 41.43056
-91.02194
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
15 MISS RVR AT LOCK + DAM Louisa
49
na
na
na
na
NBOI2
map
digital
HADS
548
 41.19417
-91.05806
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
16 MISS RVR AT LOCK + DAM Adams
43
na
na
na
na
QLDI2
map
digital
HADS
483
 39.90417
-91.43667
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
17 MISSISSIPPI Rvr AT ALT Madison Coun
49
na
na
na
na
ALOI2
map
digital
HADS
416
 38.88639
-90.18278
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
AVG AVG
-
-
18 MISSISSIPPI Rvr AT LOC Clinton Coun
47
na
na
na
na
FLTI2
map
digital
HADS
580
 41.89417
-90.15667
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
AVG AVG nmme
-
19 MISSISSIPPI RVR LOCK Rock Island
48
na
na
na
na
RCKI2
map
digital
HADS
542
 41.51667
-90.56333
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-
20 MISSISSIPPI Rvr MEL PR Madison Coun
49
na
na
na
na
ALNI2
map
digital
HADS
403
 38.86139
-90.13750
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
AVG AVG
-
-
21 SALINE BRANCH @ URBANA Champaign Co
49
na
na
na
na
SBUI2
map
digital
HADS
695
 40.12889
-88.15139
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
AVG AVG nmme
-
22 WAUKEGAN HARBOR Lake
47
na
na
na
na
WHRI2
map
digital
HADS
630
 42.35083
-87.80806
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
AVG AVG nmme
-

[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 Jan. 3, 2024
Contact Len Coop, OSU IPPC and Horticulture Dept. at coopl@science.oregonstate.edu or if you have any questions about this information.