Hydrologic Outlook HYDROLOGIC OUTLOOK - Grundy Co

NWS Central Great Lakes Regional Radar WU Central Satellite
Radar/Satellite images courtesy of NOAA/NWS and Weather Underground.
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Updated: @ 30-Sep-2026 2:30am - next update at 2:35am  
Summary / Temperature Wind Rain Outlook
Night time, Dry Night time, Dry
Currently: 64.7°F, Max: 82.5°F, Min: 51.8°F 64.7°F
Colder 0.7°F than last hour.

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Feels like: 65°F

24-hr difference
10°FWarmer 10.0°F than yesterday at this time.
  Today Yesterday
High: 82.5°F
2:58pm
78.4°F
3:04pm
Low: 51.8°F
7:00am
46.9°F
7:02am
 Calm SSW
0
Gust:
0 mph
0 Bft - Calm
Today: 8.1 mph 5:02pm
Gust Month: 11.0 mph September 15
Rain Today: 0 in
Rain Rate (/hr): 0 in
Rain Yesterday: 0 in
Storm Rain: 0 in
This Month: 4.449 in
Season Total: 40.18 in
8 rain days in September.
Wednesday

Wednesday: Sunny
Sunny
Humidity & Barometer Almanac Moon
Humidity: 70 % Increased 4.0% since last hour.
Dew Point: 54.7°F Increased 0.9°F since last hour.
Barometer: 29.873 inHg Falling 0.01  inHg/hr
Baro Trend: Steady
Sunrise: 6:48am
Sunset: 6:36pm
Moonset: 11:30am
Moonrise: 8:03pm
Waning Gibbous
Waning Gibbous, Moon at 18 days in cycle
84%
Illuminated
UV Index Solar Radiation
   0.0    None
High: 5.1 @ 12:56pm
0 W/m2 (0 %)
High: 823 @  1:26pm
 NWS Weather Forecast  - Outlook: Tonight & Wednesday
Tonight

Tonight: Mostly Clear
Mostly Clear

Lo 57 °F
NWS forecast: Mostly clear, with a low around 57. Southwest wind around 1 mph.
Davis VP+ forecast: Increasing clouds with little temp change.
 
Wednesday

Wednesday: Sunny
Sunny

Hi 90 °F
NWS forecast: Sunny. High near 90, with temperatures falling to around 87 in the afternoon. Northeast wind 0 to 6 mph.