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Grundy Co
 Details for Grundy Co Hydrologic Outlook
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: @ 21-Jun-2026 12:05pm - next update at 12:10pm  
Summary / Temperature Wind Rain Outlook
Cloudy, Dry Cloudy, Dry
Currently: 64.4°F, Max: 67.5°F, Min: 61.7°F 64.4°F
Warmer 0.4°F than last hour.

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Feels like: 64°F

24-hr difference
-11.9°FColder 11.9°F than yesterday at this time.
  Today Yesterday
High: 67.5°F
9:39am 		79.7°F
3:47pm
Low: 61.7°F
7:00am 		59.4°F
4:13am
Wind from ESE ESE
0.1
Gust:
 0 mph
0 Bft - Calm
Today: 2.3 mph 7:05am
Gust Month: 21.0 mph June 10
Rain Today: 0.06 in
Rain Rate (/hr): 0.021 in
Rain Yesterday: 0 in
Storm Rain: 0.06 in
This Month: 8.114 in
Season Total: 22.765 in
13 rain days in June.
Tonight

Tonight: Showers And Thunderstorms
Showers And T-Storms
Humidity & Barometer Almanac Moon
Humidity: 87 % Increased 1.0% since last hour.
Dew Point: 60.4°F Increased 0.7°F since last hour.
Barometer: 29.871 inHg Falling 0.02 inHg/hr
Baro Trend: Falling slowly
Sunrise: 5:20am
Sunset: 8:29pm
Moonset: 12:24am
Moonrise: 12:49pm
Waxing Crescent
Waxing Crescent, Moon at 7 days in cycle
48%
Illuminated
UV Index Solar Radiation
   0.9     Low 
High: 1.1 @ 8:10am
100 W/m2 (10 %)
High: 185 @  8:16am
 NWS Weather Forecast  - Outlook: Today & Tonight
Today

Today: Rain Showers
Rain Showers

Hi 69 °F		 NWS forecast: Rain showers before 2pm, then showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy. High near 69, with temperatures falling to around 62 in the afternoon. East southeast wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Davis VP+ forecast: Increasing clouds with little temp change.
 
Tonight

Tonight: Showers And Thunderstorms
Showers And T-Storms

Lo 59 °F		 NWS forecast: Showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a low around 59. Northeast wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.