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Grundy Co
 Details for Grundy Co Extreme Heat Warning
Extreme Heat Warning EXTREME HEAT WARNING - 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: @ 02-Jul-2026 12:25pm - next update at 12:30pm  
Summary / Temperature Wind Rain Outlook
Mainly cloudy, Dry Mainly cloudy, Dry
Currently: 91.4°F, Max: 92.7°F, Min: 77.7°F 91.4°F
Warmer 0.8°F than last hour.

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Feels like: 102°F

24-hr difference
-2.5°FColder 2.5°F than yesterday at this time.
  Today Yesterday
High: 92.7°F
12:18pm 		95.5°F
1:48pm
Low: 77.7°F
7:00am 		75.6°F
5:48am
Wind from NW NW
0.3
Gust:
 0 mph
0 Bft - Calm
Today: 8.1 mph 10:25am
Gust Month: 14.0 mph July 1
Rain Today: 0 in
Rain Rate (/hr): 0 in
Rain Yesterday: 0 in
Storm Rain: 0 in
This Month: 0 in
Season Total: 24.598 in
0 day since last rain.
Tonight

Tonight: Partly Cloudy then Chance Showers And Thunderstorms
Partly Cloudy then Chance Showers And T-Storms
Humidity & Barometer Almanac Moon
Humidity: 64 % Decreased 3.0% since last hour.
Dew Point: 77.5°F Decreased 0.3°F since last hour.
Barometer: 30.027 inHg Rising 0.01 inHg/hr
Baro Trend: Steady
Sunrise: 5:24am
Sunset: 8:29pm
Moonset: 7:42am
Moonrise: 10:05pm
Waning Gibbous
Waning Gibbous, Moon at 17 days in cycle
93%
Illuminated
UV Index Solar Radiation
   8.3     Very High 
High: 8.3 @ 12:24pm
255 W/m2 (26 %)
High: 976 @  12:14pm
 NWS Weather Forecast  - Outlook: Today & Tonight
Today

Today: Sunny
Sunny

Hi 94 °F		 NWS forecast: Sunny. High near 94, with temperatures falling to around 92 in the afternoon. Heat index values as high as 105. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Davis VP+ forecast: Increasing clouds with little temp change, precipitation possible within 24 to 48 hrs.
 
Tonight

Tonight: Partly Cloudy then Chance Showers And Thunderstorms
Partly Cloudy then Chance Showers And T-Storms

Lo 76 °F		 NWS forecast: A chance of showers and thunderstorms after midnight. Partly cloudy, with a low around 76. Heat index values as high as 102. Southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.