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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: @ 30-Jun-2026 12:20pm - next update at 12:25pm  
Summary / Temperature Wind Rain Outlook
Sunny, Dry Sunny, Dry
Currently: 92.1°F, Max: 92.4°F, Min: 77.1°F 92.1°F
Warmer 1.6°F than last hour.

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Feels like: 107°F

24-hr difference
2.9°FWarmer 2.9°F than yesterday at this time.
  Today Yesterday
High: 92.4°F
12:14pm 		94.2°F
2:22pm
Low: 77.1°F
7:00am 		74.9°F
4:25am
Wind from SSW SSW
1.7
Gust:
 2 mph
1 Bft - Light Air
Today: 13 mph 8:33am
Gust Month: 21.0 mph June 10
Rain Today: 0 in
Rain Rate (/hr): 0 in
Rain Yesterday: 0 in
Storm Rain: 0 in
This Month: 9.947 in
Season Total: 24.598 in
14 rain days in June.
Tonight

Tonight: Mostly Clear
Mostly Clear
Humidity & Barometer Almanac Moon
Humidity: 66 % Decreased 2.0% since last hour.
Dew Point: 79.1°F Increased 0.5°F since last hour.
Barometer: 29.902 inHg Falling 0.01 inHg/hr
Baro Trend: Steady
Sunrise: 5:23am
Sunset: 8:29pm
Moonset: 5:35am
Moonrise: 8:54pm
Full Moon
Full Moon, Moon at 15 days in cycle
99%
Illuminated
UV Index Solar Radiation
   8.0     Very High 
High: 8.0 @ 12:19pm
926 W/m2 (92 %)
High: 926 @  12:19pm
 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 107. Southwest wind around 15 mph, with gusts as high as 30 mph.
Davis VP+ forecast: Increasing clouds with little temp change.
 
Tonight

Tonight: Mostly Clear
Mostly Clear

Lo 76 °F		 NWS forecast: Mostly clear, with a low around 76. Heat index values as high as 104. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.