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 Details for Grundy County Extreme Heat Warning

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Extreme Heat Warning EXTREME HEAT WARNING - Grundy County

NWS North Mississippi Valley Regional Radar WU North Central Satellite
Radar/Satellite images courtesy of NOAA/NWS and Weather Underground.
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Updated: @ 30-Jun-2026 11:35am - next update at 6:00pm  
Summary / Temperature Wind Rain Outlook
Clear Clear
Currently: 89.4, Max: 89.4, Min: 75.4 89.4°F
Warmer 2.2°F than last hour.

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Feels like: 105°F

24-hr difference
1.4°FWarmer 1.4°F than yesterday at this time.
  Today Yesterday
High: 89.4°F
11:32am 		91.3°F
3:49pm
Low: 75.4°F
5:29am 		76.8°F
2:30am
Wind from SSW SSW
3.0
Gust:
 2.0 mph
2 Bft - Light Breeze
Today: 14.0 mph 9:21am
Gust Month: 37.0 mph June 10
Rain Today: 0.00 in
Rain Rate (/hr): 0.000 in
Rain Yesterday: 0.00 in
Storm Rain: 0.00 in
This Month: 11.68 in
Season Total: 27.24 in
15 rain days in June.
Tonight

Tonight: Clear
Clear
Humidity & Barometer Almanac Moon
Humidity: 70 % Decreased 4.0% since last hour.
Dew Point: 78.3°F Increased 0.5°F since last hour.
Barometer: 29.895 inHg  
Baro Trend: Steady
Sunrise: 5:23am
Sunset: 8:30pm
Moonset: 5:35am
Moonrise: 8:55pm
Full Moon
Full Moon, Moon at 15 days in cycle
99%
Illuminated
UV Index Solar Radiation
   5.4     Medium 
High: 5.4 @ 11:29am
817 W/m2 (86 %)
High: 819 @  11:29am
 NWS Weather Forecast  - Outlook: Today & Tonight
Today

Today: Mostly Sunny
Mostly Sunny

Hi 92 °F		 NWS forecast: Mostly sunny, with a high near 92. Heat index values as high as 106. Southwest wind around 15 mph, with gusts as high as 30 mph.
 
Tonight

Tonight: Clear
Clear

Lo 76 °F		 NWS forecast: 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.