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Grundy County
 Details for Grundy County Heat Advisory

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Heat Advisory HEAT ADVISORY - 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: @ 29-Jun-2026 1:20pm - next update at 6:00pm  
Summary / Temperature Wind Rain Outlook
Clear Clear
Currently: 89.1, Max: 89.5, Min: 76.8 89.1°F
Warmer 1.1°F than last hour.

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Feels like: 105°F

24-hr difference
5.9°FWarmer 5.9°F than yesterday at this time.
  Today Yesterday
High: 89.5°F
1:14pm 		85.2°F
4:14pm
Low: 76.8°F
2:30am 		63.9°F
5:01am
Wind from SW SW
0.9
Gust:
 2.0 mph
1 Bft - Calm
Today: 13.0 mph 10:11am
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: Partly Cloudy
Partly Cloudy
Humidity & Barometer Almanac Moon
Humidity: 72 % Decreased 3.0% since last hour.
Dew Point: 78.9°F Decreased 0.2°F since last hour.
Barometer: 29.863 inHg Falling 0.01 inHg/hr
Baro Trend: Steady
Sunrise: 5:22am
Sunset: 8:30pm
Moonset: 4:36am
Moonrise: 8:08pm
Full Moon
Full Moon, Moon at 14 days in cycle
100%
Illuminated
UV Index Solar Radiation
   6.6     High 
High: 6.9 @ 11:53am
348 W/m2 (35 %)
High: 1146 @  11:53am
 NWS Weather Forecast  - Outlook: This Afternoon & Tonight
This
Afternoon
This Afternoon: Mostly Sunny
Mostly Sunny

Hi 91 °F		 NWS forecast: Mostly sunny, with a high near 91. Heat index values as high as 105. South southwest wind around 15 mph, with gusts as high as 25 mph.
 
Tonight

Tonight: Partly Cloudy
Partly Cloudy

Lo 77 °F		 NWS forecast: Partly cloudy, with a low around 77. Heat index values as high as 103. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.