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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: @ 28-Jun-2026 1:35pm - next update at 6:00pm  
Summary / Temperature Wind Rain Outlook
Clear Clear
Currently: 82.8, Max: 83.6, Min: 63.9 82.8°F
Colder 0.1°F than last hour.

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Feels like: 90°F

24-hr difference
4.6°FWarmer 4.6°F than yesterday at this time.
  Today Yesterday
High: 83.6°F
12:48pm 		78.9°F
1:20pm
Low: 63.9°F
5:01am 		64.0°F
1:00am
Calm S
0.0
Gust:
 0.0 mph
0 Bft - Calm
Today: 7.0 mph 12:26pm
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: Slight Chance Rain Showers then Partly Cloudy
Slight Chance Rain Showers then Partly Cloudy
Humidity & Barometer Almanac Moon
Humidity: 76 %  
Dew Point: 74.5°F  
Barometer: 29.874 inHg Rising 0.01 inHg/hr
Baro Trend: Steady
Sunrise: 5:22am
Sunset: 8:30pm
Moonset: 3:45am
Moonrise: 7:14pm
Waxing Gibbous
Waxing Gibbous, Moon at 13 days in cycle
98%
Illuminated
UV Index Solar Radiation
   4.7     Medium 
High: 6.5 @ 12:40pm
483 W/m2 (49 %)
High: 1034 @  12:24pm
 NWS Weather Forecast  - Outlook: This Afternoon & Tonight
This
Afternoon
This Afternoon: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms

Hi 84 °F		 NWS forecast: A slight chance of showers and thunderstorms between 4pm and 5pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 84. Southeast wind 10 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.
 
Tonight

Tonight: Slight Chance Rain Showers then Partly Cloudy
Slight Chance Rain Showers then Partly Cloudy

Lo 76 °F		 NWS forecast: A slight chance of rain showers before 7pm. Partly cloudy, with a low around 76. South southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.