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Grundy County
 Details for Grundy County Severe Thunderstorm Watch  +1 additional alert

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Severe Thunderstorm Watch SEVERE THUNDERSTORM WATCH - Grundy County
Flood Watch FLOOD WATCH - 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: @ 09-Aug-2026 10:55pm - next update at 6:00pm  
Summary / Temperature Wind Rain Outlook
Clear Clear
Currently: 80.6, Max: 88.3, Min: 63.8 80.6°F
Colder 0.8°F than last hour.

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Feels like: 86°F

24-hr difference
13.9°FWarmer 13.9°F than yesterday at this time.
  Today Yesterday
High: 88.3°F
3:00pm 		85.2°F
3:54pm
Low: 63.8°F
4:23am 		65.9°F
11:48pm
Wind from SSW SSW
1.6
Gust:
 2.0 mph
1 Bft - Light Air
Today: 14.0 mph 1:02pm
Gust Month: 19.0 mph August 1
Rain Today: 0.00 in
Rain Rate (/hr): 0.000 in
Rain Yesterday: 0.00 in
Storm Rain: 0.00 in
This Month: 4.64 in
Season Total: 35.00 in
2 rain days in August.
Monday

Monday: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Humidity & Barometer Almanac Moon
Humidity: 85 % Increased 2.0% since last hour.
Dew Point: 75.7°F Decreased 0.1°F since last hour.
Barometer: 29.857 inHg Rising 0.01 inHg/hr
Baro Trend: Steady
Sunrise: 5:57am
Sunset: 8:00pm
Moonrise: 3:02am
Moonset: 6:47pm
Waning Crescent
Waning Crescent, Moon at 26 days in cycle
9%
Illuminated
UV Index Solar Radiation
   0.0    None
High: 4.9 @ 1:32pm
0 W/m2 (0 %)
High: 986 @  2:42pm
 NWS Weather Forecast  - Outlook: Tonight & Monday
Tonight

Tonight: Showers And Thunderstorms
Showers And T-Storms

Lo 72 °F		 NWS forecast: Showers and thunderstorms. Some of the storms could be severe and produce heavy rain. Mostly cloudy, with a low around 72. South southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.
 
Monday

Monday: Chance Showers And Thunderstorms
Chance Showers And T-Storms

Hi 87 °F		 NWS forecast: A chance of showers and thunderstorms. Partly sunny, with a high near 87. Heat index values as high as 97. South southwest wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 30%. New rainfall amounts between a half and three quarters of an inch possible.