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Grundy County
 Details for Grundy County Flood Advisory  +1 additional alert

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Flood Advisory FLOOD 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: @ 10-Aug-2026 8:50am - next update at 6:00pm  
Summary / Temperature Wind Rain Outlook
Clear Clear
Currently: 79.1, Max: 79.2, Min: 71.3 79.1°F
Warmer 3.3°F than last hour.

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Feels like: 83°F

24-hr difference
4.6°FWarmer 4.6°F than yesterday at this time.
  Today Yesterday
High: 79.2°F
12:00am 		88.3°F
3:00pm
Low: 71.3°F
1:57am 		63.8°F
4:23am
Wind from SW SW
1.5
Gust:
 0.0 mph
0 Bft - Light Air
Today: 26.5 mph 12:23am
Gust Month: 26.0 mph August 10
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.
Tonight

Tonight: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Humidity & Barometer Almanac Moon
Humidity: 87 % Decreased 3.0% since last hour.
Dew Point: 74.9°F Increased 2.3°F since last hour.
Barometer: 29.870 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 27 days in cycle
7%
Illuminated
UV Index Solar Radiation
   0.6     Low 
High: 0.6 @ 8:47am
202 W/m2 (42 %)
High: 250 @  8:48am
 NWS Weather Forecast  - Outlook: Today & Tonight
Today

Today: Slight Chance Rain Showers then Chance Showers And Thunderstorms
Slight Chance Rain Showers then Chance Showers And T-Storms

Hi 87 °F		 NWS forecast: A slight chance of rain showers before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 87. Heat index values as high as 98. Southwest wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
 
Tonight

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

Lo 70 °F		 NWS forecast: A chance of showers and thunderstorms. Partly cloudy, with a low around 70. Heat index values as high as 96. East southeast wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.