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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
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: @ 01-Aug-2026 2:50pm - next update at 6:00pm  
Summary / Temperature Wind Rain Outlook
Clear Clear
Currently: 69.6, Max: 70.1, Min: 66.5 69.6°F
Colder 0.4°F than last hour.

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Feels like: 65°F

24-hr difference
-4.5°FColder 4.5°F than yesterday at this time.
  Today Yesterday
High: 70.1°F
1:43pm 		77.1°F
10:21am
Low: 66.5°F
9:38am 		64.2°F
4:49am
Wind from NNE NNE
5.2
Gust:
 7.0 mph
2 Bft - Light Breeze
Today: 17.3 mph 2:46pm
Gust Month: 17.0 mph August 1
Rain Today: 4.21 in
Rain Rate (/hr): 0.000 in
Rain Yesterday: 0.03 in
Storm Rain: 4.22 in
This Month: 4.21 in
Season Total: 34.57 in
1 rain day in August.
Tonight

Tonight: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Humidity & Barometer Almanac Moon
Humidity: 92 % Increased 1.0% since last hour.
Dew Point: 67.2°F Decreased 0.1°F since last hour.
Barometer: 29.665 inHg  
Baro Trend: Steady
Sunrise: 5:48am
Sunset: 8:11pm
Moonset: 8:49am
Moonrise: 9:23pm
Waning Gibbous
Waning Gibbous, Moon at 17 days in cycle
90%
Illuminated
UV Index Solar Radiation
   1.3     Low 
High: 1.3 @ 2:42pm
236 W/m2 (27 %)
High: 236 @  2:49pm
 NWS Weather Forecast  - Outlook: This Afternoon & Tonight
This
Afternoon
This Afternoon: Showers And Thunderstorms Likely
Showers And T-Storms Likely

Hi 71 °F		 NWS forecast: Showers and thunderstorms likely. Mostly cloudy, with a high near 71. Northeast wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
 
Tonight

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

Lo 67 °F		 NWS forecast: A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms between 8pm and 10pm, then a slight chance of showers and thunderstorms between 10pm and 2am. Mostly cloudy, with a low around 67. North northeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.