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Grundy County
 Details for Grundy County Hydrologic Outlook

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Hydrologic Outlook HYDROLOGIC OUTLOOK - 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: @ 30-Sep-2026 8:05pm - next update at 6:00pm  
Summary / Temperature Wind Rain Outlook
Overcast Overcast
Currently: 65.0, Max: 68.0, Min: 60.2 65.0°F
Warmer 0.8°F than last hour.

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Feels like: 65°F

24-hr difference
3°FWarmer 3.0°F than yesterday at this time.
  Today Yesterday
High: 68.0°F
12:33am 		82.7°F
2:56pm
Low: 60.2°F
7:17am 		49.3°F
6:51am
Wind from SSW SSW
1.3
Gust:
 1.0 mph
0 Bft - Light Air
Today: 13.0 mph 4:13pm
Gust Month: 19.0 mph September 20
Rain Today: 0.99 in
Rain Rate (/hr): 0.000 in
Rain Yesterday: 0.00 in
Storm Rain: 0.99 in
This Month: 4.36 in
Season Total: 43.94 in
9 rain days in September.
Thursday

Thursday: Rain Showers
Rain Showers
Humidity & Barometer Almanac Moon
Humidity: 91 % Decreased 3.0% since last hour.
Dew Point: 62.3°F Decreased 0.2°F since last hour.
Barometer: 29.844 inHg  
Baro Trend: Steady
Sunrise: 6:50am
Sunset: 6:34pm
Moonset: 12:42pm
Moonrise: 8:46pm
Waning Gibbous
Waning Gibbous, Moon at 19 days in cycle
77%
Illuminated
UV Index Solar Radiation
   0.0    None
High: 0.9 @ 1:23pm
0 W/m2 (0 %)
High: 153 @  1:24pm
 NWS Weather Forecast  - Outlook: Tonight & Thursday
Tonight

Tonight: Rain Showers
Rain Showers

Lo 66 °F		 NWS forecast: Rain showers. Cloudy, with a low around 66. South southeast wind 0 to 5 mph, with gusts as high as 15 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
 
Thursday

Thursday: Rain Showers
Rain Showers

Hi 77 °F		 NWS forecast: Rain showers before 4pm, then showers and thunderstorms. Mostly cloudy. High near 77, with temperatures falling to around 71 in the afternoon. Southwest wind 5 to 10 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.