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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: @ 31-Jul-2026 2:40pm - next update at 6:00pm  
Summary / Temperature Wind Rain Outlook
Clear Clear
Currently: 74.2, Max: 77.1, Min: 64.2 74.2°F
Warmer 0.9°F than last hour.

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Feels like: 74°F

24-hr difference
-11.8°FColder 11.8°F than yesterday at this time.
  Today Yesterday
High: 77.1°F
10:21am 		88.0°F
3:38pm
Low: 64.2°F
4:49am 		57.7°F
4:53am
Wind from SSE SSE
1.5
Gust:
 1.0 mph
1 Bft - Light Air
Today: 8.1 mph 9:43am
Gust Month: 26.0 mph July 3
Rain Today: 0.01 in
Rain Rate (/hr): 0.000 in
Rain Yesterday: 0.00 in
Storm Rain: 0.00 in
This Month: 3.10 in
Season Total: 30.34 in
8 rain days in July.
Tonight

Tonight: Showers And Thunderstorms
Showers And T-Storms
Humidity & Barometer Almanac Moon
Humidity: 80 % Decreased 3.0% since last hour.
Dew Point: 67.6°F Decreased 0.3°F since last hour.
Barometer: 29.855 inHg Falling 0.02 inHg/hr
Baro Trend: Falling slowly
Sunrise: 5:47am
Sunset: 8:12pm
Moonset: 7:44am
Moonrise: 9:01pm
Waning Gibbous
Waning Gibbous, Moon at 16 days in cycle
95%
Illuminated
UV Index Solar Radiation
   0.7     Low 
High: 1.6 @ 10:09am
118 W/m2 (13 %)
High: 299 @  10:10am
 NWS Weather Forecast  - Outlook: This Afternoon & Tonight
This
Afternoon
This Afternoon: Showers And Thunderstorms
Showers And T-Storms

Hi 77 °F		 NWS forecast: Rain showers likely before 3pm, then showers and thunderstorms. Cloudy. High near 77, with temperatures falling to around 72 in the afternoon. South southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
 
Tonight

Tonight: Showers And Thunderstorms
Showers And T-Storms

Lo 67 °F		 NWS forecast: Showers and thunderstorms. Cloudy, with a low around 67. Southeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.