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Grundy Co
 Details for Grundy Co Hydrologic Outlook
Hydrologic Outlook HYDROLOGIC OUTLOOK - Grundy Co

NWS Central Great Lakes Regional Radar WU Central Satellite
Radar/Satellite images courtesy of NOAA/NWS and Weather Underground.
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Updated: @ 29-Sep-2026 4:05pm - next update at 4:10pm  
Summary / Temperature Wind Rain Outlook
Mainly cloudy, Dry Mainly cloudy, Dry
Currently: 77.6°F, Max: 82.5°F, Min: 51.8°F 77.6°F
Colder 3.2°F than last hour.

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Feels like: 79°F

24-hr difference
2°FWarmer 2.0°F than yesterday at this time.
  Today Yesterday
High: 82.5°F
2:58pm 		78.4°F
3:04pm
Low: 51.8°F
7:00am 		46.9°F
7:02am
Calm SSW
0
Gust:
 0 mph
0 Bft - Calm
Today: 7 mph 12:37pm
Gust Month: 11.0 mph September 15
Rain Today: 0 in
Rain Rate (/hr): 0 in
Rain Yesterday: 0 in
Storm Rain: 0 in
This Month: 4.449 in
Season Total: 40.18 in
8 rain days in September.
Tonight

Tonight: Mostly Clear
Mostly Clear
Humidity & Barometer Almanac Moon
Humidity: 49 % Increased 7.0% since last hour.
Dew Point: 56.9°F Increased 1.4°F since last hour.
Barometer: 29.9 inHg Falling 0.02 inHg/hr
Baro Trend: Falling slowly
Sunrise: 6:47am
Sunset: 6:38pm
Moonset: 10:15am
Moonrise: 7:29pm
Waning Gibbous
Waning Gibbous, Moon at 18 days in cycle
88%
Illuminated
UV Index Solar Radiation
   1.3     Low 
High: 5.1 @ 12:56pm
202 W/m2 (51 %)
High: 823 @  1:26pm
 NWS Weather Forecast  - Outlook: This Afternoon & Tonight
This
Afternoon
This Afternoon: Sunny
Sunny

Hi 87 °F		 NWS forecast: Sunny. High near 87, with temperatures falling to around 85 in the afternoon. North northwest wind around 9 mph, with gusts as high as 20 mph.
Davis VP+ forecast: Increasing clouds and cooler, precipitation possible and windy within 6 hrs.
 
Tonight

Tonight: Mostly Clear
Mostly Clear

Lo 57 °F		 NWS forecast: Mostly clear, with a low around 57. West wind 0 to 6 mph.