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Grundy Co
 Details for Grundy Co Air Quality Alert  +3 additional alerts
Air Quality Alert AIR QUALITY ALERT - 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: @ 17-Jul-2026 3:05pm - next update at 3:10pm  
Summary / Temperature Wind Rain Outlook
Mainly cloudy, Dry Mainly cloudy, Dry
Currently: 87.8°F, Max: 93.4°F, Min: 73.4°F 87.8°F
Colder 0.1°F than last hour.

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Feels like: 85°F

24-hr difference
-5.5°FColder 5.5°F than yesterday at this time.
  Today Yesterday
High: 93.4°F
1:20pm 		94.9°F
3:12pm
Low: 73.4°F
7:01am 		70.2°F
5:07am
Calm NE
0
Gust:
 0 mph
0 Bft - Calm
Today: 11.5 mph 1:25pm
Gust Month: 15.0 mph July 3
Rain Today: 0 in
Rain Rate (/hr): 0 in
Rain Yesterday: 0.804 in
Storm Rain: 0.82 in
This Month: 3.048 in
Season Total: 27.646 in
5 rain days in July.
Tonight

Tonight: Scattered Showers And Thunderstorms then Partly Cloudy
Scattered Showers And T-Storms then Partly Cloudy
Humidity & Barometer Almanac Moon
Humidity: 3 % Decreased 17.0% since last hour.
Dew Point: -2.6°F Decreased 44.4°F since last hour.
Barometer: 29.947 inHg Falling 0.01 inHg/hr
Baro Trend: Steady
Sunrise: 5:34am
Sunset: 8:23pm
Moonrise: 9:22am
Moonset: 10:00pm
Waxing Crescent
Waxing Crescent, Moon at 3 days in cycle
16%
Illuminated
UV Index Solar Radiation
   6.1     High 
High: 8.4 @ 1:31pm
900 W/m2 (100 %)
High: 1056 @  1:39pm
 NWS Weather Forecast  - Outlook: This Afternoon & Tonight
This
Afternoon
This Afternoon: Chance Showers And Thunderstorms
Chance Showers And T-Storms

Hi 89 °F		 NWS forecast: A chance of showers and thunderstorms. Partly sunny, with a high near 89. Heat index values as high as 99. West southwest wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
Davis VP+ forecast: Increasing clouds with little temp change.
 
Tonight

Tonight: Scattered Showers And Thunderstorms then Partly Cloudy
Scattered Showers And T-Storms then Partly Cloudy

Lo 73 °F		 NWS forecast: Scattered showers and thunderstorms before 9pm. Partly cloudy, with a low around 73. Heat index values as high as 96. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.