National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Sterling Rockfalls (KSQI)

Lat: 41.74°NLon: 89.67°WElev: 643ft.

Fair

91°F

33°C

Humidity 64%
Wind Speed Vrbl 3 mph
Barometer 29.88 in (1011.3 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index105°F (41°C)
Last update 3 Sep 5:56 pm CDT
Extended Forecast for

Deer Grove IL

Heat Advisory September 3, 06:47pm until September 4, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 3, 06:47pm until September 4, 07:00pm

    NOW until 7:00pm Fri

    Heat Advisory

  • Tonight

    Low: 74 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 95. Heat index values as high as 106. Southeast wind 5 to 10 mph becoming southwest in the morning.

    High: 95 °F

    Hot

  • Friday Night

    Friday Night: A chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly clear, with a low around 71. South wind around 5 mph becoming calm. Chance of precipitation is 30%.

    Low: 71 °F

    Mostly Clear
    then Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 90. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 90 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Labor Day

    Labor Day: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

Detailed Forecast

Tonight
Mostly clear, with a low around 74. South wind around 5 mph.
Friday
Sunny and hot, with a high near 95. Heat index values as high as 106. Southeast wind 5 to 10 mph becoming southwest in the morning.
Friday Night
A chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly clear, with a low around 71. South wind around 5 mph becoming calm. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 90. Calm wind becoming northeast around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 65.
Sunday
Mostly sunny, with a high near 84.
Sunday Night
Partly cloudy, with a low around 62.
Labor Day
Mostly sunny, with a high near 84.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
Mostly sunny, with a high near 90.
Tuesday Night
A 30 percent chance of showers. Partly cloudy, with a low around 72.
Wednesday
Mostly sunny, with a high near 90.
Wednesday Night
A 30 percent chance of showers. Partly cloudy, with a low around 68.
Thursday
Mostly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Deer Grove IL
 41.6°N 89.68°W (Elev. 643 ft)
Last Update:
5:41 pm CDT Sep 3, 2026
Forecast Valid:
6pm CDT Sep 3, 2026-6pm CDT Sep 10, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation