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

42°F

6°C

Humidity 96%
Wind Speed SW 13 G 18 mph
Barometer 29.31 in (992.4 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 20 Feb 12:56 am CST
Extended Forecast for

Nachusa IL

Wind Advisory February 20, 06:00am until February 20, 04:00pm
Click here for hazard details and duration
Wind Advisory

  • Overnight

    Overnight: Rain showers before 4am, then rain and snow showers. Low around 31. Breezy, with a south southeast wind 10 to 15 mph becoming west southwest 20 to 25 mph. Winds could gust as high as 40 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 31 °F

    Rain/Snow and
    Breezy

  • Friday

    Friday: Snow, mainly before 9am, then a chance of flurries after noon. High near 34. Breezy, with a west wind 20 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    High: 34 °F

    Breezy. Snow
    then Chance
    Flurries

  • Friday Night

    Friday Night: Partly cloudy, with a low around 22. Breezy, with a west northwest wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph.

    Low: 22 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 35. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 35 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 21. West northwest wind around 15 mph, with gusts as high as 25 mph.

    Low: 21 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 29. Blustery.

    High: 29 °F

    Mostly Cloudy
    and Blustery

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 16.

    Low: 16 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 30.

    High: 30 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 17.

    Low: 17 °F

    Partly Cloudy

Detailed Forecast

Overnight
Rain showers before 4am, then rain and snow showers. Low around 31. Breezy, with a south southeast wind 10 to 15 mph becoming west southwest 20 to 25 mph. Winds could gust as high as 40 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Friday
Snow, mainly before 9am, then a chance of flurries after noon. High near 34. Breezy, with a west wind 20 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Friday Night
Partly cloudy, with a low around 22. Breezy, with a west northwest wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph.
Saturday
Partly sunny, with a high near 35. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday Night
Mostly cloudy, with a low around 21. West northwest wind around 15 mph, with gusts as high as 25 mph.
Sunday
Mostly cloudy, with a high near 29. Blustery.
Sunday Night
Partly cloudy, with a low around 16.
Monday
Mostly sunny, with a high near 30.
Monday Night
Partly cloudy, with a low around 17.
Tuesday
Partly sunny, with a high near 43.
Tuesday Night
Mostly cloudy, with a low around 32.
Wednesday
Partly sunny, with a high near 48.
Wednesday Night
Mostly clear, with a low around 23.
Thursday
Mostly sunny, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Nachusa IL
 41.83°N 89.38°W
Last Update:
1:10 am CST Feb 20, 2026
Forecast Valid:
1am CST Feb 20, 2026-6pm CST Feb 26, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation