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Hazardous Weather Conditions

Current conditions at

Sterling Rockfalls (KSQI)

Lat: 41.74°NLon: 89.67°WElev: 643ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Nachusa IL

Wind Advisory until February 18, 06:00pm
Red Flag Warning until February 18, 08:00pm
Click here for hazard details and duration
Wind Advisory
Red Flag Warning
  •  
    Wind Advisory until February 18, 06:00pm
    Red Flag Warning until February 18, 08:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Today

    High: 64 °F

    Sunny and
    Windy

  • Tonight

    Tonight: Increasing clouds, with a low around 38. West southwest wind 5 to 15 mph becoming east after midnight. Winds could gust as high as 25 mph.

    Low: 38 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Rain likely, with thunderstorms also possible after 3pm. Partly sunny, with a high near 62. Southeast wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 62 °F

    Slight Chance
    Rain then
    Rain Likely

  • Thursday Night

    Thursday Night: Rain likely before 3am, then snow likely. Some thunder is also possible. Mostly cloudy, with a low around 31. Breezy, with a south southeast wind 10 to 20 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 31 °F

    Rain Likely
    then
    Rain/Snow
    Likely and
    Breezy

  • Friday

    Friday: A slight chance of snow, mixing with rain after 9am, then gradually ending. Mostly cloudy, with a high near 39. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    High: 39 °F

    Breezy.
    Slight Chance
    Rain/Snow
    then Partly
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 21.

    Low: 21 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of snow after noon. Partly sunny, with a high near 35.

    High: 35 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 20.

    Low: 20 °F

    Mostly Cloudy

Detailed Forecast

Today
Sunny, with a high near 64. Windy, with a west southwest wind 20 to 30 mph, with gusts as high as 45 mph.
Tonight
Increasing clouds, with a low around 38. West southwest wind 5 to 15 mph becoming east after midnight. Winds could gust as high as 25 mph.
Thursday
Rain likely, with thunderstorms also possible after 3pm. Partly sunny, with a high near 62. Southeast wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Rain likely before 3am, then snow likely. Some thunder is also possible. Mostly cloudy, with a low around 31. Breezy, with a south southeast wind 10 to 20 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Friday
A slight chance of snow, mixing with rain after 9am, then gradually ending. Mostly cloudy, with a high near 39. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 21.
Saturday
A 20 percent chance of snow after noon. Partly sunny, with a high near 35.
Saturday Night
Mostly cloudy, with a low around 20.
Sunday
Partly sunny, with a high near 32.
Sunday Night
Mostly clear, with a low around 15.
Monday
Sunny, with a high near 32.
Monday Night
Mostly clear, with a low around 16.
Tuesday
Partly sunny, with a high near 39.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Nachusa IL
 41.83°N 89.38°W
Last Update:
9:01 am CST Feb 18, 2026
Forecast Valid:
11am CST Feb 18, 2026-6pm CST Feb 24, 2026
 
Forecast Discussion
 
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Additional Resources

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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