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Hazardous Weather Conditions

Current conditions at

Sterling Rockfalls (KSQI)

Lat: 41.74°NLon: 89.67°WElev: 643ft.

Fair

55°F

13°C

Humidity 96%
Wind Speed E 5 mph
Barometer 29.88 in (1011.8 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Wind Chill54°F (12°C)
Last update 17 Apr 2:56 am CDT
Extended Forecast for

Nachusa IL

  • Overnight

    Overnight: Mostly clear, with a low around 55. Southeast wind 5 to 10 mph.

    Low: 55 °F

    Mostly Clear

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 81. Breezy, with a south southeast wind 10 to 15 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 81 °F

    Mostly Sunny
    then Chance
    T-storms and
    Breezy

  • Friday Night

    Friday Night: Showers and thunderstorms before 1am, then a chance of showers. Some of the storms could produce heavy rainfall. Low around 40. Breezy, with a south wind 15 to 20 mph becoming northwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 40 °F

    Breezy. Heavy
    Rain then
    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 48. Breezy, with a west northwest wind around 20 mph, with gusts as high as 30 mph.

    High: 48 °F

    Mostly Sunny
    and Breezy

  • Saturday Night

    Saturday Night: Areas of frost after 1am. Otherwise, mostly clear, with a low around 32. West northwest wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 32 °F

    Mostly Clear
    then Areas
    Frost

  • Sunday

    Sunday: Areas of frost before 8am. Otherwise, mostly sunny, with a high near 51.

    High: 51 °F

    Areas Frost
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Widespread frost, mainly after 3am. Otherwise, mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear
    then Frost

  • Monday

    Monday: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 58.

    High: 58 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 55. Southeast wind 5 to 10 mph.
Friday
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 81. Breezy, with a south southeast wind 10 to 15 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 30 mph.
Friday Night
Showers and thunderstorms before 1am, then a chance of showers. Some of the storms could produce heavy rainfall. Low around 40. Breezy, with a south wind 15 to 20 mph becoming northwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
Mostly sunny, with a high near 48. Breezy, with a west northwest wind around 20 mph, with gusts as high as 30 mph.
Saturday Night
Areas of frost after 1am. Otherwise, mostly clear, with a low around 32. West northwest wind 5 to 15 mph, with gusts as high as 25 mph.
Sunday
Areas of frost before 8am. Otherwise, mostly sunny, with a high near 51.
Sunday Night
Widespread frost, mainly after 3am. Otherwise, mostly clear, with a low around 32.
Monday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 58.
Monday Night
Partly cloudy, with a low around 47.
Tuesday
Mostly sunny, with a high near 73.
Tuesday Night
Mostly clear, with a low around 52.
Wednesday
Sunny, with a high near 76.
Wednesday Night
Partly cloudy, with a low around 54.
Thursday
Mostly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Nachusa IL
 41.83°N 89.38°W
Last Update:
2:01 am CDT Apr 17, 2026
Forecast Valid:
3am CDT Apr 17, 2026-6pm CDT Apr 23, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation