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.

Fog

39°F

4°C

Humidity 100%
Wind Speed Calm
Barometer 29.99 in (1016.0 mb)
Dewpoint 39°F (4°C)
Visibility 0.50 mi
Last update 5 Mar 1:56 am CST
Extended Forecast for

Nachusa IL

Dense Fog Advisory March 5, 02:09am until March 5, 12:00pm
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory March 5, 02:09am until March 5, 12:00pm

    NOW until 12:00pm Thu

    Dense Fog Advisory

  • Overnight

    Low: 40 °F

    Slight Chance
    Drizzle and
    Patchy Dense
    Fog

  • Thursday

    Thursday: A slight chance of drizzle before 11am. Patchy dense fog before 3pm. Otherwise, cloudy, with a high near 52. Northeast wind around 5 mph becoming north northwest in the afternoon.

    High: 52 °F

    Slight Chance
    Drizzle and
    Patchy Dense
    Fog then
    Patchy Fog

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after 5am. Areas of fog. Otherwise, cloudy, with a low around 43. East southeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 43 °F

    Areas Fog
    then Slight
    Chance
    Showers and
    Areas Fog

  • Friday

    Friday: Showers and possibly a thunderstorm before noon, then a chance of showers and thunderstorms, mainly between noon and 3pm. Areas of fog before noon. High near 71. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%.

    High: 71 °F

    Showers and
    Areas Fog
    then Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before midnight, then showers and possibly a thunderstorm between midnight and 3am, then showers after 3am. Low around 50. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%.

    Low: 50 °F

    Breezy.
    Chance
    T-storms then
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers before 9am. Partly sunny, with a high near 55.

    High: 55 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

Detailed Forecast

Overnight
A slight chance of drizzle. Patchy dense fog. Otherwise, cloudy, with a low around 40. Northeast wind around 5 mph.
Thursday
A slight chance of drizzle before 11am. Patchy dense fog before 3pm. Otherwise, cloudy, with a high near 52. Northeast wind around 5 mph becoming north northwest in the afternoon.
Thursday Night
A 20 percent chance of showers after 5am. Areas of fog. Otherwise, cloudy, with a low around 43. East southeast wind 5 to 10 mph, with gusts as high as 15 mph.
Friday
Showers and possibly a thunderstorm before noon, then a chance of showers and thunderstorms, mainly between noon and 3pm. Areas of fog before noon. High near 71. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%.
Friday Night
A chance of showers and thunderstorms before midnight, then showers and possibly a thunderstorm between midnight and 3am, then showers after 3am. Low around 50. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%.
Saturday
A 20 percent chance of showers before 9am. Partly sunny, with a high near 55.
Saturday Night
Mostly clear, with a low around 33.
Sunday
Sunny, with a high near 61.
Sunday Night
Mostly clear, with a low around 45.
Monday
Sunny, with a high near 71.
Monday Night
Mostly clear, with a low around 50.
Tuesday
Showers likely. Partly sunny, with a high near 68.
Tuesday Night
Showers. Mostly cloudy, with a low around 40.
Wednesday
A chance of rain. Mostly cloudy, with a high near 49.
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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 CST Mar 5, 2026
Forecast Valid:
2am CST Mar 5, 2026-6pm CDT Mar 11, 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