Additional Severe Weather Concerns for the Center of the Nation; Heat Builds for the West; Critical Fire Weather for Alaska

Active hazardous weather continues for the center of the nation with more severe thunderstorms and heavy rainfall today. Heat will linger across the southern Plains, then expand westward early in the week. The combination of heat and dry conditions will fuel fire weather concerns for the Four Corners region and across interior Alaska. Read More >

Current conditions at

Sterling Rockfalls (KSQI)

Lat: 41.74°NLon: 89.67°WElev: 643ft.

Fair

64°F

18°C

Humidity 90%
Wind Speed E 5 mph
Barometer 29.92 in (1013.0 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 21 Jun 8:56 am CDT
Extended Forecast for

Nachusa IL

  • Today

    Today: Showers, with thunderstorms also possible after 4pm. Some of the storms could produce heavy rainfall.  Temperature rising to near 66 by 11am, then falling to around 60 during the remainder of the day. Southeast wind 5 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    High: 66 °F

    Showers
    Likely then
    Heavy Rain

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 2am, then a slight chance of showers between 2am and 4am.  Low around 57. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 57 °F

    Showers then
    Chance
    Showers

  • Monday

    Monday: Partly sunny, with a high near 76. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 76 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 51. Northeast wind around 5 mph becoming calm  after midnight. Winds could gust as high as 10 mph.

    Low: 51 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77. Northeast wind around 5 mph becoming calm.

    High: 77 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms, mainly after 1pm.  Mostly sunny, with a high near 78.

    High: 78 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

Detailed Forecast

Today
Showers, with thunderstorms also possible after 4pm. Some of the storms could produce heavy rainfall. Temperature rising to near 66 by 11am, then falling to around 60 during the remainder of the day. Southeast wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Tonight
Showers and possibly a thunderstorm before 2am, then a slight chance of showers between 2am and 4am. Low around 57. North northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Monday
Partly sunny, with a high near 76. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 51. Northeast wind around 5 mph becoming calm after midnight. Winds could gust as high as 10 mph.
Tuesday
Mostly sunny, with a high near 77. Northeast wind around 5 mph becoming calm.
Tuesday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 57.
Wednesday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 78.
Wednesday Night
Partly cloudy, with a low around 57.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
Mostly clear, with a low around 56.
Friday
Mostly sunny, with a high near 79.
Friday Night
Partly cloudy, with a low around 59.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
Nachusa IL
 41.83°N 89.38°W
9:41 am CDT Jun 21, 2026
9am CDT Jun 21, 2026-6pm CDT Jun 27, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

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