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Hazardous Weather Conditions

Current conditions at

Sterling Rockfalls (KSQI)

Lat: 41.74°NLon: 89.67°WElev: 643ft.

Fair

81°F

27°C

Humidity 82%
Wind Speed Vrbl 3 mph
Barometer 29.94 in (1013.0 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 30 Jun 11:56 pm CDT
Extended Forecast for

Nelson IL

Extreme Heat Warning July 1, 12:16am until July 3, 12:00am
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning July 1, 12:16am until July 3, 12:00am

    NOW until 12:00am Fri

    Extreme Heat Warning

  • Overnight

    Low: 75 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 94. Heat index values as high as 106. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 94 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 76. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 76 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 94. Heat index values as high as 104. Southwest wind 10 to 15 mph.

    High: 94 °F

    Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Partly cloudy, with a low around 74. South southwest wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 30%.

    Low: 74 °F

    Partly Cloudy
    then Chance
    Showers

  • Friday

    Friday: A chance of showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 93. Chance of precipitation is 60%.

    High: 93 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.

    Low: 72 °F

    Chance
    T-storms

  • Independence Day

    Independence Day: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 87.

    High: 87 °F

    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

Overnight
Mostly clear, with a low around 75. Southwest wind around 10 mph, with gusts as high as 15 mph.
Wednesday
Sunny, with a high near 94. Heat index values as high as 106. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
Mostly clear, with a low around 76. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday
Sunny, with a high near 94. Heat index values as high as 104. Southwest wind 10 to 15 mph.
Thursday Night
A chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Partly cloudy, with a low around 74. South southwest wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 30%.
Friday
A chance of showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 93. Chance of precipitation is 60%.
Friday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Independence Day
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 87.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Sunday
A chance of showers after 1pm. Partly sunny, with a high near 86.
Sunday Night
A chance of showers. Partly cloudy, with a low around 67.
Monday
Mostly sunny, with a high near 86.
Monday Night
Partly cloudy, with a low around 66.
Tuesday
Mostly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Nelson IL
 41.79°N 89.61°W
Last Update:
10:41 pm CDT Jun 30, 2026
Forecast Valid:
12am CDT Jul 1, 2026-6pm CDT Jul 7, 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