Severe Weather and Heavy Rain from the Mid-South to the Mid-Atlantic; Building Heat in the West

Severe thunderstorms may bring damaging winds, a couple of tornadoes, and heavy rain across portions of the Mid-Atlantic into the Mid-South. Severe storms may produce hail across the northern/central High Plains. Hazardous heat will linger across the southern U.S. and build across the West through mid-week. Fire weather concerns continue for Interior Alaska and the Four Corners region. Read More >

Hazardous Weather Conditions

Current conditions at

Sterling Rockfalls (KSQI)

Lat: 41.74°NLon: 89.67°WElev: 643ft.

Fair

79°F

26°C

Humidity 44%
Wind Speed N 8 mph
Barometer 30.06 in (1017.4 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 22 Jun 4:56 pm CDT
Extended Forecast for

Nelson IL

  • This Afternoon

    This Afternoon: A 20 percent chance of showers.  Mostly sunny, with a high near 76. North northeast wind around 10 mph.

    High: 76 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A 20 percent chance of showers before 8pm.  Mostly clear, with a low around 53. North northeast wind around 5 mph becoming calm  in the evening. Winds could gust as high as 10 mph.

    Low: 53 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 79. Calm wind becoming south around 5 mph.

    High: 79 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 58. Calm wind becoming south southeast around 5 mph after midnight.

    Low: 58 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers, then showers likely and possibly a thunderstorm after 1pm.  Mostly sunny, with a high near 80. South wind 5 to 10 mph becoming west southwest in the afternoon. Winds could gust as high as 15 mph.  Chance of precipitation is 60%.

    High: 80 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am.  Partly cloudy, with a low around 59. Chance of precipitation is 20%.

    Low: 59 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers. Mostly sunny, with a high near 76. North northeast wind around 10 mph.
Tonight
A 20 percent chance of showers before 8pm. Mostly clear, with a low around 53. North northeast wind around 5 mph becoming calm in the evening. Winds could gust as high as 10 mph.
Tuesday
Increasing clouds, with a high near 79. Calm wind becoming south around 5 mph.
Tuesday Night
Mostly cloudy, with a low around 58. Calm wind becoming south southeast around 5 mph after midnight.
Wednesday
A slight chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 80. South wind 5 to 10 mph becoming west southwest in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 60%.
Wednesday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 59. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 79.
Thursday Night
Partly cloudy, with a low around 58.
Friday
Mostly sunny, with a high near 79.
Friday Night
A chance of showers. Partly cloudy, with a low around 60.
Saturday
Mostly sunny, with a high near 83.
Saturday Night
A chance of showers. Partly cloudy, with a low around 66.
Sunday
Mostly sunny, with a high near 88.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Monday
Sunny, with a high near 91.
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ABOUT THIS FORECAST

 
Point Forecast:
Nelson IL
 41.79°N 89.61°W
2:36 pm CDT Jun 22, 2026
5pm CDT Jun 22, 2026-6pm CDT Jun 29, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database