Excessive Rainfall Potential for the Southeast; Heat Expands for Center of the Nation; Critical Fire Weather for Pacific Northwest

Flash flooding threatens areas from the Tennessee Valley to the Carolinas as storms repeat along a stalled front. Monsoonal storms may trigger flooding in the Southwest. Dangerous heat expands across the Desert Southwest, Plains, mid-Mississippi Valley and Southern Tier. Critical fire weather for interior Pacific Northwest. Cooler, drier air brings brief relief to the Great Lakes and Northeast. Read More >

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Overcast

72°F

22°C

Humidity 83%
Wind Speed S 7 mph
Barometer 30.02 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 25 Jul 11:20 am CDT
Extended Forecast for

2 Miles N Dalzell IL

Extreme Heat Watch July 26, 09:00pm until July 27, 10:00pm
Extreme Heat Warning July 26, 11:00am until July 26, 09:00pm
Click here for hazard details and duration
Extreme Heat Watch
Extreme Heat Warning
  • Today

    Today: A slight chance of drizzle before noon.  Mostly cloudy, with a high near 81. South wind around 5 mph.

    High: 81 °F

    Slight Chance
    Drizzle

  • Tonight

    Tonight: Partly cloudy, with a low around 70. South wind around 5 mph becoming calm  in the evening.

    Low: 70 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 91. Heat index values as high as 103. Southwest wind 5 to 10 mph.

    High: 91 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms.  Partly cloudy, with a low around 74. South wind 5 to 10 mph.  Chance of precipitation is 30%.

    Low: 74 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 72.

    Low: 72 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

Detailed Forecast

Today
A slight chance of drizzle before noon. Mostly cloudy, with a high near 81. South wind around 5 mph.
Tonight
Partly cloudy, with a low around 70. South wind around 5 mph becoming calm in the evening.
Sunday
Partly sunny, with a high near 91. Heat index values as high as 103. Southwest wind 5 to 10 mph.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 74. South wind 5 to 10 mph. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 93.
Monday Night
Mostly clear, with a low around 72.
Tuesday
Mostly sunny, with a high near 88.
Tuesday Night
Mostly clear, with a low around 65.
Wednesday
Sunny, with a high near 88.
Wednesday Night
Mostly clear, with a low around 65.
Thursday
Sunny, with a high near 87.
Thursday Night
Partly cloudy, with a low around 67.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Dalzell IL
 41.39°N 89.17°W (Elev. 669 ft)
9:57 am CDT Jul 25, 2026
11am CDT Jul 25, 2026-6pm CDT Jul 31, 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