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.

Fair

66°F

19°C

Humidity 83%
Wind Speed S 5 mph
Barometer 30.07 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 24 Jul 9:56 pm CDT
Extended Forecast for

Arlington IL

Extreme Heat Watch July 26, 12:00pm until July 27, 10:00pm
Click here for hazard details and duration
Extreme Heat Watch
  • Tonight

    Tonight: A 20 percent chance of showers after 3am.  Increasing clouds, with a low around 63. South wind around 5 mph becoming calm.

    Low: 63 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: A 10 percent chance of showers before 7am.  Mostly cloudy, with a high near 83. South wind around 5 mph.

    High: 83 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 69. South wind around 5 mph.

    Low: 69 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 90. Heat index values as high as 101. Southwest wind 5 to 10 mph.

    High: 90 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 74.

    Low: 74 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 94.

    High: 94 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

Detailed Forecast

Tonight
A 20 percent chance of showers after 3am. Increasing clouds, with a low around 63. South wind around 5 mph becoming calm.
Saturday
A 10 percent chance of showers before 7am. Mostly cloudy, with a high near 83. South wind around 5 mph.
Saturday Night
Partly cloudy, with a low around 69. South wind around 5 mph.
Sunday
Mostly sunny, with a high near 90. Heat index values as high as 101. Southwest wind 5 to 10 mph.
Sunday Night
Partly cloudy, with a low around 74.
Monday
Mostly sunny, with a high near 94.
Monday Night
Mostly clear, with a low around 71.
Tuesday
Sunny, with a high near 89.
Tuesday Night
Mostly clear, with a low around 67.
Wednesday
Sunny, with a high near 88.
Wednesday Night
Mostly clear, with a low around 67.
Thursday
Sunny, with a high near 87.
Thursday Night
Mostly clear, with a low around 68.
Friday
Mostly sunny, with a high near 87.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Arlington IL
 41.48°N 89.25°W (Elev. 774 ft)
9:16 pm CDT Jul 24, 2026
10pm CDT Jul 24, 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