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

70°F

21°C

Humidity 88%
Wind Speed S 8 mph
Barometer 30.02 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 25 Jul 9:57 am CDT
Extended Forecast for

4 Miles NE Arlington 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.  Cloudy, with a high near 80. South wind 5 to 10 mph.

    High: 80 °F

    Slight Chance
    Drizzle then
    Mostly Cloudy

  • Tonight

    Tonight: Partly cloudy, with a low around 69. South wind around 5 mph becoming calm  in the evening.

    Low: 69 °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 between 1am and 4am, then a chance of showers after 4am.  Partly cloudy, with a low around 73. South wind 5 to 10 mph.  Chance of precipitation is 30%.

    Low: 73 °F

    Partly Cloudy
    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 71.

    Low: 71 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

Detailed Forecast

Today
A slight chance of drizzle before noon. Cloudy, with a high near 80. South wind 5 to 10 mph.
Tonight
Partly cloudy, with a low around 69. 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 between 1am and 4am, then a chance of showers after 4am. Partly cloudy, with a low around 73. 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 71.
Tuesday
Sunny, with a high near 87.
Tuesday Night
Mostly clear, with a low around 64.
Wednesday
Sunny, with a high near 87.
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
Mostly sunny, with a high near 87.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NE Arlington IL
 41.5°N 89.19°W (Elev. 735 ft)
9:57 am CDT Jul 25, 2026
10am 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