Air Quality Concerns; Fire Weather in the West; Flash Flooding in the Southeast

Wildfire smoke continues to result in poor air quality from the Upper Midwest into the Northeast. Multiple days of hot, dry and windy conditions are expected to bring fire weather concerns for portions of the Four Corners region into the central Great Basin and Rockies. Heavy rainfall and a flash flooding threat continues in the Southeast. Severe thunderstorms continue across the Northern Plains Read More >

Hazardous Weather Conditions

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Mostly Cloudy

82°F

28°C

Humidity 51%
Wind Speed E 6 mph
Barometer 30.23 in
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 5 Aug 2:35 pm CDT
Extended Forecast for

Mendota IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 82. East wind around 5 mph.

    High: 82 °F

    Mostly Sunny

  • Tonight

    Tonight: Patchy fog after 3am.  Otherwise, mostly clear, with a low around 61. East northeast wind around 5 mph.

    Low: 61 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Areas of smoke before 10am. Patchy fog before 7am.  Otherwise, sunny, with a high near 84. East northeast wind around 5 mph becoming south southeast in the afternoon.

    High: 84 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 66. South southeast wind around 5 mph becoming calm.

    Low: 66 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 87. South wind around 5 mph, with gusts as high as 15 mph.

    High: 87 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 69.

    Low: 69 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny

  • Friday Night

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

    Low: 71 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 82. East wind around 5 mph.
Tonight
Patchy fog after 3am. Otherwise, mostly clear, with a low around 61. East northeast wind around 5 mph.
Wednesday
Areas of smoke before 10am. Patchy fog before 7am. Otherwise, sunny, with a high near 84. East northeast wind around 5 mph becoming south southeast in the afternoon.
Wednesday Night
Partly cloudy, with a low around 66. South southeast wind around 5 mph becoming calm.
Thursday
Mostly sunny, with a high near 87. South wind around 5 mph, with gusts as high as 15 mph.
Thursday Night
Partly cloudy, with a low around 69.
Friday
Mostly sunny, with a high near 89.
Friday Night
Mostly clear, with a low around 71.
Saturday
Sunny, with a high near 90.
Saturday Night
Partly cloudy, with a low around 71.
Sunday
Mostly sunny, with a high near 88.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
Mendota IL
 41.54°N 89.13°W
1:56 pm CDT Aug 5, 2025
2pm CDT Aug 5, 2025-6pm CDT Aug 11, 2025
 
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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