Thunderstorms and Heavy Rains in the Appalachians

Multiple rounds of moderate to locally heavy rain will impact portions of the Appalachians and Mid-Atlantic, which may lead to flash flooding concerns. Thunderstorms with isolated severe wind gusts will be possible this afternoon from parts of the Southeast into the southern and central Appalachians. A multi-day heavy rain will pose a flash flood threat in New Mexico beginning Tuesday. Read More >

Hazardous Weather Conditions

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Overcast

61°F

16°C

Humidity 88%
Wind Speed NE 12 G 17 mph
Barometer 30.08 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 21 Sep 6:00 am CDT
Extended Forecast for

Mendota IL

  • Today

    Today: Patchy drizzle before 8am, then a slight chance of showers after 8am.  Cloudy, with a high near 62. East northeast wind around 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 20%.

    High: 62 °F

    Patchy
    Drizzle

  • Tonight

    Tonight: A 30 percent chance of showers, mainly between 9pm and 2am.  Mostly cloudy, with a low around 54. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 54 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A 20 percent chance of showers before 10am.  Partly sunny, with a high near 63. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 63 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 50. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 50 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 68. East northeast wind 10 to 15 mph.

    High: 68 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

Detailed Forecast

Today
Patchy drizzle before 8am, then a slight chance of showers after 8am. Cloudy, with a high near 62. East northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Tonight
A 30 percent chance of showers, mainly between 9pm and 2am. Mostly cloudy, with a low around 54. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
A 20 percent chance of showers before 10am. Partly sunny, with a high near 63. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 50. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday
Mostly sunny, with a high near 68. East northeast wind 10 to 15 mph.
Wednesday Night
Partly cloudy, with a low around 50.
Thursday
Mostly sunny, with a high near 68.
Thursday Night
Partly cloudy, with a low around 52.
Friday
Mostly sunny, with a high near 69.
Friday Night
Partly cloudy, with a low around 50.
Saturday
Partly sunny, with a high near 69.
Saturday Night
Mostly cloudy, with a low around 52.
Sunday
Partly sunny, with a high near 72.
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ABOUT THIS FORECAST

 
Point Forecast:
Mendota IL
 41.56°N 89.13°W
3:46 am CDT Sep 21, 2026
6am CDT Sep 21, 2026-6pm CDT Sep 27, 2026
 
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Additional Resources

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Hourly Weather Forecast

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