National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Light Rain

78°F

26°C

Humidity 61%
Wind Speed S 15 G 21 mph
Barometer 29.61 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 17 Apr 6:55 pm CDT
Extended Forecast for

Mendota IL

Flood Watch April 17, 07:03pm until April 18, 05:00am
Tornado Watch April 17, 07:03pm until April 17, 08:00pm
Click here for hazard details and duration
Flood Watch
...
  •  
    Flood Watch April 17, 07:03pm until April 18, 05:00am
    Tornado Watch April 17, 07:03pm until April 17, 08:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Tonight

    Low: 41 °F

    Breezy.
    Severe
    Thunderstorms
    then Showers
    Likely

  • Saturday

    Saturday: Mostly sunny, with a high near 50. Breezy, with a northwest wind around 20 mph, with gusts as high as 30 mph.

    High: 50 °F

    Mostly Sunny
    and Breezy

  • Saturday Night

    Saturday Night: Areas of frost after 3am. Otherwise, mostly clear, with a low around 33. West northwest wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 33 °F

    Mostly Clear
    then Areas
    Frost

  • Sunday

    Sunday: Areas of frost before 8am. Otherwise, mostly sunny, with a high near 51. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 51 °F

    Areas Frost
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Widespread frost, mainly after 4am. Otherwise, mostly clear, with a low around 31. North northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 31 °F

    Mostly Clear
    then Frost

  • Monday

    Monday: Widespread frost before 8am. Otherwise, sunny, with a high near 57.

    High: 57 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

Detailed Forecast

Tonight
Showers and thunderstorms before 1am, then showers likely. Some of the storms could be severe. Low around 41. Breezy, with a south wind 15 to 20 mph becoming west northwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Saturday
Mostly sunny, with a high near 50. Breezy, with a northwest wind around 20 mph, with gusts as high as 30 mph.
Saturday Night
Areas of frost after 3am. Otherwise, mostly clear, with a low around 33. West northwest wind 5 to 15 mph, with gusts as high as 25 mph.
Sunday
Areas of frost before 8am. Otherwise, mostly sunny, with a high near 51. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Widespread frost, mainly after 4am. Otherwise, mostly clear, with a low around 31. North northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
Widespread frost before 8am. Otherwise, sunny, with a high near 57.
Monday Night
Partly cloudy, with a low around 46.
Tuesday
Mostly sunny, with a high near 74.
Tuesday Night
Mostly clear, with a low around 49.
Wednesday
Sunny, with a high near 75.
Wednesday Night
Partly cloudy, with a low around 54.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
Friday
A chance of showers. Mostly cloudy, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mendota IL
 41.54°N 89.1°W
Last Update:
6:45 pm CDT Apr 17, 2026
Forecast Valid:
7pm CDT Apr 17, 2026-6pm CDT Apr 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation