Tracking Storm System Across the Eastern U.S.

A storm system will continue to produce widespread showers and thunderstorms as it progresses eastward across the central U.S. into the Northeast through the weekend. There are risks of severe thunderstorms and excessive rainfall on Saturday from the Ozarks into the mid-Mississippi River Valley with potential for damaging winds, large hail, tornadoes, and flash flooding. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Fair

67°F

19°C

Humidity	68%
Wind Speed	S 9 mph
Barometer	29.76 in
Dewpoint	56°F (13°C)
Visibility	10.00 mi
Last update	17 Oct 9:15 pm CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Mendota IL

Tonight
Low: 62 °F
Partly Cloudy
then Showers
Likely
Saturday
High: 74 °F
Showers
Likely
Saturday Night
Low: 49 °F
Showers and
Breezy
Sunday
High: 58 °F
Chance
Showers and
Breezy
Sunday Night
Low: 39 °F
Clear
Monday
High: 68 °F
Sunny
Monday Night
Low: 44 °F
Chance
Showers
Tuesday
High: 55 °F
Mostly Sunny
and Breezy
Tuesday Night
Low: 36 °F
Mostly Clear

Detailed Forecast

Tonight

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Mostly cloudy, with a low around 62. South wind 10 to 15 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday

Showers likely and possibly a thunderstorm before 7am, then a chance of showers and thunderstorms after 7am. Mostly cloudy, with a high near 74. West southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday Night

Showers and thunderstorms likely before 1am, then showers and possibly a thunderstorm between 1am and 4am, then showers after 4am. Low around 49. Breezy, with a southwest wind 5 to 10 mph becoming northwest 15 to 20 mph after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

Sunday

A 30 percent chance of showers before 1pm. Mostly cloudy through mid morning, then gradual clearing, with a high near 58. Breezy, with a northwest wind 20 to 25 mph, with gusts as high as 30 mph.

Sunday Night

Clear, with a low around 39. West northwest wind 5 to 10 mph becoming south southwest after midnight. Winds could gust as high as 15 mph.

Monday

Sunny, with a high near 68.

Monday Night

A 30 percent chance of showers before 1am. Partly cloudy, with a low around 44.

Tuesday

Mostly sunny, with a high near 55. Breezy.

Tuesday Night

Mostly clear, with a low around 36.

Wednesday

Sunny, with a high near 59.