Beyond the Warning Presentation in Oglesby on 3/10/2026 POSTPONED

Due to the potential for severe thunderstorms on Tuesday, March 10th, the Beyond the Warning seminar in Oglesby, IL has been POSTPONED. We intend to reschedule this session later this spring. Read More >

Hazardous Weather Conditions

Hydrologic Outlook

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Fair

58°F

14°C

Humidity	100%
Wind Speed	S 12 mph
Barometer	29.77 in
Dewpoint	58°F (14°C)
Visibility	7.00 mi
Last update	10 Mar 3:00 am CDT

More Information:

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

Extended Forecast for

Mendota IL

Overnight
Low: 55 °F
Patchy Fog
Tuesday
High: 68 °F
Areas Fog
then Severe
Thunderstorms
Tuesday Night
Low: 41 °F
Severe
Thunderstorms
Wednesday
High: 42 °F
Severe
Thunderstorms
then
Rain/Snow and
Breezy
Wednesday Night
Low: 26 °F
Mostly Clear
Thursday
High: 48 °F
Mostly Sunny
Thursday Night
Low: 39 °F
Chance
Showers and
Breezy
Friday
High: 50 °F
Partly Sunny
and Breezy
Friday Night
Low: 30 °F
Mostly Cloudy

Detailed Forecast

Overnight

Patchy fog. Otherwise, mostly cloudy, with a steady temperature around 55. South southwest wind 5 to 10 mph.

Tuesday

A slight chance of drizzle and thunderstorms between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. Some of the storms could be severe. Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 68. South southwest wind 5 to 10 mph becoming east southeast in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 40%.

Tuesday Night

Showers and possibly a thunderstorm. Some of the storms could be severe. Low around 41. East wind around 10 mph becoming north northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Wednesday

Rain showers before 4pm, then a slight chance of rain and snow showers. Some thunder is also possible. High near 42. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Wednesday Night

Mostly clear, with a low around 26. Northwest wind 5 to 15 mph, with gusts as high as 30 mph.

Thursday

Mostly sunny, with a high near 48.

Thursday Night

A 50 percent chance of showers. Mostly cloudy, with a low around 39. Breezy.

Friday

Partly sunny, with a high near 50. Breezy.

Friday Night

Mostly cloudy, with a low around 30.

Saturday

Cloudy, with a high near 52.