Mendota, IL Weather Forecast
Local 7-day forecast
Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Mendota, IL in one place.
Rain showers likely before 7am, then showers and thunderstorms. Mostly cloudy, with a high near 65. East wind 5 to 10 mph. Chance of precipitation is 100%.
Local Weather Overview
This forecast page for Mendota, IL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Oct 13, 2026 11:25 PM CDT.
The active forecast window currently covers Oct 15 to Oct 20, 2026 for Mendota, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 15 to Oct 20, 2026
- Latest sync
- Oct 13, 2026 11:25 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Mendota
Tuesday looks like the warmest upcoming period in Mendota at 72 degrees F.
Friday Night is the coolest period ahead with temperatures near 33 degrees F.
The strongest winds are forecast for Friday at about 15 to 25 mph NW.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 13, 2026 11:25 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- LOT
- Radar station
- KLOT
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Rain showers before 7pm, then showers and thunderstorms likely between 7pm and 1am. Mostly cloudy, with a low around 45. North northwest wind 5 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%.
Mostly sunny, with a high near 57.
Areas of frost after 3am. Mostly clear, with a low around 33.
Areas of frost before 8am. Sunny, with a high near 60.
Clear, with a low around 40.
Sunny, with a high near 67.
Partly cloudy, with a low around 46.
A slight chance of rain showers between 7am and 1pm. Partly sunny, with a high near 68.
Mostly cloudy, with a low around 47.
Mostly sunny, with a high near 72.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Oct 15
|
Showers And Thunderstorms
|
65°F |
5 to 10 mph
E
|
|
Thursday Night
Oct 15
|
Showers And Thunderstorms Likely
|
45°F |
5 to 20 mph
NNW
|
|
Friday
Oct 16
|
Mostly Sunny
|
57°F |
15 to 25 mph
NW
|
|
Friday Night
Oct 16
|
Mostly Clear then Areas Of Frost
|
33°F |
0 to 15 mph
NNW
|
|
Saturday
Oct 17
|
Areas Of Frost then Sunny
|
60°F |
0 to 5 mph
WSW
|
|
Saturday Night
Oct 17
|
Clear
|
40°F |
5 to 10 mph
SSW
|
|
Sunday
Oct 18
|
Sunny
|
67°F |
10 to 15 mph
SSW
|
|
Sunday Night
Oct 18
|
Partly Cloudy
|
46°F |
5 to 10 mph
SSW
|
|
Monday
Oct 19
|
Slight Chance Rain Showers
|
68°F |
5 mph
SSW
|
|
Monday Night
Oct 19
|
Mostly Cloudy
|
47°F |
0 mph
|
|
Tuesday
Oct 20
|
Mostly Sunny
|
72°F |
0 to 5 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Mendota.