La Prairie, IL Weather Forecast
Local 7-day forecast
Showers And Thunderstorms then Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for La Prairie, IL in one place.
Showers and thunderstorms before 7am, then a chance of showers and thunderstorms. Partly sunny, with a high near 66. Chance of precipitation is 80%.
Local Weather Overview
This forecast page for La Prairie, 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: Apr 13, 2026 1:19 PM CDT.
The active forecast window currently covers Apr 18 to Apr 19, 2026 for La Prairie, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 18 to Apr 19, 2026
- Latest sync
- Apr 13, 2026 1:19 PM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in La Prairie
Saturday looks like the warmest upcoming period in La Prairie at 66 degrees F.
Saturday Night is the coolest period ahead with temperatures near 39 degrees F.
The strongest winds are forecast for Saturday at about 16 mph W.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 13, 2026 1:19 PM CDT
- Coverage
- 2 days
- Time zone
- America/Chicago
- Forecast office
- LSX
- Radar station
- KILX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of rain showers before 1am. Partly cloudy, with a low around 39. Chance of precipitation is 30%.
Sunny, with a high near 60.
Mostly clear, with a low around 41.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Apr 18
|
Showers And Thunderstorms then Chance Showers And Thunderstorms
|
66°F |
16 mph
W
|
|
Saturday Night
Apr 18
|
Chance Rain Showers
|
39°F |
10 to 14 mph
NW
|
|
Sunday
Apr 19
|
Sunny
|
60°F |
12 mph
NW
|
|
Sunday Night
Apr 19
|
Mostly Clear
|
41°F |
9 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around La Prairie.