La Prairie, IL Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for La Prairie, IL in one place.
A chance of showers and thunderstorms after 7am. Mostly sunny, with a high near 90. Southwest wind 3 to 9 mph. Chance of precipitation is 40%.
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: Jul 16, 2026 5:32 PM CDT.
The active forecast window currently covers Jul 17 to Jul 22, 2026 for La Prairie, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 17 to Jul 22, 2026
- Latest sync
- Jul 16, 2026 5:32 PM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in La Prairie
Monday looks like the warmest upcoming period in La Prairie at 92 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 62 degrees F.
The strongest winds are forecast for Tuesday at about 8 to 14 mph NW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 16, 2026 5:32 PM CDT
- Coverage
- 6 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 showers and thunderstorms. Partly cloudy, with a low around 73. Southwest wind 6 to 9 mph. Chance of precipitation is 30%.
Sunny, with a high near 91. West wind around 10 mph.
A slight chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 72. Chance of precipitation is 20%.
Sunny, with a high near 88.
Mostly clear, with a low around 70.
Mostly sunny, with a high near 92.
A slight chance of showers and thunderstorms after 1am. Mostly clear, with a low around 75. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 7am. Sunny, with a high near 90. Chance of precipitation is 20%.
Mostly clear, with a low around 65.
Mostly sunny, with a high near 82.
Mostly clear, with a low around 62.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Jul 17
|
Chance Showers And Thunderstorms
|
90°F |
3 to 9 mph
SW
|
|
Friday Night
Jul 17
|
Chance Showers And Thunderstorms
|
73°F |
6 to 9 mph
SW
|
|
Saturday
Jul 18
|
Sunny
|
91°F |
10 mph
W
|
|
Saturday Night
Jul 18
|
Slight Chance Showers And Thunderstorms
|
72°F |
5 to 9 mph
N
|
|
Sunday
Jul 19
|
Sunny
|
88°F |
5 mph
E
|
|
Sunday Night
Jul 19
|
Mostly Clear
|
70°F |
6 mph
SE
|
|
Monday
Jul 20
|
Mostly Sunny
|
92°F |
6 to 9 mph
S
|
|
Monday Night
Jul 20
|
Mostly Clear then Slight Chance Showers And Thunderstorms
|
75°F |
9 mph
SW
|
|
Tuesday
Jul 21
|
Slight Chance Showers And Thunderstorms then Sunny
|
90°F |
8 to 14 mph
NW
|
|
Tuesday Night
Jul 21
|
Mostly Clear
|
65°F |
7 to 14 mph
N
|
|
Wednesday
Jul 22
|
Mostly Sunny
|
82°F |
9 mph
NE
|
|
Wednesday Night
Jul 22
|
Mostly Clear
|
62°F |
7 mph
E
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around La Prairie.