Prairie du Rocher, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Prairie du Rocher, IL in one place.
Sunny, with a high near 98. Heat index values as high as 110. Southwest wind around 7 mph.
Local Weather Overview
This forecast page for Prairie du Rocher, 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: Aug 10, 2026 12:22 AM CDT.
The active forecast window currently covers Aug 11 to Aug 16, 2026 for Prairie du Rocher, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 11 to Aug 16, 2026
- Latest sync
- Aug 10, 2026 12:22 AM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Prairie du Rocher
Tuesday looks like the warmest upcoming period in Prairie du Rocher at 98 degrees F.
Thursday Night is the coolest period ahead with temperatures near 72 degrees F.
The strongest winds are forecast for Tuesday at about 7 mph SW.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 10, 2026 12:22 AM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- LSX
- Radar station
- KLSX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 77. Southwest wind around 7 mph.
A slight chance of showers and thunderstorms between 7am and 1pm. Mostly sunny, with a high near 95. Chance of precipitation is 20%.
A chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 75. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms. Partly sunny, with a high near 91. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 89. Chance of precipitation is 50%.
A chance of showers and thunderstorms after 7pm. Mostly cloudy, with a low around 72. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 92. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 73. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 90. Chance of precipitation is 20%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Aug 11
|
Sunny
|
98°F |
7 mph
SW
|
|
Tuesday Night
Aug 11
|
Partly Cloudy
|
77°F |
7 mph
SW
|
|
Wednesday
Aug 12
|
Slight Chance Showers And Thunderstorms
|
95°F |
7 mph
SW
|
|
Wednesday Night
Aug 12
|
Chance Showers And Thunderstorms
|
75°F |
6 mph
SW
|
|
Thursday
Aug 13
|
Chance Showers And Thunderstorms
|
91°F |
3 mph
E
|
|
Thursday Night
Aug 13
|
Chance Showers And Thunderstorms
|
72°F |
5 mph
E
|
|
Friday
Aug 14
|
Chance Showers And Thunderstorms
|
89°F |
5 mph
E
|
|
Friday Night
Aug 14
|
Chance Showers And Thunderstorms
|
72°F |
6 mph
E
|
|
Saturday
Aug 15
|
Chance Showers And Thunderstorms
|
92°F |
6 mph
S
|
|
Saturday Night
Aug 15
|
Slight Chance Showers And Thunderstorms
|
73°F |
5 mph
S
|
|
Sunday
Aug 16
|
Slight Chance Showers And Thunderstorms
|
90°F |
6 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Prairie du Rocher.