Spring Valley, IL Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Spring Valley, IL in one place.
Mostly sunny, with a high near 86. South wind 5 to 9 mph.
Local Weather Overview
This forecast page for Spring Valley, 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 27, 2026 11:19 PM CDT.
The active forecast window currently covers Aug 29 to Sep 3, 2026 for Spring Valley, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 29 to Sep 3, 2026
- Latest sync
- Aug 27, 2026 11:19 PM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Spring Valley
Monday looks like the warmest upcoming period in Spring Valley at 96 degrees F.
Saturday Night is the coolest period ahead with temperatures near 72 degrees F.
The strongest winds are forecast for Sunday at about 13 mph S.
The forecast from Aug 29 through Sep 3 stays mostly dry.
Forecast Details
- Last updated
- Aug 27, 2026 11:19 PM 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 72. South wind around 10 mph, with gusts as high as 22 mph.
Mostly sunny, with a high near 94.
Partly cloudy, with a low around 76.
Mostly sunny, with a high near 96.
Partly cloudy, with a low around 77.
Mostly sunny, with a high near 96.
Mostly clear, with a low around 76.
Sunny, with a high near 95.
Mostly clear, with a low around 76.
Mostly sunny, with a high near 95.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Aug 29
|
Mostly Sunny
|
86°F |
5 to 9 mph
S
|
|
Saturday Night
Aug 29
|
Partly Cloudy
|
72°F |
10 mph
S
|
|
Sunday
Aug 30
|
Mostly Sunny
|
94°F |
13 mph
S
|
|
Sunday Night
Aug 30
|
Partly Cloudy
|
76°F |
13 mph
S
|
|
Monday
Aug 31
|
Mostly Sunny
|
96°F |
10 mph
SW
|
|
Monday Night
Aug 31
|
Partly Cloudy
|
77°F |
8 mph
S
|
|
Tuesday
Sep 1
|
Mostly Sunny
|
96°F |
8 mph
SW
|
|
Tuesday Night
Sep 1
|
Mostly Clear
|
76°F |
6 mph
S
|
|
Wednesday
Sep 2
|
Sunny
|
95°F |
7 mph
SW
|
|
Wednesday Night
Sep 2
|
Mostly Clear
|
76°F |
5 mph
S
|
|
Thursday
Sep 3
|
Mostly Sunny
|
95°F |
6 to 9 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Spring Valley.