Spring Valley, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Spring Valley, IL in one place.
Sunny, with a high near 91. Southwest wind around 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: Oct 12, 2026 4:13 AM CDT.
The active forecast window currently covers Oct 13 to Oct 18, 2026 for Spring Valley, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 13 to Oct 18, 2026
- Latest sync
- Oct 12, 2026 4:13 AM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Spring Valley
Tuesday looks like the warmest upcoming period in Spring Valley at 91 degrees F.
Friday Night is the coolest period ahead with temperatures near 38 degrees F.
The strongest winds are forecast for Friday at about 16 to 22 mph NW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 12, 2026 4:13 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
A chance of showers and thunderstorms between 7pm and 1am, then showers and thunderstorms. Mostly cloudy, with a low around 69. Southwest wind around 5 mph. Chance of precipitation is 90%.
Showers and thunderstorms. Cloudy, with a high near 76. Chance of precipitation is 90%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 62. Chance of precipitation is 70%.
Showers and thunderstorms. Mostly cloudy, with a high near 74. Chance of precipitation is 90%.
Showers and thunderstorms before 1am. Mostly cloudy, with a low around 50. Chance of precipitation is 80%.
Mostly sunny, with a high near 59.
Mostly clear, with a low around 38.
Sunny, with a high near 60.
Clear, with a low around 39.
Sunny, with a high near 67.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Oct 13
|
Sunny
|
91°F |
9 mph
SW
|
|
Tuesday Night
Oct 13
|
Chance Showers And Thunderstorms
|
69°F |
5 mph
SW
|
|
Wednesday
Oct 14
|
Showers And Thunderstorms
|
76°F |
6 mph
N
|
|
Wednesday Night
Oct 14
|
Showers And Thunderstorms Likely
|
62°F |
6 mph
NE
|
|
Thursday
Oct 15
|
Showers And Thunderstorms
|
74°F |
7 to 10 mph
S
|
|
Thursday Night
Oct 15
|
Showers And Thunderstorms
|
50°F |
10 to 17 mph
NW
|
|
Friday
Oct 16
|
Mostly Sunny
|
59°F |
16 to 22 mph
NW
|
|
Friday Night
Oct 16
|
Mostly Clear
|
38°F |
3 to 14 mph
N
|
|
Saturday
Oct 17
|
Sunny
|
60°F |
3 mph
E
|
|
Saturday Night
Oct 17
|
Clear
|
39°F |
2 to 6 mph
S
|
|
Sunday
Oct 18
|
Sunny
|
67°F |
6 to 9 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Spring Valley.