Jerseyville, IL Weather Forecast
Local 7-day forecast
Slight Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Jerseyville, IL in one place.
A slight chance of showers and thunderstorms after 7am. Sunny, with a high near 91. Chance of precipitation is 20%.
Local Weather Overview
This forecast page for Jerseyville, 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 14, 2026 4:18 AM CDT.
The active forecast window currently covers Jul 16 to Jul 20, 2026 for Jerseyville, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 16 to Jul 20, 2026
- Latest sync
- Jul 14, 2026 4:18 AM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Jerseyville
Saturday looks like the warmest upcoming period in Jerseyville at 93 degrees F.
Sunday Night is the coolest period ahead with temperatures near 69 degrees F.
The strongest winds are forecast for Saturday at about 8 to 12 mph W.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 14, 2026 4:18 AM CDT
- Coverage
- 5 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 slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 72. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms between 7am and 1pm. Sunny, with a high near 92. Chance of precipitation is 20%.
Mostly clear, with a low around 73.
A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 93. Chance of precipitation is 20%.
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 before 7am. Mostly sunny, with a high near 91. Chance of precipitation is 20%.
Mostly clear, with a low around 69.
Mostly sunny, with a high near 89.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Jul 16
|
Slight Chance Showers And Thunderstorms
|
91°F |
1 to 5 mph
SW
|
|
Thursday Night
Jul 16
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
72°F |
3 mph
SW
|
|
Friday
Jul 17
|
Slight Chance Showers And Thunderstorms
|
92°F |
3 to 9 mph
SW
|
|
Friday Night
Jul 17
|
Mostly Clear
|
73°F |
5 to 8 mph
SW
|
|
Saturday
Jul 18
|
Sunny then Slight Chance Showers And Thunderstorms
|
93°F |
8 to 12 mph
W
|
|
Saturday Night
Jul 18
|
Slight Chance Showers And Thunderstorms
|
73°F |
8 mph
W
|
|
Sunday
Jul 19
|
Slight Chance Showers And Thunderstorms then Mostly Sunny
|
91°F |
10 mph
NW
|
|
Sunday Night
Jul 19
|
Mostly Clear
|
69°F |
6 to 9 mph
S
|
|
Monday
Jul 20
|
Mostly Sunny
|
89°F |
6 to 10 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Jerseyville.
Nearby forecast pages are not available for this location yet.
