Jerseyville, IL Weather Forecast
Local 7-day forecast
Patchy Frost then Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Jerseyville, IL in one place.
Patchy frost before 9am. Sunny, with a high near 61. Northeast wind 1 to 6 mph.
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: Oct 17, 2026 12:32 AM CDT.
The active forecast window currently covers Oct 17 to Oct 23, 2026 for Jerseyville, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 17 to Oct 23, 2026
- Latest sync
- Oct 17, 2026 12:32 AM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Jerseyville
Friday looks like the warmest upcoming period in Jerseyville at 81 degrees F.
Saturday Night is the coolest period ahead with temperatures near 34 degrees F.
The strongest winds are forecast for Sunday at about 3 to 8 mph S.
The forecast from Oct 17 through Oct 23 stays mostly dry.
Forecast Details
- Last updated
- Oct 17, 2026 12:32 AM CDT
- Coverage
- 7 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
Patchy frost after 2am. Clear, with a low around 34. Southeast wind 0 to 3 mph.
Areas of frost before 9am. Sunny, with a high near 66. South wind 3 to 8 mph.
Clear, with a low around 37. Southeast wind 2 to 6 mph.
Sunny, with a high near 71.
Partly cloudy, with a low around 39.
Sunny, with a high near 75.
Mostly clear, with a low around 41.
Sunny, with a high near 77.
Clear, with a low around 44.
Sunny, with a high near 80.
Mostly clear, with a low around 47.
Mostly sunny, with a high near 81.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Oct 17
|
Patchy Frost then Sunny
|
61°F |
1 to 6 mph
NE
|
|
Saturday Night
Oct 17
|
Clear then Patchy Frost
|
34°F |
0 to 3 mph
SE
|
|
Sunday
Oct 18
|
Areas Of Frost then Sunny
|
66°F |
3 to 8 mph
S
|
|
Sunday Night
Oct 18
|
Clear
|
37°F |
2 to 6 mph
SE
|
|
Monday
Oct 19
|
Sunny
|
71°F |
3 mph
SE
|
|
Monday Night
Oct 19
|
Partly Cloudy
|
39°F |
2 mph
SE
|
|
Tuesday
Oct 20
|
Sunny
|
75°F |
0 to 3 mph
SE
|
|
Tuesday Night
Oct 20
|
Mostly Clear
|
41°F |
2 mph
E
|
|
Wednesday
Oct 21
|
Sunny
|
77°F |
3 mph
SE
|
|
Wednesday Night
Oct 21
|
Clear
|
44°F |
2 mph
SE
|
|
Thursday
Oct 22
|
Sunny
|
80°F |
3 mph
S
|
|
Thursday Night
Oct 22
|
Mostly Clear
|
47°F |
2 mph
E
|
|
Friday
Oct 23
|
Mostly Sunny
|
81°F |
2 to 6 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Jerseyville.
Nearby forecast pages are not available for this location yet.
