Sefton, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Sefton, IL in one place.
Sunny, with a high near 78. South wind 6 to 17 mph.
Local Weather Overview
This forecast page for Sefton, 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: Apr 21, 2026 10:23 PM CDT.
The active forecast window currently covers Apr 23 to Apr 28, 2026 for Sefton, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 23 to Apr 28, 2026
- Latest sync
- Apr 21, 2026 10:23 PM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Sefton
Thursday looks like the warmest upcoming period in Sefton at 78 degrees F.
Saturday Night is the coolest period ahead with temperatures near 51 degrees F.
The strongest winds are forecast for Thursday at about 6 to 17 mph S.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 21, 2026 10:23 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- LSX
- Radar station
- KILX
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 1am and 4am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 62. South wind around 13 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.
Showers and thunderstorms. Mostly cloudy, with a high near 75. Chance of precipitation is 80%.
Showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 54. Chance of precipitation is 80%.
A slight chance of rain showers. Mostly sunny, with a high near 74. Chance of precipitation is 20%.
A slight chance of rain showers before 7pm. Partly cloudy, with a low around 51. Chance of precipitation is 20%.
Mostly sunny, with a high near 74.
A slight chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 57. Chance of precipitation is 50%.
Showers and thunderstorms likely. Partly sunny, with a high near 75. Chance of precipitation is 70%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 53. Chance of precipitation is 70%.
A slight chance of rain showers before 7am. Mostly sunny, with a high near 69. Chance of precipitation is 20%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Apr 23
|
Sunny
|
78°F |
6 to 17 mph
S
|
|
Thursday Night
Apr 23
|
Partly Cloudy then Chance Showers And Thunderstorms
|
62°F |
13 mph
S
|
|
Friday
Apr 24
|
Showers And Thunderstorms
|
75°F |
9 to 13 mph
SW
|
|
Friday Night
Apr 24
|
Showers And Thunderstorms then Chance Showers And Thunderstorms
|
54°F |
2 to 7 mph
NW
|
|
Saturday
Apr 25
|
Slight Chance Rain Showers
|
74°F |
8 mph
N
|
|
Saturday Night
Apr 25
|
Slight Chance Rain Showers then Partly Cloudy
|
51°F |
6 mph
NE
|
|
Sunday
Apr 26
|
Mostly Sunny
|
74°F |
6 to 9 mph
E
|
|
Sunday Night
Apr 26
|
Slight Chance Showers And Thunderstorms
|
57°F |
7 to 14 mph
E
|
|
Monday
Apr 27
|
Showers And Thunderstorms Likely
|
75°F |
15 mph
SE
|
|
Monday Night
Apr 27
|
Showers And Thunderstorms Likely
|
53°F |
9 to 14 mph
SW
|
|
Tuesday
Apr 28
|
Slight Chance Rain Showers then Mostly Sunny
|
69°F |
12 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Sefton.