Lake Summerset, IL Weather Forecast
Local 7-day forecast
Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Lake Summerset, IL in one place.
Showers and thunderstorms before 4pm, then showers and thunderstorms. Mostly cloudy. High near 79, with temperatures falling to around 74 in the afternoon. Southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Local Weather Overview
This forecast page for Lake Summerset, 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: Jun 8, 2026 3:20 PM CDT.
The active forecast window currently covers Jun 8 to Jun 14, 2026 for Lake Summerset, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 8 to Jun 14, 2026
- Latest sync
- Jun 8, 2026 3:20 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Lake Summerset
Wednesday looks like the warmest upcoming period in Lake Summerset at 88 degrees F.
Sunday Night is the coolest period ahead with temperatures near 55 degrees F.
The strongest winds are forecast for Wednesday at about 10 to 20 mph S.
Precipitation is mentioned in 13 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 8, 2026 3:20 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- LOT
- Radar station
- KMKX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Showers and thunderstorms before 4am. Mostly cloudy, with a low around 69. South wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Partly sunny, with a high near 86. West wind 5 to 10 mph.
A chance of showers and thunderstorms after 7pm. Mostly cloudy, with a low around 71. South wind 5 to 10 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 40%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 70. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Showers and thunderstorms likely. Mostly sunny, with a high near 84. Chance of precipitation is 60%.
Showers and thunderstorms likely before 1am. Partly cloudy, with a low around 60. Chance of precipitation is 60%.
A slight chance of rain showers after 1pm. Sunny, with a high near 84.
A slight chance of rain showers before 7pm, then a chance of showers and thunderstorms. Mostly clear, with a low around 61. Chance of precipitation is 30%.
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 83. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 59. Chance of precipitation is 50%.
A chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 79. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 55.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Jun 8
|
Showers And Thunderstorms
|
79°F |
10 to 15 mph
SE
|
|
Tonight
Jun 8
|
Showers And Thunderstorms
|
69°F |
5 to 10 mph
S
|
|
Tuesday
Jun 9
|
Partly Sunny
|
86°F |
5 to 10 mph
W
|
|
Tuesday Night
Jun 9
|
Chance Showers And Thunderstorms
|
71°F |
5 to 10 mph
S
|
|
Wednesday
Jun 10
|
Chance Showers And Thunderstorms
|
88°F |
10 to 20 mph
S
|
|
Wednesday Night
Jun 10
|
Showers And Thunderstorms Likely
|
70°F |
10 to 20 mph
SW
|
|
Thursday
Jun 11
|
Showers And Thunderstorms Likely
|
84°F |
10 to 15 mph
SW
|
|
Thursday Night
Jun 11
|
Showers And Thunderstorms Likely
|
60°F |
5 to 15 mph
W
|
|
Friday
Jun 12
|
Sunny then Slight Chance Rain Showers
|
84°F |
10 to 15 mph
W
|
|
Friday Night
Jun 12
|
Chance Showers And Thunderstorms
|
61°F |
5 to 15 mph
SW
|
|
Saturday
Jun 13
|
Chance Rain Showers
|
83°F |
5 to 15 mph
SW
|
|
Saturday Night
Jun 13
|
Chance Showers And Thunderstorms
|
59°F |
5 to 10 mph
W
|
|
Sunday
Jun 14
|
Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
79°F |
5 to 10 mph
N
|
|
Sunday Night
Jun 14
|
Slight Chance Showers And Thunderstorms
|
55°F |
5 to 10 mph
N
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Lake Summerset.