Summum, IL Weather Forecast
Local 7-day forecast
Chance Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Summum, IL in one place.
A chance of rain showers. Partly sunny. High near 60, with temperatures falling to around 54 in the afternoon. West southwest wind 2 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Local Weather Overview
This forecast page for Summum, 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: Nov 9, 2026 10:11 PM CST.
The active forecast window currently covers Nov 11 to Nov 16, 2026 for Summum, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 11 to Nov 16, 2026
- Latest sync
- Nov 9, 2026 10:11 PM CST
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Summum
Veterans Day looks like the warmest upcoming period in Summum at 60 degrees F.
Friday Night is the coolest period ahead with temperatures near 26 degrees F.
The strongest winds are forecast for Thursday at about 14 mph NNW.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Nov 9, 2026 10:11 PM CST
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- ILX
- Radar station
- KILX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 38. North northwest wind around 13 mph, with gusts as high as 23 mph.
Partly sunny, with a high near 47. North northwest wind around 14 mph, with gusts as high as 23 mph.
Partly cloudy, with a low around 28. North northwest wind 6 to 12 mph, with gusts as high as 20 mph.
Sunny, with a high near 44.
Mostly clear, with a low around 26.
Sunny, with a high near 49.
Mostly clear, with a low around 31.
A slight chance of rain. Mostly sunny, with a high near 54.
Partly cloudy, with a low around 38.
Mostly sunny, with a high near 59.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Veterans Day
Nov 11
|
Chance Rain Showers
|
60°F |
2 to 13 mph
WSW
|
|
Wednesday Night
Nov 11
|
Partly Cloudy
|
38°F |
13 mph
NNW
|
|
Thursday
Nov 12
|
Partly Sunny
|
47°F |
14 mph
NNW
|
|
Thursday Night
Nov 12
|
Partly Cloudy
|
28°F |
6 to 12 mph
NNW
|
|
Friday
Nov 13
|
Sunny
|
44°F |
6 to 9 mph
NNW
|
|
Friday Night
Nov 13
|
Mostly Clear
|
26°F |
0 to 3 mph
NNW
|
|
Saturday
Nov 14
|
Sunny
|
49°F |
2 mph
NW
|
|
Saturday Night
Nov 14
|
Mostly Clear
|
31°F |
0 to 3 mph
E
|
|
Sunday
Nov 15
|
Slight Chance Light Rain
|
54°F |
3 to 7 mph
SSE
|
|
Sunday Night
Nov 15
|
Partly Cloudy
|
38°F |
5 mph
SSE
|
|
Monday
Nov 16
|
Mostly Sunny
|
59°F |
6 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Summum.