Summum, IL 7-Day Weather Forecast

Feedback E-mail the Weather

Quick Weather Clicks

Summum, IL 7-Day Weather Forecast

Current Conditions

Settings
Summum IL weather  - Clear - 25°F
Clear
25°F
Updated 1:36 am
Feels Like 27°F
Humidity 92%
Wind N 0 mph
Barometer  30.39 in
Dew Point 23°F
Summum IL weather  - Clear - -4°C
Clear
-4°C
Updated 1:36 am
Feels Like -3°C
Humidity 92%
Wind N 0 km/h
Barometer  102.9 kPa
Dew Point -5°C
Weather in SummumSummum Weather

Summum Weather Forecast

Weather SummumSummum weather forecast

Summum, IL Weather Forecast Date: 1227 AM CST Sun Nov 15 2026

Weather forecast for Summum, IL


Tonight
Summum IL Weather for Tonight - Clear
Lo: 29°F
Lo: -2°C
Tonight... Clear. Near steady temperature in the upper 20s. Light and variable winds.
Sun
Summum IL Weather for Sunday - Mostly Sunny
Hi: 51°FHi: 11°C
Lo: 29°F
Lo: -2°C
Sunday... Mostly sunny. Highs in the lower 50s. Light and variable winds.
Mon
Summum IL Weather for Monday - Sunny
Hi: 55°FHi: 13°C
Lo: 31°F
Lo: -1°C
Monday... Sunny. Highs in the mid 50s. South winds around 5 mph.
Tue
Summum IL Weather for Tuesday - Sunny
Hi: 59°FHi: 15°C
Lo: 35°F
Lo: 2°C
Tuesday... Sunny. Highs in the upper 50s.
Wed
Summum IL Weather for Wednesday - Partly Cloudy
Hi: 61°FHi: 16°C
Lo: 45°F
Lo: 7°C
Wednesday... Partly cloudy. Highs in the lower 60s. Lows in the mid 40s.
Thu
Summum IL Weather for Thursday - Partly Cloudy
Hi: 61°FHi: 16°C
Lo: 45°F
Lo: 7°C
Thursday... Partly cloudy. Highs in the lower 60s. Lows in the mid 40s.
Fri
Summum IL Weather for Friday - Partly Cloudy
Hi: 61°FHi: 16°C
Lo: 45°F
Lo: 7°C
Friday... Partly cloudy. Highs in the lower 60s. Lows in the mid 40s.
Fri
Summum IL Weather for Friday - Partly Cloudy
Hi: 61°FHi: 16°C
Lo: 50°F
Lo: 10°C
Friday... Partly cloudy. Highs in the lower 60s. Lows in the mid 40s.

Trending Headlines

Summum Radar Loop

Use the map search tool if you want to place a location marker on the radar map...

Summum Quick Facts

National Two Day Weather Forecast

E-mail the Summum Weather Forecast

Voice your opinion or tell us about page issues...