South Beloit, IL Weather Forecast
Local 7-day forecast
Chance Rain Showers then Partly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for South Beloit, IL in one place.
A chance of rain showers before noon. Partly sunny, with a high near 42. North wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 40%.
Local Weather Overview
This forecast page for South Beloit, 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 11, 2026 4:58 AM CST.
The active forecast window currently covers Nov 12 to Nov 17, 2026 for South Beloit, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 12 to Nov 17, 2026
- Latest sync
- Nov 11, 2026 4:58 AM CST
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in South Beloit
Tuesday looks like the warmest upcoming period in South Beloit at 51 degrees F.
Friday Night is the coolest period ahead with temperatures near 22 degrees F.
The strongest winds are forecast for Thursday at about 15 to 20 mph N.
Precipitation is mentioned in 1 upcoming forecast period.
Forecast Details
- Last updated
- Nov 11, 2026 4:58 AM CST
- Coverage
- 6 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
Partly cloudy, with a low around 28. North northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Sunny, with a high near 42.
Mostly clear, with a low around 22.
Sunny, with a high near 44.
Mostly clear, with a low around 23.
Sunny, with a high near 47.
Partly cloudy, with a low around 25.
Mostly sunny, with a high near 48.
Mostly clear, with a low around 27.
Sunny, with a high near 51.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Nov 12
|
Chance Rain Showers then Partly Sunny
|
42°F |
15 to 20 mph
N
|
|
Thursday Night
Nov 12
|
Partly Cloudy
|
28°F |
5 to 10 mph
NNW
|
|
Friday
Nov 13
|
Sunny
|
42°F |
10 to 15 mph
NNW
|
|
Friday Night
Nov 13
|
Mostly Clear
|
22°F |
0 to 5 mph
NNW
|
|
Saturday
Nov 14
|
Sunny
|
44°F |
0 to 5 mph
N
|
|
Saturday Night
Nov 14
|
Mostly Clear
|
23°F |
0 mph
|
|
Sunday
Nov 15
|
Sunny
|
47°F |
0 mph
|
|
Sunday Night
Nov 15
|
Partly Cloudy
|
25°F |
0 mph
|
|
Monday
Nov 16
|
Mostly Sunny
|
48°F |
0 to 5 mph
S
|
|
Monday Night
Nov 16
|
Mostly Clear
|
27°F |
0 mph
|
|
Tuesday
Nov 17
|
Sunny
|
51°F |
0 to 5 mph
SSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around South Beloit.