South Beloit, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for South Beloit, IL in one place.
Sunny, with a high near 79. West wind 5 to 10 mph, with gusts as high as 20 mph.
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: Oct 11, 2026 9:16 PM CDT.
The active forecast window currently covers Oct 13 to Oct 18, 2026 for South Beloit, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 13 to Oct 18, 2026
- Latest sync
- Oct 11, 2026 9:16 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in South Beloit
Tuesday looks like the warmest upcoming period in South Beloit at 79 degrees F.
Friday Night is the coolest period ahead with temperatures near 33 degrees F.
The strongest winds are forecast for Friday at about 20 to 25 mph NW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 11, 2026 9:16 PM CDT
- 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
Rain showers likely after 7pm. Partly cloudy, with a low around 57. North northwest wind 0 to 5 mph. Chance of precipitation is 60%.
A chance of rain showers before 1pm. Mostly cloudy, with a high near 68. Chance of precipitation is 50%.
A slight chance of rain showers after 1am. Mostly cloudy, with a low around 51.
Rain showers likely. Mostly cloudy, with a high near 64.
Rain showers likely. Mostly cloudy, with a low around 47.
A slight chance of rain showers before 7am. Mostly cloudy, with a high near 57.
Partly cloudy, with a low around 33.
Sunny, with a high near 53.
Mostly clear, with a low around 34.
Sunny, with a high near 60.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Oct 13
|
Sunny
|
79°F |
5 to 10 mph
W
|
|
Tuesday Night
Oct 13
|
Rain Showers Likely
|
57°F |
0 to 5 mph
NNW
|
|
Wednesday
Oct 14
|
Chance Rain Showers
|
68°F |
5 to 10 mph
NNE
|
|
Wednesday Night
Oct 14
|
Mostly Cloudy then Slight Chance Rain Showers
|
51°F |
5 to 10 mph
NE
|
|
Thursday
Oct 15
|
Rain Showers Likely
|
64°F |
10 to 15 mph
E
|
|
Thursday Night
Oct 15
|
Rain Showers Likely
|
47°F |
5 to 15 mph
ENE
|
|
Friday
Oct 16
|
Slight Chance Rain Showers then Mostly Cloudy
|
57°F |
20 to 25 mph
NW
|
|
Friday Night
Oct 16
|
Partly Cloudy
|
33°F |
10 to 20 mph
NW
|
|
Saturday
Oct 17
|
Sunny
|
53°F |
5 to 10 mph
NW
|
|
Saturday Night
Oct 17
|
Mostly Clear
|
34°F |
0 to 5 mph
WSW
|
|
Sunday
Oct 18
|
Sunny
|
60°F |
5 to 15 mph
SSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around South Beloit.