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 93.
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: Jul 11, 2026 8:50 PM CDT.
The active forecast window currently covers Jul 14 to Jul 18, 2026 for South Beloit, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 14 to Jul 18, 2026
- Latest sync
- Jul 11, 2026 8:50 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 93 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 68 degrees F.
The strongest winds are forecast for Saturday at about 5 to 15 mph SW.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 11, 2026 8:50 PM CDT
- Coverage
- 5 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
Clear, with a low around 70.
Sunny, with a high near 92.
Mostly clear, with a low around 68.
Sunny, with a high near 89.
Partly cloudy, with a low around 69.
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88.
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 69.
A slight chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jul 14
|
Sunny
|
93°F |
0 to 5 mph
NW
|
|
Tuesday Night
Jul 14
|
Clear
|
70°F |
0 to 5 mph
WNW
|
|
Wednesday
Jul 15
|
Sunny
|
92°F |
0 to 5 mph
WNW
|
|
Wednesday Night
Jul 15
|
Mostly Clear
|
68°F |
0 to 5 mph
SW
|
|
Thursday
Jul 16
|
Sunny
|
89°F |
0 to 5 mph
SW
|
|
Thursday Night
Jul 16
|
Partly Cloudy
|
69°F |
0 to 5 mph
SSW
|
|
Friday
Jul 17
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
88°F |
0 to 10 mph
SW
|
|
Friday Night
Jul 17
|
Slight Chance Showers And Thunderstorms
|
69°F |
5 to 10 mph
SSW
|
|
Saturday
Jul 18
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
87°F |
5 to 15 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around South Beloit.