South Byron, WI Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for South Byron, WI in one place.
Mostly sunny. High near 58, with temperatures falling to around 50 in the afternoon. Northwest wind 5 to 10 mph.
Local Weather Overview
This forecast page for South Byron, WI 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 4:34 AM CST.
The active forecast window currently covers Nov 10 to Nov 15, 2026 for South Byron, WI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 10 to Nov 15, 2026
- Latest sync
- Nov 9, 2026 4:34 AM CST
- Forecast office
- MKX
- Source
- NOAA / NWS
Daily Outlook
This Week in South Byron
Tuesday looks like the warmest upcoming period in South Byron at 58 degrees F.
Friday Night is the coolest period ahead with temperatures near 26 degrees F.
The strongest winds are forecast for Thursday at about 15 to 20 mph N.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Nov 9, 2026 4:34 AM CST
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- MKX
- Radar station
- KMKX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly cloudy, with a low around 38. West wind 0 to 5 mph.
A chance of rain showers. Mostly cloudy. High near 51, with temperatures falling to around 44 in the afternoon. North wind 0 to 10 mph. Chance of precipitation is 40%.
A slight chance of rain showers. Mostly cloudy, with a low around 32. North wind 5 to 15 mph. Chance of precipitation is 20%.
A slight chance of rain showers before noon. Partly sunny. High near 42, with temperatures falling to around 37 in the afternoon. North wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Mostly cloudy, with a low around 28.
Mostly sunny. High near 42, with temperatures falling to around 37 in the afternoon.
Mostly clear, with a low around 26.
Sunny. High near 46, with temperatures falling to around 39 in the afternoon.
Mostly clear, with a low around 31.
Sunny. High near 51, with temperatures falling to around 46 in the afternoon.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Nov 10
|
Mostly Sunny
|
58°F |
5 to 10 mph
NW
|
|
Tuesday Night
Nov 10
|
Mostly Cloudy
|
38°F |
0 to 5 mph
W
|
|
Veterans Day
Nov 11
|
Chance Rain Showers
|
51°F |
0 to 10 mph
N
|
|
Wednesday Night
Nov 11
|
Slight Chance Rain Showers
|
32°F |
5 to 15 mph
N
|
|
Thursday
Nov 12
|
Slight Chance Rain Showers then Partly Sunny
|
42°F |
15 to 20 mph
N
|
|
Thursday Night
Nov 12
|
Mostly Cloudy
|
28°F |
10 to 15 mph
N
|
|
Friday
Nov 13
|
Mostly Sunny
|
42°F |
10 to 15 mph
N
|
|
Friday Night
Nov 13
|
Mostly Clear
|
26°F |
5 mph
NW
|
|
Saturday
Nov 14
|
Sunny
|
46°F |
5 mph
NW
|
|
Saturday Night
Nov 14
|
Mostly Clear
|
31°F |
0 mph
|
|
Sunday
Nov 15
|
Sunny
|
51°F |
0 to 5 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around South Byron.