South Lyon, MI Weather Forecast
Local 7-day forecast
Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for South Lyon, MI in one place.
Showers and thunderstorms. Mostly cloudy, with a high near 72. South southwest wind 8 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Local Weather Overview
This forecast page for South Lyon, MI 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: Apr 15, 2026 7:26 AM EDT.
The active forecast window currently covers Apr 16 to Apr 21, 2026 for South Lyon, MI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 16 to Apr 21, 2026
- Latest sync
- Apr 15, 2026 7:26 AM EDT
- Forecast office
- DTX
- Source
- NOAA / NWS
Daily Outlook
This Week in South Lyon
Thursday looks like the warmest upcoming period in South Lyon at 72 degrees F.
Sunday Night is the coolest period ahead with temperatures near 28 degrees F.
The strongest winds are forecast for Saturday at about 12 to 20 mph SSW.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 15, 2026 7:26 AM EDT
- Coverage
- 6 days
- Time zone
- America/Detroit
- Forecast office
- DTX
- Radar station
- KDTX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Showers and thunderstorms before 2am. Mostly cloudy, with a low around 50. West northwest wind 6 to 12 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Mostly sunny, with a high near 71.
Showers and thunderstorms likely after 2am. Mostly cloudy, with a low around 54.
Showers and thunderstorms before 2pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 71.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 36.
A chance of rain showers before 8am, then a slight chance of snow showers. Partly sunny, with a high near 47.
A slight chance of snow showers before 8pm. Partly cloudy, with a low around 28.
Sunny, with a high near 52.
Mostly clear, with a low around 36.
Mostly sunny, with a high near 67.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Apr 16
|
Showers And Thunderstorms
|
72°F |
8 to 14 mph
SSW
|
|
Thursday Night
Apr 16
|
Showers And Thunderstorms
|
50°F |
6 to 12 mph
WNW
|
|
Friday
Apr 17
|
Mostly Sunny
|
71°F |
5 to 8 mph
NE
|
|
Friday Night
Apr 17
|
Mostly Cloudy then Showers And Thunderstorms Likely
|
54°F |
10 mph
SSE
|
|
Saturday
Apr 18
|
Showers And Thunderstorms
|
71°F |
12 to 20 mph
SSW
|
|
Saturday Night
Apr 18
|
Chance Showers And Thunderstorms
|
36°F |
14 to 18 mph
W
|
|
Sunday
Apr 19
|
Slight Chance Snow Showers
|
47°F |
14 to 20 mph
W
|
|
Sunday Night
Apr 19
|
Slight Chance Snow Showers then Partly Cloudy
|
28°F |
8 to 18 mph
WNW
|
|
Monday
Apr 20
|
Sunny
|
52°F |
8 to 12 mph
WNW
|
|
Monday Night
Apr 20
|
Mostly Clear
|
36°F |
9 mph
SSW
|
|
Tuesday
Apr 21
|
Mostly Sunny
|
67°F |
8 to 16 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around South Lyon.
