South Lyon, MI Weather Forecast
Local 7-day forecast
Chance Light Rain
Track current conditions, temperature changes, wind, and the full daily outlook for South Lyon, MI in one place.
A chance of rain after 4pm. Mostly cloudy. High near 64, with temperatures falling to around 61 in the afternoon. East southeast wind around 9 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an 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: Oct 15, 2026 3:52 PM EDT.
The active forecast window currently covers Oct 15 to Oct 21, 2026 for South Lyon, MI.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 15 to Oct 21, 2026
- Latest sync
- Oct 15, 2026 3:52 PM EDT
- Forecast office
- DTX
- Source
- NOAA / NWS
Daily Outlook
This Week in South Lyon
Tuesday looks like the warmest upcoming period in South Lyon at 66 degrees F.
Friday Night is the coolest period ahead with temperatures near 33 degrees F.
The strongest winds are forecast for Friday at about 16 to 20 mph WNW.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 15, 2026 3:52 PM EDT
- Coverage
- 7 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
Rain before 11pm, then rain and a slight chance of thunderstorms. Cloudy. Low around 52, with temperatures rising to around 59 overnight. South wind 9 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch possible.
Rain likely. Mostly cloudy. High near 58, with temperatures falling to around 53 in the afternoon. West northwest wind 16 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
A chance of rain before 7pm. Mostly cloudy, with a low around 33. North northwest wind 14 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Sunny, with a high near 52. Northwest wind 7 to 13 mph, with gusts as high as 20 mph.
Clear, with a low around 35.
Sunny, with a high near 62.
Mostly clear, with a low around 37.
Sunny, with a high near 65.
Partly cloudy, with a low around 40.
Mostly sunny, with a high near 66.
Mostly clear, with a low around 41.
Sunny, with a high near 66.
Mostly clear, with a low around 43.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Oct 15
|
Chance Light Rain
|
64°F |
9 mph
ESE
|
|
Tonight
Oct 15
|
Rain
|
52°F |
9 to 18 mph
S
|
|
Friday
Oct 16
|
Light Rain Likely
|
58°F |
16 to 20 mph
WNW
|
|
Friday Night
Oct 16
|
Chance Light Rain then Mostly Cloudy
|
33°F |
14 to 20 mph
NNW
|
|
Saturday
Oct 17
|
Sunny
|
52°F |
7 to 13 mph
NW
|
|
Saturday Night
Oct 17
|
Clear
|
35°F |
7 mph
WSW
|
|
Sunday
Oct 18
|
Sunny
|
62°F |
7 to 13 mph
SW
|
|
Sunday Night
Oct 18
|
Mostly Clear
|
37°F |
6 to 12 mph
SW
|
|
Monday
Oct 19
|
Sunny
|
65°F |
8 mph
SW
|
|
Monday Night
Oct 19
|
Partly Cloudy
|
40°F |
2 to 7 mph
WSW
|
|
Tuesday
Oct 20
|
Mostly Sunny
|
66°F |
5 mph
WNW
|
|
Tuesday Night
Oct 20
|
Mostly Clear
|
41°F |
1 to 5 mph
ENE
|
|
Wednesday
Oct 21
|
Sunny
|
66°F |
1 to 6 mph
ESE
|
|
Wednesday Night
Oct 21
|
Mostly Clear
|
43°F |
6 mph
SSE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around South Lyon.
