National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Detroit, Willow Run Airport (KYIP)

Lat: 42.24°NLon: 83.53°WElev: 715ft.

Fair

76°F

24°C

Humidity 48%
Wind Speed SE 10 mph
Barometer 30.00 in (1015.4 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 11 Sep 4:53 pm EDT
Extended Forecast for

South Lyon MI

  • Tonight

    Tonight: Mostly clear, with a low around 58. Southeast wind around 6 mph.

    Low: 58 °F

    Mostly Clear

  • Saturday

    Saturday: A slight chance of showers between 1pm and 2pm. Mostly sunny, with a high near 81. South southeast wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 20%.

    High: 81 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 62. West wind around 6 mph.

    Low: 62 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 78. Light northwest wind becoming west northwest 5 to 10 mph in the morning. Winds could gust as high as 18 mph.

    High: 78 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 51. North northwest wind 7 to 11 mph, with gusts as high as 21 mph.

    Low: 51 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of showers before 2pm. Partly sunny, with a high near 81.

    High: 81 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then showers likely after 2am. Mostly cloudy, with a low around 62.

    Low: 62 °F

    Showers
    Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 58. Southeast wind around 6 mph.
Saturday
A slight chance of showers between 1pm and 2pm. Mostly sunny, with a high near 81. South southeast wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 62. West wind around 6 mph.
Sunday
Mostly sunny, with a high near 78. Light northwest wind becoming west northwest 5 to 10 mph in the morning. Winds could gust as high as 18 mph.
Sunday Night
Partly cloudy, with a low around 51. North northwest wind 7 to 11 mph, with gusts as high as 21 mph.
Monday
Mostly sunny, with a high near 70.
Monday Night
Mostly cloudy, with a low around 56.
Tuesday
A chance of showers before 2pm. Partly sunny, with a high near 81.
Tuesday Night
A chance of thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then showers likely after 2am. Mostly cloudy, with a low around 62.
Wednesday
Showers likely, mainly before 2pm. Mostly cloudy, with a high near 74.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 59.
Thursday
Showers likely. Partly sunny, with a high near 72.
Thursday Night
A chance of showers. Partly cloudy, with a low around 54.
Friday
A chance of showers. Mostly sunny, with a high near 72.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Lyon MI
 42.46°N 83.65°W (Elev. 942 ft)
Last Update:
4:24 pm EDT Sep 11, 2026
Forecast Valid:
5pm EDT Sep 11, 2026-6pm EDT Sep 18, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation