What is the weather in South Lyon, MI 48178 right now?

The latest observation from Detroit, Willow Run Airport was 50°F and clear, reported at 10/28/2026, 12:55 AM EDT.

What is the high temperature today in South Lyon, MI 48178?

The National Weather Service forecast for wednesday calls for a high near 71°F. Areas Of Fog then Mostly Sunny.

Will it rain in South Lyon, MI 48178 in the next 24 hours?

The NWS hourly forecast does not show any hour with a 50% or higher chance of precipitation in the next 24 hours.

What is the 10-day forecast for South Lyon, MI 48178?

The first 7 days come from the National Weather Service forecast. Days 8 to 10 (Nov 4 to Nov 6) come from the NOAA National Blend of Models, with highs of 59°F to 62°F and up to a 48% chance of precipitation. Model guidance this far out often changes.

What time is sunrise and sunset in South Lyon, MI 48178 today?

Sunrise is about 8:03 AM EDT and sunset is about 6:33 PM EDT (calculated for the center of the area, within a few minutes).

What is the normal October weather in South Lyon, MI 48178?

At Whitmore Lake 1nw, the 1991 to 2020 normal high in October is 60°F and the normal low is 40°F.

Checked Oct 27, 2026

South Lyon, MI 48178 Weather

It is 50°F and clear in South Lyon, MI 48178, observed at 12:55 AM EDT. Today: Areas Of Fog then Mostly Sunny, high 71°F, low 47°F. Hourly and 10-day forecast from the National Weather Service. Times are local (EDT).

South Lyon, MI 48178 current weather

50°F

Clear

H 71° / L 47°Feels like 48°

Wildfire smoke overhead: light
No rain expected in the next 12 hours

Observed at Detroit, Willow Run Airport (16.3 mi away), 10/28/2026, 12:55 AM EDT

Hourly forecast

NWS, updated 10/27/2026, 6:49 PM PT

Now48°
2 AM47°
3 AM48°
4 AM48°
5 AM48°
6 AM49°
7 AM49°
8 AM48°
9 AM50°
10 AM55°
11 AM60°
12 PM64°
1 PM68°
2 PM70°
3 PM71°
4 PM71°
5 PM71°
6 PM68°
7 PM64°
8 PM58°
9 PM56°
10 PM54°
11 PM52°
Thu12 AM52°
1 AM51°
2 AM51°
3 AM51°
4 AM51°
5 AM51°
6 AM52°
7 AM52°
8 AM52°
9 AM55°
10 AM59°
11 AM65°
12 PM69°
1 PM71°
2 PM72°21%
3 PM72°21%
4 PM72°21%
5 PM70°21%
6 PM67°21%
7 PM64°21%
8 PM60°
9 PM58°
10 PM56°
11 PM54°
Fri12 AM52°

10-day forecast

Tap a day for details

Today10/28Low 47°High 71°
Wednesday: Areas of fog before 10am. Mostly sunny, with a high near 71. South southwest wind 2 to 7 mph.
Overnight: Areas of fog after 2am. Mostly cloudy, with a low around 47. Southeast wind around 6 mph.
Areas Of Fog then Mostly Sunny
Thu10/2921% chance of precipitationLow 41°High 72°
Thursday: A slight chance of rain after 2pm. Mostly sunny, with a high near 72. Southwest wind 8 to 16 mph, with gusts as high as 25 mph.
Thursday Night: A slight chance of rain before 8pm. Partly cloudy, with a low around 41. West northwest wind 5 to 13 mph, with gusts as high as 23 mph.
Mostly Sunny then Slight Chance Light Rain
Fri10/3011% chance of precipitationLow 44°High 64°
Friday: Sunny, with a high near 64.
Friday Night: Partly cloudy, with a low around 44.
Sunny
Sat10/3111% chance of precipitationLow 46°High 61°
Saturday: Mostly cloudy, with a high near 61.
Saturday Night: Mostly cloudy, with a low around 46.
Mostly Cloudy
Sun11/138% chance of precipitationLow 48°High 64°
Sunday: A chance of rain after 1pm. Mostly cloudy, with a high near 64.
Sunday Night: A chance of rain. Mostly cloudy, with a low around 48.
Mostly Cloudy then Chance Light Rain
Mon11/238% chance of precipitationLow 47°High 65°
Monday: A chance of rain. Mostly cloudy, with a high near 65.
Monday Night: A chance of rain. Mostly cloudy, with a low around 47.
Chance Light Rain
Tue11/344% chance of precipitationLow High 61°
Tuesday: A chance of rain. Mostly cloudy, with a high near 61.
Chance Light Rain
Model blend
Wed11/4Model blend48% chance of precipitationLow 45°High 62°
Wednesday: Chance of rain. High near 62°. Low that night near 45°. About 0.27 in of precipitation.
Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.
Thu11/5Model blend40% chance of precipitationLow 39°High 60°
Thursday: Chance of rain. High near 60°. Low that night near 39°.
Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.
Fri11/6Model blend16% chance of precipitationLow High 59°
Friday: Mostly cloudy, slight chance of rain. High near 59°.
Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

Forecast for 42.442, -83.685 from the NWS DTX office, updated 10/27/2026, 6:49 PM PT · Official forecast on weather.gov

Days 8 to 10: NOAA National Blend of Models, station KARB (Ann Arbor Muni, 15 mi), model run 10/27/2026, 7:00 PM EDT

From the National Weather Service; may be delayed. Not for life-safety decisions. In an emergency, call 911.

Next 6 hours

NWS hourly forecast

Now48°Mostly Cloudy1%6 mph
2 AM47°Areas Of Fog1%5 mph
3 AM48°Areas Of Fog1%5 mph
4 AM48°Areas Of Fog1%3 mph
5 AM48°Areas Of Fog1%3 mph
6 AM49°Areas Of Fog1%3 mph

Hourly details

Next 7 days: temperature chart, feels like, rain and snow amounts, sky cover, wind and gustsShow

Line: temperature °F. Bars: chance of precipitation.

WedNow48°1%6
2 AM47°1%5
3 AM48°1%5
4 AM48°1%3
5 AM48°1%3
6 AM49°1%3
7 AM49°1%2
8 AM48°2%2
9 AM50°2%3
10 AM55°2%3
11 AM60°2%3
12 PM64°2%5
1 PM68°2%5
2 PM70°2%6
3 PM71°2%7
4 PM71°1%7
5 PM71°1%7
6 PM68°1%5
7 PM64°1%6
8 PM58°0%5
9 PM56°0%5
10 PM54°0%5
11 PM52°0%5
Thu 10/2912 AM52°0%5
1 AM51°0%5
2 AM51°0%5
3 AM51°0%6
4 AM51°0%7
5 AM51°0%7
6 AM52°0%8
7 AM52°1%9
8 AM52°1%9
9 AM55°1%12
10 AM59°1%13
11 AM65°1%13
12 PM69°1%14
1 PM71°1%15
2 PM72°21%16
3 PM72°21%16
4 PM72°21%15
5 PM70°21%14
6 PM67°21%13
7 PM64°21%12
8 PM60°2%10
9 PM58°2%9
10 PM56°2%9
11 PM54°2%8
Fri 10/3012 AM52°2%7
1 AM50°2%7
2 AM48°0%6
3 AM46°0%6
4 AM45°0%5
5 AM43°0%5
6 AM42°0%5
7 AM41°0%3
8 AM41°0%3
9 AM44°0%3
10 AM48°0%3
11 AM53°0%3
12 PM57°0%3
1 PM60°0%3
2 PM62°1%3
3 PM64°1%3
4 PM64°1%3
5 PM63°1%3
6 PM60°1%3
7 PM56°1%2
8 PM56°7%2
9 PM54°7%2
10 PM52°7%2
11 PM50°7%2
Sat 10/3112 AM49°7%2
1 AM48°7%2
2 AM47°11%2
3 AM46°11%3
4 AM46°11%3
5 AM46°11%5
6 AM45°11%5
7 AM45°11%5
8 AM45°11%5
9 AM47°11%6
10 AM50°11%6
11 AM53°11%7
12 PM56°11%7
1 PM58°11%7
2 PM60°10%7
3 PM61°10%7
4 PM61°10%6
5 PM60°10%6
6 PM58°10%6
7 PM56°10%6
8 PM53°3%6
9 PM51°3%6
10 PM49°3%5
11 PM48°3%5
Sun 11/112 AM47°3%5
1 AM47°3%5
1 AM47°7%5
2 AM47°7%5
3 AM48°7%5
4 AM48°7%5
5 AM47°7%5
6 AM46°7%5
7 AM47°14%5
8 AM49°14%6
9 AM53°14%6
10 AM56°14%7
11 AM58°14%7
12 PM61°14%7
1 PM62°26%7
2 PM63°26%7
3 PM64°26%7
4 PM63°26%7
5 PM61°26%7
6 PM59°26%7
7 PM56°38%7
8 PM54°38%6
9 PM52°38%6
10 PM51°38%5
11 PM50°38%5
Mon 11/212 AM50°38%5
1 AM50°37%5
2 AM50°37%5
3 AM50°37%5
4 AM50°37%5
5 AM50°37%5
6 AM49°37%5
7 AM50°29%5
8 AM52°29%6
9 AM55°29%6
10 AM58°29%7
11 AM60°29%7
12 PM62°29%8
1 PM63°23%8
2 PM64°23%8
3 PM64°23%9
4 PM64°23%9
5 PM62°23%9
6 PM60°23%8
7 PM57°35%8
8 PM55°35%8
9 PM53°35%8
10 PM51°35%8
11 PM50°35%8
Tue 11/312 AM50°35%8
1 AM50°38%8
2 AM50°38%9
3 AM49°38%10
4 AM49°38%12
5 AM48°38%12
6 AM48°38%13
7 AM48°40%13
8 AM50°40%13
9 AM52°40%14
10 AM55°40%14
11 AM57°40%14

Temperature °F · chance of precipitation · wind in mph

NWS hourly forecast updated 10/27/2026, 6:49 PM PT

Radar and satellite

National radar

NEXRAD (last 50 min) and GOES

Latest

Nearby hazards

Michigan hazards

Severe storm and flash flood outlooks, expected rain, river flooding and wildfires near this area

Severe storm outlook today:No thunderstorm risk area over this locationOutlook map
Excessive rainfall outlook (flash flood risk):Could not check the Weather Prediction Center outlook right now.
River gauges within 40 miles at or above flood stage: None reported
Active wildfires within 50 miles: Genesee-01 Zacs Fire (4 acres)

Drought

By county

Livingston County, week of 10/20/2026

78% of the county is abnormally dry. No drought.

Sun and moon

Local time, center of the area

Sunrise: 8:03 AM
Sunset: 6:33 PM
Daylight: 10 hr 30 min
Moon: Waning Gibbous 95% lit

First light (civil dawn): 7:34 AM
Last light (civil dusk): 7:02 PM
Moonrise: 7:52 PM
Moonset: 11:12 AM

Normal October weather

Climate

Normal October high 60°, low 40°, precipitation 2.80 in for the month. 1991 to 2020 normals at Whitmore Lake 1nw, 5 mi away.

Other places nearby

Data sources

National Weather Service APINOAA
National Blend of Models (NBM) text guidanceNOAA National Weather Service
Convective Outlooks and Storm ReportsNOAA Storm Prediction Center
Excessive Rainfall Outlook and Quantitative Precipitation ForecastsNOAA Weather Prediction Center
National Water Prediction ServiceNOAA National Weather Service
WFIGS Current Wildland Fire IncidentsNational Interagency Fire Center
Hazard Mapping System Smoke AnalysisNOAA NESDIS Office of Satellite and Product Operations
UV Index Forecast (Envirofacts)U.S. Environmental Protection Agency and NOAA
AirNowU.S. Environmental Protection Agency
NWS HeatRisk (experimental)NOAA National Weather Service
U.S. Drought MonitorNational Drought Mitigation Center, USDA and NOAA
BEACON 2.0 Beach Advisory and Closing On-line NotificationU.S. Environmental Protection Agency
U.S. Climate Normals 1991-2020NOAA National Centers for Environmental Information
Tides & Currents (CO-OPS API)NOAA Center for Operational Oceanographic Products and Services
NEXRAD radar tilesIowa Environmental Mesonet, Iowa State University
GOES-East and GOES-West GeoColor imageryNOAA NESDIS Center for Satellite Applications and Research

See something wrong? Request a correction

Frequently asked questions

What is the weather in South Lyon, MI 48178 right now?: The latest observation from Detroit, Willow Run Airport was 50°F and clear, reported at 10/28/2026, 12:55 AM EDT.
What is the high temperature today in South Lyon, MI 48178?: The National Weather Service forecast for wednesday calls for a high near 71°F. Areas Of Fog then Mostly Sunny.
Will it rain in South Lyon, MI 48178 in the next 24 hours?: The NWS hourly forecast does not show any hour with a 50% or higher chance of precipitation in the next 24 hours.
What is the 10-day forecast for South Lyon, MI 48178?: The first 7 days come from the National Weather Service forecast. Days 8 to 10 (Nov 4 to Nov 6) come from the NOAA National Blend of Models, with highs of 59°F to 62°F and up to a 48% chance of precipitation. Model guidance this far out often changes.
What time is sunrise and sunset in South Lyon, MI 48178 today?: Sunrise is about 8:03 AM EDT and sunset is about 6:33 PM EDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in South Lyon, MI 48178?: At Whitmore Lake 1nw, the 1991 to 2020 normal high in October is 60°F and the normal low is 40°F.

About this data

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