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As of 14:35 EST

Weather in South Lyon, MI

55°Current weather

South Lyon, Wednesday, 11 November, 14:35

Overcast. Feels like 53°. High 55°, low 36°.

Pressure29.83 inHg
Wind1 mph NE
Humidity60%
Visibility6.2 mi
Dew point41°
Thu, 1247° / 32°0.14Rain
47 °Rain

South Lyon, Thursday, 12 November

Rain. High 47°, low 32°.

Pressure29.77 inHg
Wind6.4 mph N
Humidity97%
Visibility4.0 mi
Dew point42°
Fri, 1340° / 32°0.02Snow
40 °Snow

South Lyon, Friday, 13 November

Snow. High 40°, low 32°.

Pressure29.94 inHg
Wind11.1 mph N
Humidity78%
Visibility6.2 mi
Dew point31°
Sat, 1442° / 28°0Overcast
42 °Overcast

South Lyon, Saturday, 14 November

Overcast. High 42°, low 28°.

Pressure30.12 inHg
Wind9.1 mph NW
Humidity70%
Visibility6.2 mi
Dew point30°
Sun, 1543° / 34°0.01Light rain
43 °Light rain

South Lyon, Sunday, 15 November

Light rain. High 43°, low 34°.

Pressure30.39 inHg
Wind8.7 mph NW
Humidity74%
Visibility6.2 mi
Dew point34°
Mon, 1645° / 37°0Overcast
45 °Overcast

South Lyon, Monday, 16 November

Overcast. High 45°, low 37°.

Pressure30.50 inHg
Wind3.8 mph N
Humidity59%
Visibility—
Dew point30°
Tue, 1746° / 34°0Clear
46 °Clear

South Lyon, Tuesday, 17 November

Clear. High 46°, low 34°.

Pressure30.39 inHg
Wind4.8 mph E
Humidity47%
Visibility—
Dew point25°
Wed, 1848° / 33°0Clear
48 °Clear

South Lyon, Wednesday, 18 November

Clear. High 48°, low 33°.

Pressure30.30 inHg
Wind6.9 mph NE
Humidity50%
Visibility—
Dew point28°
Thu, 1949° / 34°0Overcast
49 °Overcast

South Lyon, Thursday, 19 November

Overcast. High 49°, low 34°.

Pressure30.12 inHg
Wind7.7 mph SE
Humidity54%
Visibility—
Dew point31°
Fri, 2055° / 40°0Overcast
55 °Overcast

South Lyon, Friday, 20 November

Overcast. High 55°, low 40°.

Pressure29.83 inHg
Wind13 mph SW
Humidity55%
Visibility—
Dew point37°
Sat, 2154° / 44°0.34Rain
54 °Rain

South Lyon, Saturday, 21 November

Rain. High 54°, low 44°.

Pressure29.38 inHg
Wind24.1 mph SW
Humidity70%
Visibility—
Dew point43°
Sun, 2241° / 35°0.04Snow
41 °Snow

South Lyon, Sunday, 22 November

Snow. High 41°, low 35°.

Pressure29.97 inHg
Wind16.7 mph W
Humidity63%
Visibility—
Dew point28°
Mon, 2337° / 31°0.02Light snow
37 °Light snow

South Lyon, Monday, 23 November

Light snow. High 37°, low 31°.

Pressure30.21 inHg
Wind10.2 mph W
Humidity63%
Visibility—
Dew point25°
Tue, 2443° / 29°0Partly cloudy
43 °Partly cloudy

South Lyon, Tuesday, 24 November

Partly cloudy. High 43°, low 29°.

Pressure30.18 inHg
Wind15.6 mph SW
Humidity51%
Visibility—
Dew point24°
Wed, 2540° / 37°0.15Light rain
40 °Light rain

South Lyon, Wednesday, 25 November

Light rain. High 40°, low 37°.

Pressure30.15 inHg
Wind9.8 mph SW
Humidity95%
Visibility—
Dew point37°
Thu, 2644° / 38°0.1Light rain
44 °Light rain

South Lyon, Thursday, 26 November

Light rain. High 44°, low 38°.

Pressure29.97 inHg
Wind8.1 mph SE
Humidity67%
Visibility—
Dew point33°

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for South Lyon, MI are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in South Lyon, MI since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.