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As of 01:25 EDT

Weather in South Lyon, MI

51°Current weather

South Lyon, Sunday, 1 November, 01:25

Overcast. Feels like 50°. High 67°, low 44°.

Pressure30.42 inHg
Wind1 mph E
Humidity85%
Visibility6.2 mi
Dew point46°
Mon, 0262° / 45°0Overcast
62 °Overcast

South Lyon, Monday, 2 November

Overcast. High 62°, low 45°.

Pressure30.24 inHg
Wind8.8 mph S
Humidity68%
Visibility6.2 mi
Dew point48°
Tue, 0369° / 55°0.05Light rain
69 °Light rain

South Lyon, Tuesday, 3 November

Light rain. High 69°, low 55°.

Pressure30.03 inHg
Wind10.3 mph S
Humidity73%
Visibility6.2 mi
Dew point56°
Wed, 0464° / 59°0.09Light rain
64 °Light rain

South Lyon, Wednesday, 4 November

Light rain. High 64°, low 59°.

Pressure29.83 inHg
Wind11 mph SE
Humidity78%
Visibility6.2 mi
Dew point57°
Thu, 0559° / 50°0Overcast
59 °Overcast

South Lyon, Thursday, 5 November

Overcast. High 59°, low 50°.

Pressure29.68 inHg
Wind12.6 mph SW
Humidity67%
Visibility—
Dew point47°
Fri, 0656° / 50°0.38Light rain
56 °Light rain

South Lyon, Friday, 6 November

Light rain. High 56°, low 50°.

Pressure29.74 inHg
Wind11.2 mph W
Humidity81%
Visibility—
Dew point50°
Sat, 0750° / 43°0.09Light rain
50 °Light rain

South Lyon, Saturday, 7 November

Light rain. High 50°, low 43°.

Pressure29.50 inHg
Wind12.6 mph W
Humidity87%
Visibility—
Dew point45°
Sun, 0847° / 43°0.45Rain
47 °Rain

South Lyon, Sunday, 8 November

Rain. High 47°, low 43°.

Pressure29.41 inHg
Wind15.9 mph NW
Humidity80%
Visibility—
Dew point40°
Mon, 0945° / 42°0Overcast
45 °Overcast

South Lyon, Monday, 9 November

Overcast. High 45°, low 42°.

Pressure29.59 inHg
Wind21.2 mph NW
Humidity74%
Visibility—
Dew point36°
Tue, 1048° / 41°0Overcast
48 °Overcast

South Lyon, Tuesday, 10 November

Overcast. High 48°, low 41°.

Pressure29.80 inHg
Wind18.1 mph NW
Humidity67%
Visibility—
Dew point35°
Wed, 1144° / 40°0Overcast
44 °Overcast

South Lyon, Wednesday, 11 November

Overcast. High 44°, low 40°.

Pressure30.00 inHg
Wind18.5 mph NW
Humidity67%
Visibility—
Dew point32°
Thu, 1249° / 38°0Overcast
49 °Overcast

South Lyon, Thursday, 12 November

Overcast. High 49°, low 38°.

Pressure30.03 inHg
Wind7.3 mph S
Humidity53%
Visibility—
Dew point30°
Fri, 1351° / 42°0Overcast
51 °Overcast

South Lyon, Friday, 13 November

Overcast. High 51°, low 42°.

Pressure29.77 inHg
Wind10.7 mph S
Humidity69%
Visibility—
Dew point40°
Sat, 1450° / 46°0Overcast
50 °Overcast

South Lyon, Saturday, 14 November

Overcast. High 50°, low 46°.

Pressure29.68 inHg
Wind16.8 mph N
Humidity68%
Visibility—
Dew point38°
Sun, 1547° / 37°0.01Light rain
47 °Light rain

South Lyon, Sunday, 15 November

Light rain. High 47°, low 37°.

Pressure30.03 inHg
Wind17.2 mph N
Humidity53%
Visibility—
Dew point30°
Mon, 1650° / 34°0Overcast
50 °Overcast

South Lyon, Monday, 16 November

Overcast. High 50°, low 34°.

Pressure30.06 inHg
Wind11.9 mph SW
Humidity53%
Visibility—
Dew point31°

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.