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As of 11:30 EST

Weather in South Lyon, MI

57°Current weather

South Lyon, Tuesday, 10 November, 11:30

Clear. Feels like 56°. High 59°, low 42°.

Pressure30.00 inHg
Wind4 mph NW
Humidity65%
Visibility6.2 mi
Dew point45°
Wed, 1157° / 35°0Overcast
57 °Overcast

South Lyon, Wednesday, 11 November

Overcast. High 57°, low 35°.

Pressure29.88 inHg
Wind2.2 mph S
Humidity59%
Visibility6.2 mi
Dew point40°
Thu, 1246° / 35°0Overcast
46 °Overcast

South Lyon, Thursday, 12 November

Overcast. High 46°, low 35°.

Pressure29.83 inHg
Wind12.5 mph NE
Humidity66%
Visibility6.2 mi
Dew point35°
Fri, 1340° / 32°0Overcast
40 °Overcast

South Lyon, Friday, 13 November

Overcast. High 40°, low 32°.

Pressure29.91 inHg
Wind9.8 mph N
Humidity71%
Visibility6.2 mi
Dew point26°
Sat, 1442° / 27°0Clear
42 °Clear

South Lyon, Saturday, 14 November

Clear. High 42°, low 27°.

Pressure30.15 inHg
Wind6.9 mph NW
Humidity65%
Visibility—
Dew point29°
Sun, 1542° / 30°0Overcast
42 °Overcast

South Lyon, Sunday, 15 November

Overcast. High 42°, low 30°.

Pressure30.42 inHg
Wind5.5 mph NW
Humidity63%
Visibility—
Dew point29°
Mon, 1645° / 32°0Overcast
45 °Overcast

South Lyon, Monday, 16 November

Overcast. High 45°, low 32°.

Pressure30.53 inHg
Wind7.3 mph N
Humidity58%
Visibility—
Dew point29°
Tue, 1747° / 32°0Clear
47 °Clear

South Lyon, Tuesday, 17 November

Clear. High 47°, low 32°.

Pressure30.50 inHg
Wind3.3 mph W
Humidity49%
Visibility—
Dew point27°
Wed, 1848° / 33°0Clear
48 °Clear

South Lyon, Wednesday, 18 November

Clear. High 48°, low 33°.

Pressure30.45 inHg
Wind4.6 mph SE
Humidity41%
Visibility—
Dew point23°
Thu, 1949° / 34°0Overcast
49 °Overcast

South Lyon, Thursday, 19 November

Overcast. High 49°, low 34°.

Pressure30.42 inHg
Wind8.1 mph S
Humidity43%
Visibility—
Dew point26°
Fri, 2055° / 38°0Overcast
55 °Overcast

South Lyon, Friday, 20 November

Overcast. High 55°, low 38°.

Pressure30.27 inHg
Wind8.5 mph SW
Humidity36%
Visibility—
Dew point26°
Sat, 2155° / 41°0Overcast
55 °Overcast

South Lyon, Saturday, 21 November

Overcast. High 55°, low 41°.

Pressure30.18 inHg
Wind9.5 mph S
Humidity39%
Visibility—
Dew point29°
Sun, 2253° / 47°0.39Rain
53 °Rain

South Lyon, Sunday, 22 November

Rain. High 53°, low 47°.

Pressure29.85 inHg
Wind16.1 mph SE
Humidity43%
Visibility—
Dew point30°
Mon, 2353° / 41°0.01Light rain
53 °Light rain

South Lyon, Monday, 23 November

Light rain. High 53°, low 41°.

Pressure29.65 inHg
Wind17 mph SW
Humidity56%
Visibility—
Dew point32°
Tue, 2443° / 34°0.02Light snow
43 °Light snow

South Lyon, Tuesday, 24 November

Light snow. High 43°, low 34°.

Pressure29.80 inHg
Wind15.6 mph SW
Humidity50%
Visibility—
Dew point25°
Wed, 2536° / 29°0.02Light snow
36 °Light snow

South Lyon, Wednesday, 25 November

Light snow. High 36°, low 29°.

Pressure30.03 inHg
Wind18.6 mph W
Humidity60%
Visibility—
Dew point23°

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.