EN
English Español

As of 11:03 EDT

Weather in South Lyon, MI

61°Current weather

South Lyon, Wednesday, 28 October, 11:03

Clear. Feels like 60°. High 70°, low 51°.

Pressure30.27 inHg
Wind1 mph SW
Humidity79%
Visibility6.2 mi
Dew point54°
Thu, 2970° / 53°0.16Rain
70 °Rain

South Lyon, Thursday, 29 October

Rain. High 70°, low 53°.

Pressure30.06 inHg
Wind9.7 mph SW
Humidity62%
Visibility6.2 mi
Dew point53°
Fri, 3057° / 43°0Partly cloudy
57 °Partly cloudy

South Lyon, Friday, 30 October

Partly cloudy. High 57°, low 43°.

Pressure30.36 inHg
Wind5.5 mph N
Humidity65%
Visibility6.2 mi
Dew point41°
Sat, 3158° / 49°0Overcast
58 °Overcast

South Lyon, Saturday, 31 October

Overcast. High 58°, low 49°.

Pressure30.39 inHg
Wind8.3 mph SE
Humidity71%
Visibility6.2 mi
Dew point48°
Sun, 0161° / 49°0.03Light rain
61 °Light rain

South Lyon, Sunday, 1 November

Light rain. High 61°, low 49°.

Pressure30.33 inHg
Wind5.4 mph E
Humidity55%
Visibility—
Dew point43°
Mon, 0265° / 45°0Overcast
65 °Overcast

South Lyon, Monday, 2 November

Overcast. High 65°, low 45°.

Pressure30.24 inHg
Wind7.9 mph SE
Humidity60%
Visibility—
Dew point48°
Tue, 0356° / 52°0Overcast
56 °Overcast

South Lyon, Tuesday, 3 November

Overcast. High 56°, low 52°.

Pressure30.09 inHg
Wind15.2 mph E
Humidity84%
Visibility—
Dew point50°
Wed, 0459° / 53°0.04Light rain
59 °Light rain

South Lyon, Wednesday, 4 November

Light rain. High 59°, low 53°.

Pressure29.97 inHg
Wind14.9 mph SE
Humidity80%
Visibility—
Dew point50°
Thu, 0562° / 55°0.28Light rain
62 °Light rain

South Lyon, Thursday, 5 November

Light rain. High 62°, low 55°.

Pressure29.65 inHg
Wind9.1 mph SE
Humidity87%
Visibility—
Dew point56°
Fri, 0653° / 39°0.13Light rain
53 °Light rain

South Lyon, Friday, 6 November

Light rain. High 53°, low 39°.

Pressure29.83 inHg
Wind17.5 mph N
Humidity52%
Visibility—
Dew point30°
Sat, 0744° / 35°0Overcast
44 °Overcast

South Lyon, Saturday, 7 November

Overcast. High 44°, low 35°.

Pressure30.24 inHg
Wind9.4 mph N
Humidity50%
Visibility—
Dew point25°
Sun, 0846° / 32°0Clear
46 °Clear

South Lyon, Sunday, 8 November

Clear. High 46°, low 32°.

Pressure30.42 inHg
Wind4.3 mph NW
Humidity45%
Visibility—
Dew point24°
Mon, 0950° / 34°0Clear
50 °Clear

South Lyon, Monday, 9 November

Clear. High 50°, low 34°.

Pressure30.30 inHg
Wind8.4 mph SE
Humidity50%
Visibility—
Dew point30°
Tue, 1050° / 41°0.13Light rain
50 °Light rain

South Lyon, Tuesday, 10 November

Light rain. High 50°, low 41°.

Pressure30.03 inHg
Wind7 mph SE
Humidity65%
Visibility—
Dew point38°
Wed, 1147° / 40°0.39Light rain
47 °Light rain

South Lyon, Wednesday, 11 November

Light rain. High 47°, low 40°.

Pressure30.00 inHg
Wind17.5 mph NE
Humidity92%
Visibility—
Dew point41°
Thu, 1244° / 40°0.06Light rain
44 °Light rain

South Lyon, Thursday, 12 November

Light rain. High 44°, low 40°.

Pressure29.97 inHg
Wind16.5 mph NE
Humidity87%
Visibility—
Dew point40°

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.