EN
English Español

As of 03:36 EDT

Weather in South Lyon, MI

47°Current weather

South Lyon, Friday, 30 October, 03:36

Clear. Feels like 43°. High 58°, low 42°.

Pressure30.24 inHg
Wind6.7 mph NW
Humidity86%
Visibility6.2 mi
Dew point43°
Sat, 3160° / 41°0Overcast
60 °Overcast

South Lyon, Saturday, 31 October

Overcast. High 60°, low 41°.

Pressure30.45 inHg
Wind6.4 mph SE
Humidity72%
Visibility6.2 mi
Dew point46°
Sun, 0166° / 48°0.09Rain
66 °Rain

South Lyon, Sunday, 1 November

Rain. High 66°, low 48°.

Pressure30.39 inHg
Wind4 mph S
Humidity58%
Visibility6.2 mi
Dew point46°
Mon, 0265° / 51°0Overcast
65 °Overcast

South Lyon, Monday, 2 November

Overcast. High 65°, low 51°.

Pressure30.24 inHg
Wind5.6 mph S
Humidity66%
Visibility6.2 mi
Dew point50°
Tue, 0366° / 56°0Light rain
66 °Light rain

South Lyon, Tuesday, 3 November

Light rain. High 66°, low 56°.

Pressure30.06 inHg
Wind10.6 mph S
Humidity63%
Visibility—
Dew point51°
Wed, 0467° / 56°0Overcast
67 °Overcast

South Lyon, Wednesday, 4 November

Overcast. High 67°, low 56°.

Pressure29.88 inHg
Wind15.9 mph S
Humidity57%
Visibility—
Dew point49°
Thu, 0560° / 58°0.31Rain
60 °Rain

South Lyon, Thursday, 5 November

Rain. High 60°, low 58°.

Pressure29.68 inHg
Wind9.8 mph SE
Humidity89%
Visibility—
Dew point56°
Fri, 0653° / 44°0.3Rain
53 °Rain

South Lyon, Friday, 6 November

Rain. High 53°, low 44°.

Pressure29.71 inHg
Wind16.1 mph N
Humidity80%
Visibility—
Dew point46°
Sat, 0752° / 41°0Mostly clear
52 °Mostly clear

South Lyon, Saturday, 7 November

Mostly clear. High 52°, low 41°.

Pressure30.09 inHg
Wind11.4 mph NW
Humidity47%
Visibility—
Dew point31°
Sun, 0849° / 36°0Overcast
49 °Overcast

South Lyon, Sunday, 8 November

Overcast. High 49°, low 36°.

Pressure30.18 inHg
Wind9.3 mph E
Humidity38%
Visibility—
Dew point23°
Mon, 0942° / 38°0.4Rain
42 °Rain

South Lyon, Monday, 9 November

Rain. High 42°, low 38°.

Pressure29.97 inHg
Wind14.7 mph E
Humidity90%
Visibility—
Dew point36°
Tue, 1044° / 35°0Overcast
44 °Overcast

South Lyon, Tuesday, 10 November

Overcast. High 44°, low 35°.

Pressure30.00 inHg
Wind12.5 mph NE
Humidity58%
Visibility—
Dew point28°
Wed, 1143° / 30°0Clear
43 °Clear

South Lyon, Wednesday, 11 November

Clear. High 43°, low 30°.

Pressure30.00 inHg
Wind6.2 mph NW
Humidity47%
Visibility—
Dew point22°
Thu, 1242° / 34°0.02Light rain
42 °Light rain

South Lyon, Thursday, 12 November

Light rain. High 42°, low 34°.

Pressure29.77 inHg
Wind6.8 mph S
Humidity60%
Visibility—
Dew point28°
Fri, 1346° / 39°0.14Light rain
46 °Light rain

South Lyon, Friday, 13 November

Light rain. High 46°, low 39°.

Pressure29.68 inHg
Wind11.1 mph W
Humidity95%
Visibility—
Dew point41°
Sat, 1447° / 38°0Overcast
47 °Overcast

South Lyon, Saturday, 14 November

Overcast. High 47°, low 38°.

Pressure29.91 inHg
Wind10.6 mph S
Humidity71%
Visibility—
Dew point37°

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.