As of 01:09 EST

Weather in South Lyon, MI

62°

South Lyon, Wednesday, 4 November, 01:09

Overcast. Feels like 62°. High 66°, low 57°.

Pressure29.91 inHg

Wind3 mph SE

Humidity84%

Visibility6.2 mi

Dew point57°

See detailed hourly forecast

Thu, 0557° / 50°

0.01

57 °

South Lyon, Thursday, 5 November

Light rain. High 57°, low 50°.

Pressure29.77 inHg

Wind12.4 mph SW

Humidity60%

Visibility6.2 mi

Dew point43°

Fri, 0650° / 38°

0.01

50 °

South Lyon, Friday, 6 November

Light rain. High 50°, low 38°.

Pressure30.00 inHg

Wind9.9 mph NW

Humidity67%

Visibility6.2 mi

Dew point36°

Sat, 0745° / 37°

45 °

South Lyon, Saturday, 7 November

Overcast. High 45°, low 37°.

Pressure30.09 inHg

Wind12.3 mph NW

Humidity69%

Visibility6.2 mi

Dew point34°

Sun, 0853° / 33°

53 °

South Lyon, Sunday, 8 November

Mostly clear. High 53°, low 33°.

Pressure29.91 inHg

Wind13 mph W

Humidity59%

Visibility—

Dew point35°

Mon, 0955° / 40°

55 °

South Lyon, Monday, 9 November

Overcast. High 55°, low 40°.

Pressure30.06 inHg

Wind13.6 mph W

Humidity50%

Visibility—

Dew point33°

Tue, 1059° / 44°

59 °

South Lyon, Tuesday, 10 November

Mostly clear. High 59°, low 44°.

Pressure29.97 inHg

Wind13 mph W

Humidity43%

Visibility—

Dew point35°

Wed, 1149° / 37°

49 °

South Lyon, Wednesday, 11 November

Overcast. High 49°, low 37°.

Pressure30.18 inHg

Wind8.8 mph N

Humidity49%

Visibility—

Dew point29°

Thu, 1248° / 34°

48 °

South Lyon, Thursday, 12 November

Clear. High 48°, low 34°.

Pressure30.09 inHg

Wind5.9 mph W

Humidity45%

Visibility—

Dew point25°

Fri, 1350° / 37°

0.05

50 °

South Lyon, Friday, 13 November

Light rain. High 50°, low 37°.

Pressure29.85 inHg

Wind17.3 mph W

Humidity63%

Visibility—

Dew point36°

Sat, 1444° / 31°

0.01

44 °

South Lyon, Saturday, 14 November

Snow. High 44°, low 31°.

Pressure30.03 inHg

Wind13.8 mph N

Humidity65%

Visibility—

Dew point29°

Sun, 1542° / 28°

42 °

South Lyon, Sunday, 15 November

Clear. High 42°, low 28°.

Pressure30.36 inHg

Wind11.1 mph N

Humidity50%

Visibility—

Dew point23°

Mon, 1648° / 30°

48 °

South Lyon, Monday, 16 November

Clear. High 48°, low 30°.

Pressure30.42 inHg

Wind6.7 mph W

Humidity35%

Visibility—

Dew point19°

Tue, 1753° / 32°

53 °

South Lyon, Tuesday, 17 November

Clear. High 53°, low 32°.

Pressure30.42 inHg

Wind8.3 mph W

Humidity25%

Visibility—

Dew point15°

Wed, 1855° / 37°

55 °

South Lyon, Wednesday, 18 November

Overcast. High 55°, low 37°.

Pressure30.42 inHg

Wind9.1 mph SW

Humidity27%

Visibility—

Dew point19°

Thu, 1953° / 43°

53 °

South Lyon, Thursday, 19 November

Overcast. High 53°, low 43°.

Pressure30.33 inHg

Wind11.7 mph SE

Humidity39%

Visibility—

Dew point27°

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.