As of 05:35 EST

Weather in South Lyon, MI

54°

South Lyon, Monday, 2 November, 05:35

Clear. Feels like 53°. High 64°, low 54°.

Pressure30.27 inHg

Wind6.3 mph S

Humidity80%

Visibility6.2 mi

Dew point48°

See detailed hourly forecast

Tue, 0371° / 56°

71 °

South Lyon, Tuesday, 3 November

Overcast. High 71°, low 56°.

Pressure30.03 inHg

Wind10.5 mph S

Humidity69%

Visibility6.2 mi

Dew point56°

Wed, 0464° / 58°

0.26

64 °

South Lyon, Wednesday, 4 November

Rain. High 64°, low 58°.

Pressure29.77 inHg

Wind14 mph S

Humidity96%

Visibility3.1 mi

Dew point60°

Thu, 0557° / 51°

0.07

57 °

South Lyon, Thursday, 5 November

Light rain. High 57°, low 51°.

Pressure29.74 inHg

Wind11 mph SW

Humidity62%

Visibility6.2 mi

Dew point44°

Fri, 0652° / 44°

0.21

52 °

South Lyon, Friday, 6 November

Light rain. High 52°, low 44°.

Pressure29.83 inHg

Wind9.4 mph N

Humidity88%

Visibility—

Dew point48°

Sat, 0745° / 40°

45 °

South Lyon, Saturday, 7 November

Overcast. High 45°, low 40°.

Pressure29.97 inHg

Wind9.2 mph W

Humidity60%

Visibility—

Dew point31°

Sun, 0848° / 37°

0.08

48 °

South Lyon, Sunday, 8 November

Light rain. High 48°, low 37°.

Pressure29.68 inHg

Wind7.4 mph E

Humidity60%

Visibility—

Dew point32°

Mon, 0944° / 37°

0.04

44 °

South Lyon, Monday, 9 November

Light rain. High 44°, low 37°.

Pressure29.77 inHg

Wind15.1 mph NW

Humidity48%

Visibility—

Dew point25°

Tue, 1046° / 35°

46 °

South Lyon, Tuesday, 10 November

Light rain. High 46°, low 35°.

Pressure29.77 inHg

Wind15.4 mph NW

Humidity49%

Visibility—

Dew point27°

Wed, 1147° / 37°

47 °

South Lyon, Wednesday, 11 November

Partly cloudy. High 47°, low 37°.

Pressure29.97 inHg

Wind16.7 mph NW

Humidity43%

Visibility—

Dew point25°

Thu, 1248° / 33°

48 °

South Lyon, Thursday, 12 November

Overcast. High 48°, low 33°.

Pressure29.91 inHg

Wind8.7 mph W

Humidity46%

Visibility—

Dew point26°

Fri, 1345° / 36°

45 °

South Lyon, Friday, 13 November

Overcast. High 45°, low 36°.

Pressure30.03 inHg

Wind11.9 mph N

Humidity51%

Visibility—

Dew point27°

Sat, 1445° / 32°

45 °

South Lyon, Saturday, 14 November

Overcast. High 45°, low 32°.

Pressure30.18 inHg

Wind9.8 mph W

Humidity47%

Visibility—

Dew point25°

Sun, 1552° / 37°

52 °

South Lyon, Sunday, 15 November

Overcast. High 52°, low 37°.

Pressure29.68 inHg

Wind15.6 mph W

Humidity62%

Visibility—

Dew point35°

Mon, 1641° / 29°

41 °

South Lyon, Monday, 16 November

Clear. High 41°, low 29°.

Pressure30.00 inHg

Wind15.9 mph N

Humidity34%

Visibility—

Dew point10°

Tue, 1736° / 28°

0.18

36 °

South Lyon, Tuesday, 17 November

Snow. High 36°, low 28°.

Pressure29.91 inHg

Wind8.1 mph NW

Humidity99%

Visibility—

Dew point33°

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.