What is the weather in South Lyon right now?

Current weather in South Lyon is clear sky.

Where can I find the hourly weather forecast for South Lyon?

This page shows hourly weather forecast for South Lyon, including temperature, wind, precipitation, humidity and cloud cover.

Is the weather forecast for South Lyon updated regularly?

Weather data for South Lyon is updated regularly with the latest available observations and forecasts.

Now · 9:52 PM

South Lyon Weather & Hourly Forecast

United States · Michigan · 48178

78°F

Clear night

Feels like: 80°F

💧 Humidity 84% 🌡 Pressure 29.91 inHg 💨 Wind 3 mph 👁 Visibility 6.2 mi ☁ Clouds 10% ☀️ UV index 0.0 · Low 🌅 Sunrise 7:00 AM 🌇 Sunset 8:08 PM

Hourly Forecast for South Lyon

Today

10:00 PM

Clear night

78° 💧 0.01 in 💨 3 mph H 84%29.91 inHg

Tomorrow

1:00 AM

Clear night

75° 💧 None 💨 2 mph H 87%29.91 inHg

4:00 AM

Clear night

71° 💧 None 💨 6 mph H 92%29.91 inHg

7:00 AM

Moderate rain

71° 💧 0.24 in 💨 9 mph H 96%29.94 inHg

10:00 AM

Mostly cloudy

78° 💧 None 💨 7 mph H 78%29.94 inHg

1:00 PM

Partly cloudy

87° 💧 None 💨 11 mph H 45%29.91 inHg

4:00 PM

Overcast

88° 💧 0.08 in 💨 12 mph H 40%29.88 inHg

7:00 PM

Light rain

75° 💧 0.04 in 💨 5 mph H 80%29.91 inHg

10:00 PM

Mostly cloudy night

70° 💧 0.02 in 💨 6 mph H 80%29.94 inHg

Friday

1:00 AM

Mostly cloudy night

69° 💧 0.03 in 💨 2 mph H 85%29.91 inHg

4:00 AM

Moderate rain

69° 💧 0.51 in 💨 11 mph H 95%29.94 inHg

7:00 AM

Overcast night

69° 💧 0.01 in 💨 7 mph H 96%29.94 inHg

10:00 AM

Overcast

69° 💧 None 💨 4 mph H 89%29.91 inHg

1:00 PM

Overcast

78° 💧 None 💨 9 mph H 64%29.94 inHg

4:00 PM

Overcast

84° 💧 None 💨 9 mph H 56%29.91 inHg

7:00 PM

Overcast

81° 💧 None 💨 4 mph H 68%29.88 inHg

Today

10:00 PM

Clear night

78° 💧 None 💨 3 mph H 84%29.91 inHg

11:00 PM

Mostly clear night

78° 💧 None 💨 3 mph H 84%29.91 inHg

Tomorrow

12:00 AM

Light rain

76° 💧 0.01 in 💨 2 mph H 85%29.91 inHg

1:00 AM

Clear night

75° 💧 None 💨 2 mph H 87%29.91 inHg

2:00 AM

Clear night

73° 💧 None 💨 2 mph H 88%29.91 inHg

3:00 AM

Clear night

71° 💧 None 💨 5 mph H 91%29.91 inHg

4:00 AM

Clear night

71° 💧 None 💨 6 mph H 92%29.91 inHg

5:00 AM

Clear night

71° 💧 None 💨 6 mph H 93%29.91 inHg

6:00 AM

Clear night

72° 💧 None 💨 6 mph H 94%29.91 inHg

7:00 AM

Moderate rain

71° 💧 0.10 in 💨 9 mph H 96%29.94 inHg

8:00 AM

Moderate rain

72° 💧 0.11 in 💨 6 mph H 93%29.94 inHg

9:00 AM

Light rain

75° 💧 0.03 in 💨 4 mph H 92%29.94 inHg

10:00 AM

Mostly cloudy

78° 💧 None 💨 7 mph H 78%29.94 inHg

11:00 AM

Mostly cloudy

82° 💧 None 💨 10 mph H 64%29.91 inHg

12:00 PM

Mostly cloudy

86° 💧 None 💨 10 mph H 52%29.91 inHg

1:00 PM

Partly cloudy

87° 💧 None 💨 11 mph H 45%29.91 inHg

2:00 PM

Mostly cloudy

88° 💧 None 💨 11 mph H 41%29.88 inHg

3:00 PM

Overcast

90° 💧 None 💨 13 mph H 40%29.88 inHg

4:00 PM

Overcast

88° 💧 None 💨 12 mph H 40%29.88 inHg

5:00 PM

Overcast

86° 💧 None 💨 10 mph H 41%29.85 inHg

6:00 PM

Moderate rain

80° 💧 0.08 in 💨 17 mph H 74%29.88 inHg

7:00 PM

Light rain

75° 💧 0.03 in 💨 5 mph H 80%29.91 inHg

8:00 PM

Light rain

74° 💧 0.01 in 💨 5 mph H 74%29.88 inHg

9:00 PM

Overcast night

72° 💧 None 💨 7 mph H 80%29.91 inHg

10:00 PM

Mostly cloudy night

70° 💧 None 💨 6 mph H 80%29.94 inHg

11:00 PM

Light rain

69° 💧 0.01 in 💨 2 mph H 82%29.91 inHg

Friday

12:00 AM

Light rain

70° 💧 0.01 in 💨 4 mph H 86%29.94 inHg

1:00 AM

Mostly cloudy night

69° 💧 None 💨 2 mph H 85%29.91 inHg

2:00 AM

Light rain

70° 💧 0.01 in 💨 2 mph H 85%29.91 inHg

3:00 AM

Light rain

69° 💧 0.03 in 💨 2 mph H 88%29.91 inHg

4:00 AM

Moderate rain

69° 💧 0.11 in 💨 11 mph H 95%29.94 inHg

5:00 AM

Heavy rain

69° 💧 0.36 in 💨 10 mph H 98%29.97 inHg

6:00 AM

Light rain

69° 💧 0.03 in 💨 5 mph H 97%29.94 inHg

7:00 AM

Overcast night

69° 💧 None 💨 7 mph H 96%29.94 inHg

8:00 AM

Light rain

69° 💧 0.01 in 💨 7 mph H 96%29.94 inHg

9:00 AM

Overcast

69° 💧 None 💨 7 mph H 94%29.97 inHg

10:00 AM

Overcast

69° 💧 None 💨 4 mph H 89%29.91 inHg

11:00 AM

Overcast

70° 💧 None 💨 8 mph H 86%29.94 inHg

12:00 PM

Overcast

75° 💧 None 💨 9 mph H 75%29.94 inHg

1:00 PM

Overcast

78° 💧 None 💨 9 mph H 64%29.94 inHg

2:00 PM

Overcast

76° 💧 None 💨 9 mph H 59%29.94 inHg

3:00 PM

Overcast

84° 💧 None 💨 9 mph H 58%29.91 inHg

4:00 PM

Overcast

84° 💧 None 💨 9 mph H 56%29.91 inHg

5:00 PM

Overcast

84° 💧 None 💨 6 mph H 58%29.91 inHg

6:00 PM

Overcast

84° 💧 None 💨 5 mph H 59%29.88 inHg

7:00 PM

Overcast

81° 💧 None 💨 4 mph H 68%29.88 inHg

8:00 PM

Overcast

76° 💧 None 💨 6 mph H 77%29.91 inHg

9:00 PM

Overcast night

73° 💧 None 💨 7 mph H 84%29.94 inHg

10:00 PM

Overcast night

72° 💧 None 💨 7 mph H 89%29.94 inHg

11:00 PM

Overcast night

71° 💧 None 💨 7 mph H 91%29.94 inHg

Saturday

12:00 AM

Overcast night

70° 💧 None 💨 7 mph H 87%29.94 inHg

1:00 AM

Light rain

69° 💧 0.02 in 💨 6 mph H 84%29.94 inHg

2:00 AM

Moderate rain

67° 💧 0.09 in 💨 6 mph H 93%29.94 inHg

3:00 AM

Light rain

66° 💧 0.02 in 💨 6 mph H 93%29.94 inHg

4:00 AM

Light rain

65° 💧 0.02 in 💨 3 mph H 95%29.94 inHg

5:00 AM

Moderate rain

65° 💧 0.05 in 💨 3 mph H 94%29.94 inHg

6:00 AM

Moderate rain

66° 💧 0.06 in 💨 3 mph H 94%29.97 inHg

7:00 AM

Light rain

65° 💧 0.03 in 💨 6 mph H 94%29.94 inHg

8:00 AM

Light rain

66° 💧 0.01 in 💨 4 mph H 93%29.94 inHg

9:00 AM

Overcast

67° 💧 None 💨 6 mph H 86%29.97 inHg

10:00 AM

Partly cloudy

70° 💧 None 💨 6 mph H 76%29.94 inHg

11:00 AM

Partly cloudy

74° 💧 None 💨 6 mph H 66%29.94 inHg

12:00 PM

Mostly sunny

76° 💧 None 💨 7 mph H 58%29.94 inHg

1:00 PM

Mostly sunny

78° 💧 None 💨 8 mph H 51%29.94 inHg

2:00 PM

Mostly sunny

80° 💧 None 💨 8 mph H 47%29.94 inHg

3:00 PM

Sunny

81° 💧 None 💨 7 mph H 44%29.94 inHg

4:00 PM

Sunny

81° 💧 None 💨 6 mph H 44%29.94 inHg

5:00 PM

Sunny

81° 💧 None 💨 7 mph H 44%29.94 inHg

6:00 PM

Sunny

79° 💧 None 💨 7 mph H 48%29.91 inHg

7:00 PM

Sunny

76° 💧 None 💨 9 mph H 57%29.94 inHg

8:00 PM

Sunny

71° 💧 None 💨 10 mph H 61%29.94 inHg

9:00 PM

Clear night

69° 💧 None 💨 11 mph H 66%29.97 inHg

10:00 PM

Clear night

67° 💧 None 💨 10 mph H 68%30.00 inHg

11:00 PM

Clear night

64° 💧 None 💨 10 mph H 67%30.00 inHg

Sunday

12:00 AM

Clear night

63° 💧 None 💨 8 mph H 68%30.03 inHg

1:00 AM

Clear night

61° 💧 None 💨 7 mph H 73%30.03 inHg

2:00 AM

Clear night

60° 💧 None 💨 7 mph H 79%30.03 inHg

3:00 AM

Clear night

60° 💧 None 💨 6 mph H 84%30.03 inHg

4:00 AM

Clear night

59° 💧 None 💨 7 mph H 86%30.03 inHg

5:00 AM

Clear night

59° 💧 None 💨 7 mph H 89%30.03 inHg

6:00 AM

Clear night

58° 💧 None 💨 6 mph H 91%30.06 inHg

7:00 AM

Clear night

57° 💧 None 💨 7 mph H 92%30.06 inHg

8:00 AM

Sunny

59° 💧 None 💨 7 mph H 88%30.09 inHg

9:00 AM

Sunny

64° 💧 None 💨 9 mph H 76%30.09 inHg

10:00 AM

Sunny

68° 💧 None 💨 9 mph H 66%30.12 inHg

11:00 AM

Sunny

71° 💧 None 💨 9 mph H 58%30.12 inHg

12:00 PM

Sunny

73° 💧 None 💨 9 mph H 52%30.09 inHg

1:00 PM

Sunny

75° 💧 None 💨 9 mph H 48%30.09 inHg

2:00 PM

Sunny

76° 💧 None 💨 9 mph H 45%30.09 inHg

3:00 PM

Sunny

77° 💧 None 💨 9 mph H 44%30.09 inHg

4:00 PM

Sunny

77° 💧 None 💨 9 mph H 43%30.06 inHg

5:00 PM

Sunny

77° 💧 None 💨 8 mph H 43%30.09 inHg

6:00 PM

Sunny

76° 💧 None 💨 7 mph H 46%30.09 inHg

7:00 PM

Mostly sunny

73° 💧 None 💨 6 mph H 57%30.09 inHg

8:00 PM

Mostly sunny

68° 💧 None 💨 5 mph H 67%30.12 inHg

9:00 PM

Overcast night

66° 💧 None 💨 6 mph H 73%30.15 inHg

In South Lyon and, more broadly, across the state of Michigan: This evening will feature a mix of sun and clouds, with temperatures ranging from the mid-70s to low 80s. Light west winds are expected, blowing at around 4 mph with gusts up to 4 mph. There is a possibility of rain during the next few hours, with the highest chance being around 80 percent. Overall, conditions will remain mild to warm, but there may be brief periods of rain. Keep an umbrella handy if you're planning to be outdoors later tonight. The weather will gradually remain unsettled into the early part of the night, with no significant temperature changes expected.

15-Day Weather Outlook for South Lyon

TomorrowTomorrow

Moderate rain 90°/69° 💧 0.39 in 💨 17 mph

Friday, Sep 4Fri Sep 4

Heavy rain 84°/69° 💧 0.57 in 💨 11 mph

Saturday, Sep 5Sat Sep 5

Moderate rain 81°/64° 💧 0.27 in 💨 11 mph

Sunday, Sep 6Sun Sep 6

Sunny 77°/59° 💧 None 💨 9 mph

Monday, Sep 7Mon Sep 7

Mostly cloudy 78°/59° 💧 None 💨 11 mph

Tuesday, Sep 8Tue Sep 8

Overcast 84°/64° 💧 None 💨 13 mph

Wednesday, Sep 9Wed Sep 9

Mostly cloudy 94°/73° 💧 None 💨 16 mph

Thursday, Sep 10Thu Sep 10

Partly cloudy 74°/57° 💧 None 💨 13 mph

Friday, Sep 11Fri Sep 11

Mostly cloudy 83°/58° 💧 None 💨 10 mph

Saturday, Sep 12Sat Sep 12

Partly cloudy 99°/67° 💧 None 💨 17 mph

Sunday, Sep 13Sun Sep 13

Mostly sunny 99°/79° 💧 None 💨 19 mph

Monday, Sep 14Mon Sep 14

Sunny 84°/64° 💧 None 💨 16 mph

Tuesday, Sep 15Tue Sep 15

Sunny 91°/59° 💧 None 💨 8 mph

Wednesday, Sep 16Wed Sep 16

Sunny 83°/59° 💧 None 💨 11 mph

Thursday, Sep 17Thu Sep 17

Partly cloudy 83°/58° 💧 None 💨 9 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in South Lyon

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for South Lyon

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 10:00 PM

PM2.5 Fine particles Good 8,7µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 9,2µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Fair 82,7µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 2,8µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is acceptable for most people.

UV & HEALTH

UV, Sun & Health Outlook in South Lyon

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 7,3High 🙂Fair

Tomorrow UV 6,6High 🙂Fair

Friday UV 7,0High 🙂Fair

Saturday UV 7,1High 🙂Fair

Sunday UV 7,0High 🙂Fair

Monday UV 6,0High —Unavailable

Tuesday UV 5,0Moderate —Unavailable

Today's weather health advice Open today's recommendations.

Strong UV exposure

Protect exposed skin with SPF 30+ sunscreen, wear sunglasses, and try to limit direct midday sun.

Acceptable air quality

Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged exertion.

Stay hydrated

Drink water regularly, especially during physical activity or prolonged sun exposure. High humidity can make it feel hotter.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for South Lyon

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

Internal PR simulation: 4.16 Population: 11,950

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Forecast data for South Lyon were last refreshed today at 9:52 PM. The current forecast period extends through 04/09/2026 at 7:00 PM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.