Live Weather & Forecast

Weather in Grand Blanc

Michigan, United States · Real-time conditions & 3-day outlook

Flag of United States
Partly Cloudy
21°C
Feels like 21°C
70°F / Feels 70°F
Partly Cloudy
Grand Blanc, Michigan
🌞 Daytime
Updated: 2026-04-15 18:45
💧
Humidity
78%
💨
Wind
13 km/h WSW
🌬️
Wind Gust
17.3 km/h
🌡️
Pressure
1009 mb
👁️
Visibility
16 km
☀️
UV Index
1 (Low)
🌧️
Precipitation
0 mm
☁️
Cloud Cover
25%
💦
Dew Point
18.3°C
🌐
Wind Degree
243°

Air Quality Index

US EPA: Good UK DEFRA: Low (1)
CO
172.9 μg/m³
NO₂
12.1 μg/m³
O₃
60 μg/m³
SO₂
2.2 μg/m³
PM 2.5
5.8 μg/m³
PM 10
6 μg/m³

Weather Alerts 5

Met · Severe · Future
Flood Watch issued April 14 at 9:21PM EDT until April 17 at 2:00AM EDT by NWS Detroit/Pontiac MI

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of southeast Michigan, including the following areas, Bay, Genesee, Huron, Lapeer, Lenawee, Livingston, Macomb, Midland, Monroe, Oakland, Saginaw, Sanilac, Shiawassee, St. Clair, Tuscola, Washtenaw and Wayne. * WHEN...Through late Thursday night. * IMPACTS...Excessive runoff may result in flooding of ri...

You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.

Met · Severe · Expected
Flood Warning issued April 15 at 10:44AM EDT until April 20 at 8:00PM EDT by NWS Detroit/Pontiac MI

...The National Weather Service in Detroit/Pontiac MI has issued a Flood Warning for the following rivers in Michigan... Cass River At Frankenmuth affecting Saginaw County. Shiawassee River At Owosso affecting Shiawassee and Saginaw Counties. Tittabawassee River At Midland affecting Saginaw and Midland Counties. Saginaw River At Saginaw affecting Saginaw and Bay Counties. .Recent rainfall has...

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Additional information is available at www.water.noaa.gov/wfo/dtx. The next statement will be issued this e...

Met · Severe · Expected
Flood Warning issued April 15 at 10:44AM EDT until April 19 at 10:24PM EDT by NWS Detroit/Pontiac MI

...The National Weather Service in Detroit/Pontiac MI has issued a Flood Warning for the following rivers in Michigan... Cass River At Frankenmuth affecting Saginaw County. Shiawassee River At Owosso affecting Shiawassee and Saginaw Counties. Tittabawassee River At Midland affecting Saginaw and Midland Counties. Saginaw River At Saginaw affecting Saginaw and Bay Counties. .Recent rainfall has...

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Additional information is available at www.water.noaa.gov/wfo/dtx. The next statement will be issued this e...

Met · Severe · Expected
Flood Warning issued April 15 at 10:44AM EDT until April 18 at 6:00AM EDT by NWS Detroit/Pontiac MI

...The National Weather Service in Detroit/Pontiac MI has issued a Flood Warning for the following rivers in Michigan... Cass River At Frankenmuth affecting Saginaw County. Shiawassee River At Owosso affecting Shiawassee and Saginaw Counties. Tittabawassee River At Midland affecting Saginaw and Midland Counties. Saginaw River At Saginaw affecting Saginaw and Bay Counties. .Recent rainfall has...

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Additional information is available at www.water.noaa.gov/wfo/dtx. The next statement will be issued this e...

Met · Severe · Expected
Flood Warning issued April 15 at 10:44AM EDT by NWS Detroit/Pontiac MI

...The National Weather Service in Detroit/Pontiac MI has issued a Flood Warning for the following rivers in Michigan... Cass River At Frankenmuth affecting Saginaw County. Shiawassee River At Owosso affecting Shiawassee and Saginaw Counties. Tittabawassee River At Midland affecting Saginaw and Midland Counties. Saginaw River At Saginaw affecting Saginaw and Bay Counties. .Recent rainfall has...

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Additional information is available at www.water.noaa.gov/wfo/dtx. The next statement will be issued this e...

Today's Hourly Forecast

24-hour breakdown for Grand Blanc, Michigan

12 AM
Clear
20°
Clear
💧 81% 💨 15.8 km/h
1 AM
Patchy rain nearby
19°
Patchy rain nearby
💧 77% 💨 29.5 km/h 🌧️ 100%
2 AM
Patchy rain nearby
19°
Patchy rain nearby
💧 94% 💨 27.4 km/h 🌧️ 100%
3 AM
Heavy rain
18°
Heavy rain
💧 94% 💨 19.8 km/h 🌧️ 100%
4 AM
Patchy rain nearby
18°
Patchy rain nearby
💧 89% 💨 9.7 km/h 🌧️ 100%
5 AM
Patchy rain nearby
17°
Patchy rain nearby
💧 86% 💨 19.8 km/h 🌧️ 100%
6 AM
Patchy rain nearby
17°
Patchy rain nearby
💧 89% 💨 21.2 km/h 🌧️ 77%
7 AM
Sunny
17°
Sunny
💧 84% 💨 17.6 km/h
8 AM
Patchy rain nearby
17°
Patchy rain nearby
💧 90% 💨 19.8 km/h 🌧️ 100%
9 AM
Patchy rain nearby
18°
Patchy rain nearby
💧 90% 💨 18.4 km/h 🌧️ 100%
10 AM
Patchy rain nearby
20°
Patchy rain nearby
💧 89% 💨 19.4 km/h 🌧️ 100%
11 AM
Sunny
20°
Sunny
💧 85% 💨 28.8 km/h
12 PM
Patchy light drizzle
21°
Patchy light drizzle
💧 92% 💨 18.7 km/h 🌧️ 100%
1 PM
Patchy rain nearby
21°
Patchy rain nearby
💧 87% 💨 23.8 km/h 🌧️ 100%
2 PM
Patchy rain nearby
22°
Patchy rain nearby
💧 83% 💨 24.8 km/h 🌧️ 86%
3 PM
Sunny
22°
Sunny
💧 86% 💨 23.8 km/h
4 PM
Patchy rain nearby
22°
Patchy rain nearby
💧 86% 💨 22.3 km/h 🌧️ 84%
5 PM
Sunny
22°
Sunny
💧 84% 💨 19.4 km/h
6 PM
Partly Cloudy
21°
Partly Cloudy
💧 78% 💨 13 km/h
7 PM
Patchy rain nearby
20°
Patchy rain nearby
💧 86% 💨 9.7 km/h 🌧️ 62%
8 PM
Patchy rain nearby
18°
Patchy rain nearby
💧 86% 💨 11.2 km/h 🌧️ 100%
9 PM
Clear
17°
Clear
💧 91% 💨 13 km/h
10 PM
Clear
17°
Clear
💧 93% 💨 14.8 km/h
11 PM
Clear
16°
Clear
💧 92% 💨 15.1 km/h

3-Day Forecast

Daily overview for Grand Blanc, Michigan

Today
Heavy rain
Heavy rain
23° / 16°
🌧️ 87% chance of rain
💧 Avg. humidity: 87%
💨 Max wind: 29.5 km/h
🌧️ Total precip: 24.46 mm
☀️ UV Index: 0.7
🌅 Sunrise: 06:53 AM
🌇 Sunset: 08:17 PM
🌙 Waning Crescent
🌑 Moon: 8% lit
Thu, Apr 16
Heavy rain
Heavy rain
21° / 12°
🌧️ 88% chance of rain
💧 Avg. humidity: 93%
💨 Max wind: 28.4 km/h
🌧️ Total precip: 40.88 mm
☀️ UV Index: 1.2
🌅 Sunrise: 06:51 AM
🌇 Sunset: 08:18 PM
🌙 Waning Crescent
🌑 Moon: 3% lit
Fri, Apr 17
Moderate rain
Moderate rain
20° / 10°
🌧️ 84% chance of rain
💧 Avg. humidity: 90%
💨 Max wind: 24.5 km/h
🌧️ Total precip: 6.93 mm
☀️ UV Index: 1.6
🌅 Sunrise: 06:49 AM
🌇 Sunset: 08:19 PM
🌙 New Moon
🌑 Moon: 0% lit

Best Time to Visit Grand Blanc

Plan your trip to Grand Blanc, United States around the most favorable weather conditions.

Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
← Back to Grand Blanc 🗓 View Holidays 2026

Frequently Asked Questions

What is the current weather in Grand Blanc?
Current conditions in Grand Blanc: Partly Cloudy, temperature 21°C, humidity 78%.
What is the best time to visit Grand Blanc?
The best time to visit Grand Blanc is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Grand Blanc?
Grand Blanc is located at approximately 42.9° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Grand Blanc?
The wettest period in Grand Blanc is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Grand Blanc?
For visits to Grand Blanc during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Grand Blanc in?
Grand Blanc is located in United States, in the state of Michigan.
What are the public holidays in Grand Blanc in 2026?
View the 2026 public holidays for Grand Blanc on our Holidays page.
What are the GPS coordinates used for the weather forecast in Grand Blanc?
The weather forecast for Grand Blanc uses coordinates 42.9275, -83.63.