Live Weather & Forecast

Weather in Grand Blanc

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

Flag of United States
Partly cloudy
20°C
Feels like 20°C
69°F / Feels 69°F
Partly cloudy
Grand Blanc, Michigan
🌞 Daytime
Updated: 2026-04-15 13:45
💧
Humidity
76%
💨
Wind
18.7 km/h WSW
🌬️
Wind Gust
26.9 km/h
🌡️
Pressure
1010 mb
👁️
Visibility
16 km
☀️
UV Index
1.2 (Low)
🌧️
Precipitation
0.15 mm
☁️
Cloud Cover
50%
💦
Dew Point
19.4°C
🌐
Wind Degree
255°

Air Quality Index

US EPA: Good UK DEFRA: Low (1)
CO
168.9 μg/m³
NO₂
5.7 μg/m³
O₃
65 μg/m³
SO₂
2.3 μg/m³
PM 2.5
6 μg/m³
PM 10
6.3 μg/m³

Weather Alerts 3

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 14 at 11:27AM EDT until April 17 at 12:00AM EDT by NWS Grand Rapids MI

...The National Weather Service in Grand Rapids MI has issued a Flood Warning for the following rivers in Michigan... Sycamore Creek At Holt affecting Ingham County. ...Forecast flooding changed from Moderate to Major severity and increased in duration for the following rivers in Michigan... Muskegon River at Bridgeton affecting Newaygo County. Muskegon River at Newaygo affecting Newaygo Count...

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.weather.gov/grr.

Met · Severe · Future
Flood Watch issued April 14 at 10:09AM EDT until April 17 at 2:00AM EDT by NWS Grand Rapids MI

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of south central and southwest Michigan, including the following counties, in south central Michigan, Calhoun, Clinton, Eaton, Ingham, Ionia and Jackson. In southwest Michigan, Allegan, Barry, Kalamazoo, Kent, Ottawa and Van Buren. * WHEN...From 8 PM EDT this evening through late Thursday night. * IMPACT...

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.

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 🌧️ 64%
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% 💨 29.5 km/h
12 PM
Patchy light drizzle
21°
Patchy light drizzle
💧 92% 💨 23 km/h 🌧️ 100%
1 PM
Partly cloudy
20°
Partly cloudy
💧 76% 💨 18.7 km/h 🌧️ 100%
2 PM
Patchy rain nearby
22°
Patchy rain nearby
💧 88% 💨 18.4 km/h 🌧️ 100%
3 PM
Partly Cloudy
22°
Partly Cloudy
💧 82% 💨 18.7 km/h
4 PM
Overcast
23°
Overcast
💧 78% 💨 23.4 km/h
5 PM
Patchy rain nearby
22°
Patchy rain nearby
💧 78% 💨 21.2 km/h 🌧️ 78%
6 PM
Light rain
21°
Light rain
💧 88% 💨 15.5 km/h 🌧️ 100%
7 PM
Patchy rain nearby
21°
Patchy rain nearby
💧 86% 💨 13.3 km/h 🌧️ 100%
8 PM
Patchy rain nearby
20°
Patchy rain nearby
💧 88% 💨 18 km/h 🌧️ 83%
9 PM
Clear
19°
Clear
💧 90% 💨 18.4 km/h
10 PM
Clear
18°
Clear
💧 92% 💨 15.1 km/h
11 PM
Clear
17°
Clear
💧 93% 💨 14.8 km/h

3-Day Forecast

Daily overview for Grand Blanc, Michigan

Today
Heavy rain
Heavy rain
23° / 17°
🌧️ 85% chance of rain
💧 Avg. humidity: 87%
💨 Max wind: 29.5 km/h
🌧️ Total precip: 22.18 mm
☀️ UV Index: 0.7
🌅 Sunrise: 06:53 AM
🌇 Sunset: 08:17 PM
🌙 Waning Crescent
🌑 Moon: 8% lit
Thu, Apr 16
Moderate rain
Moderate rain
19° / 13°
🌧️ 73% chance of rain
💧 Avg. humidity: 94%
💨 Max wind: 26.6 km/h
🌧️ Total precip: 10.74 mm
☀️ UV Index: 1.2
🌅 Sunrise: 06:51 AM
🌇 Sunset: 08:18 PM
🌙 Waning Crescent
🌑 Moon: 3% lit
Fri, Apr 17
Fog
Fog
16° / 12°
🌧️ 0% chance of rain
💧 Avg. humidity: 91%
💨 Max wind: 22 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.5
🌅 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 20°C, humidity 76%.
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.