Ann Arbor, MI Weather
Ann Arbor hourly forecast: next 24 hours
Today's high of 88°F (31°C) is about 8°F (4°C) above the typical August high of 80°F (27°C).
Current conditions in detail
Ann Arbor weather tomorrow (Friday, August 7)
Tomorrow in Ann Arbor looks partly cloudy, with a high of 87° and an overnight low of 66°. There is a 71% chance of rain - plan accordingly. Winds top out near 14 mph, and the UV index reaches 8 (high).
Ann Arbor 14-day forecast
About the weather in Ann Arbor
Located in Michigan, United States, Ann Arbor experiences a humid continental climate with warm summers and cold, often snowy winters. Afternoon temperatures peak near 82°F (28°C) in July and dip to about 32°F (0°C) in January, with around 36.7 inches (932 mm) of precipitation falling across the year.
Ann Arbor weather: quick facts
- Hottest month: July - highs near 82°F (28°C)
- Coldest month: January - highs near 32°F (0°C)
- Record high: 94°F (34°C) · Record low: -25°F (-32°C) (2015–2024)
- Wettest month: July (12 rainy days) · Sunniest: July (12.2 h sun/day)
- Climate type: humid continental - warm summers and cold, often snowy winters
- Snow: about 19 days a year
Temperatures through the year
The warmest stretch of the year centers on July. Highs average 82°F (28°C) and overnight lows stay near 64°F (18°C). The coolest month is January, with typical highs of 32°F (0°C) and lows around 19°F (-7°C). Based on 2015–2024 weather data, temperatures have reached as high as 94°F (34°C) and dropped as low as -25°F (-32°C).
Rain, sun and snow
July is usually the wettest month. It brings about 3.6 inches (91 mm) of rain over 12 days, while November is the driest. July brings the most sunshine, averaging 12.2 hours of sun a day. Snow falls on about 19 days in a typical year, mostly from November through April.
Season by season
Spring (March through May)
Spring in Ann Arbor is crisp but comfortable, with daytime highs averaging 57°F (14°C) and nights around 38°F (4°C); expect showers on roughly 36 days across the season, plus around 5 snowy days.
Summer (June through August)
Summer in Ann Arbor brings comfortable warmth, with daytime highs averaging 80°F (27°C) and nights around 62°F (17°C); expect showers on roughly 34 days across the season.
Fall (September through November)
Fall in Ann Arbor is mild, with daytime highs averaging 61°F (16°C) and nights around 46°F (8°C); expect showers on roughly 30 days across the season, plus around 2 snowy days.
Winter (December through February)
Winter in Ann Arbor is bitterly cold, with daytime highs averaging 36°F (2°C) and nights around 22°F (-6°C); expect showers on roughly 30 days across the season, plus around 12 snowy days. Wind makes those temperatures feel harsher than they sound - pair the forecast winds with the wind speed converter to judge conditions on exposed skin.
Average temperatures in Ann Arbor by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 32° | 19° | 10 | 2.5 in | 4.4 h/day | 75% |
| February | 36° | 19° | 9 | 2.5 in | 6.5 h/day | 73% |
| March | 46° | 28° | 10 | 3.2 in | 7.5 h/day | 67% |
| April | 56° | 37° | 13 | 3.4 in | 8.6 h/day | 67% |
| May | 69° | 50° | 12 | 3.6 in | 10.1 h/day | 68% |
| June | 78° | 59° | 12 | 3.5 in | 12.0 h/day | 66% |
| July | 82° | 64° | 12 | 3.6 in | 12.2 h/day | 70% |
| August | 80° | 63° | 11 | 3.5 in | 11.2 h/day | 72% |
| September | 74° | 58° | 9 | 2.9 in | 9.4 h/day | 74% |
| October | 61° | 46° | 11 | 3.4 in | 7.1 h/day | 73% |
| November | 47° | 34° | 9 | 2.3 in | 5.8 h/day | 73% |
| December | 39° | 27° | 10 | 2.5 in | 4.1 h/day | 77% |