Ann Arbor, MI Weather & Growing Conditions
Tonight
60°F
Rain Showers Likely
A slight chance of rain showers before midnight, then patchy fog and a slight chance of rain showers between midnight and 1am, then rain showers likely and patchy fog. Cloudy, with a low around 60. East northeast wind 2 to 6 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 60°F | Rain Showers Likely | 2 to 6 mph ENE | 97% |
| Sunday | 68°F | Patchy Fog | 6 to 12 mph NNE | 72% |
| Sunday Night | 51°F | Slight Chance Rain Showers then Mostly Cloudy | 12 mph NE | 16% |
| Monday | 64°F | Partly Sunny | 14 mph NE | 7% |
| Monday Night | 49°F | Mostly Cloudy | 13 mph NE | 7% |
| Tuesday | 62°F | Mostly Cloudy then Slight Chance Rain Showers | 13 to 16 mph NE | 17% |
| Tuesday Night | 51°F | Chance Rain Showers | 16 mph ENE | 44% |
| Wednesday | 61°F | Chance Rain Showers | 16 mph ENE | 53% |
| Wednesday Night | 52°F | Chance Rain Showers | 9 to 14 mph ENE | 53% |
| Thursday | 64°F | Slight Chance Rain Showers then Partly Sunny | 12 mph ENE | 17% |
| Thursday Night | 51°F | Mostly Cloudy | 5 to 8 mph NE | 9% |
| Friday | 69°F | Mostly Sunny | 8 mph NE | 9% |
| Friday Night | 50°F | Partly Cloudy | 3 to 7 mph NNE | 4% |
| Saturday | 71°F | Mostly Sunny | 7 mph NNE | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Ann Arbor, MI
Last spring frost
May 3
First fall frost
Oct 13
Growing season
160 days
Hardiness zone
6a
Explore more for Ann Arbor, MI: full frost dates · planting calendar · Michigan frost dates
Climate data from the nearest NOAA station, Ann Arbor U Of Mich, Mi (2.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.