Ann Arbor, MI Weather & Growing Conditions
Overnight
61°F
Slight Chance Light Rain
A slight chance of rain after 5am. Mostly cloudy. Low around 61, with temperatures rising to around 63 overnight. South southeast wind around 13 mph, with gusts as high as 21 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 61°F | Slight Chance Light Rain | 13 mph SSE | 22% |
| Wednesday | 68°F | Light Rain | 13 to 18 mph S | 94% |
| Wednesday Night | 49°F | Light Rain then Mostly Cloudy | 9 to 14 mph SSW | 78% |
| Thursday | 60°F | Mostly Cloudy | 12 to 17 mph SW | 9% |
| Thursday Night | 42°F | Chance Light Rain | 3 to 9 mph W | 46% |
| Friday | 53°F | Chance Light Rain | 5 to 10 mph NW | 47% |
| Friday Night | 33°F | Chance Light Rain | 10 mph NW | 47% |
| Saturday | 51°F | Partly Sunny | 9 to 14 mph NW | 8% |
| Saturday Night | 30°F | Partly Cloudy | 7 mph WNW | 2% |
| Sunday | 56°F | Sunny | 7 to 14 mph W | 7% |
| Sunday Night | 32°F | Partly Cloudy | 7 to 12 mph W | 7% |
| Monday | 59°F | Mostly Sunny | 6 to 12 mph W | 2% |
| Monday Night | 36°F | Partly Cloudy | 9 mph WSW | 1% |
| Tuesday | 61°F | Mostly Sunny then Slight Chance Light Rain | 9 to 13 mph W | 15% |
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 Nov 4, 2026.