Ann Arbor, MI Weather & Growing Conditions
This Afternoon
66°F
Showers And Thunderstorms Likely
Rain showers likely before 2pm, then showers and thunderstorms likely. Cloudy. High near 66, with temperatures falling to around 64 in the afternoon. East southeast wind around 9 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 66°F | Showers And Thunderstorms Likely | 9 mph ESE | 73% |
| Tonight | 59°F | Patchy Fog | 5 to 8 mph ESE | 94% |
| Sunday | 69°F | Chance Rain Showers | 6 to 13 mph NNE | 47% |
| Sunday Night | 51°F | Mostly Cloudy | 13 mph NE | 4% |
| Monday | 62°F | Mostly Cloudy | 12 to 15 mph NE | 4% |
| Monday Night | 48°F | Mostly Cloudy | 14 mph NE | 6% |
| Tuesday | 62°F | Partly Sunny | 17 mph NE | 12% |
| Tuesday Night | 50°F | Chance Rain Showers | 17 mph ENE | 43% |
| Wednesday | 61°F | Chance Rain Showers | 14 to 17 mph ENE | 53% |
| Wednesday Night | 51°F | Chance Rain Showers | 9 to 14 mph ENE | 52% |
| Thursday | 64°F | Slight Chance Rain Showers then Partly Sunny | 12 mph NE | 16% |
| Thursday Night | 50°F | Mostly Cloudy | 6 to 9 mph NE | 12% |
| Friday | 68°F | Mostly Sunny | 7 to 10 mph NNE | 7% |
| Friday Night | 50°F | Partly Cloudy | 8 mph NE | 6% |
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 (2.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.