Dexter, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Dexter, a city in Washtenaw County, Michigan.
Today
68°F
Light Rain
Rain. Mostly cloudy. High near 68, with temperatures falling to around 66 in the afternoon. South wind 15 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Dexter
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 68°F | Light Rain | 15 to 18 mph S | 98% |
| Tonight | 48°F | Light Rain then Mostly Cloudy | 8 to 14 mph SSW | 78% |
| Thursday | 59°F | Mostly Cloudy | 10 to 17 mph SW | 10% |
| Thursday Night | 41°F | Chance Light Rain | 2 to 8 mph W | 52% |
| Friday | 52°F | Light Rain Likely | 3 to 10 mph NW | 55% |
| Friday Night | 32°F | Light Rain Likely | 10 mph NW | 55% |
| Saturday | 50°F | Partly Sunny | 8 to 13 mph NW | 8% |
| Saturday Night | 29°F | Partly Cloudy | 7 mph WNW | 2% |
| Sunday | 56°F | Mostly Sunny | 7 to 14 mph W | 8% |
| Sunday Night | 31°F | Partly Cloudy | 6 to 12 mph W | 8% |
| Monday | 59°F | Mostly Sunny | 6 to 10 mph W | 2% |
| Monday Night | 35°F | Partly Cloudy | 9 mph WSW | 2% |
| Tuesday | 61°F | Mostly Sunny then Slight Chance Light Rain | 8 to 13 mph W | 15% |
| Tuesday Night | 32°F | Slight Chance Light Rain | 2 to 8 mph WNW | 15% |
Forecast source: National Weather Service (api.weather.gov) for Dexter (42.332, -83.881). Updated through the day.
Growing snapshot for Dexter
Last spring frost
Apr 30
First fall frost
Oct 12
Growing season
163 days
Hardiness zone
6a
More local growing data for Dexter: nearby ZIP 48130 weather · frost dates · planting calendar · Michigan frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Chelsea, Mi (5.9 mi from Dexter). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.