Middletown, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Middletown, a community in Shiawassee County, Michigan.
Today
70°F
Light Rain
Rain. Mostly cloudy. High near 70, with temperatures falling to around 66 in the afternoon. South wind around 14 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Middletown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 70°F | Light Rain | 14 mph S | 84% |
| Tonight | 49°F | Light Rain then Mostly Cloudy | 8 to 12 mph SW | 29% |
| Thursday | 58°F | Chance Light Rain | 9 to 14 mph SW | 25% |
| Thursday Night | 41°F | Chance Light Rain | 7 to 10 mph W | 58% |
| Friday | 50°F | Chance Light Rain | 12 mph NW | 58% |
| Friday Night | 33°F | Chance Light Rain | 10 mph NW | 58% |
| Saturday | 50°F | Partly Sunny | 9 mph NW | 7% |
| Saturday Night | 30°F | Mostly Clear | 6 mph W | 1% |
| Sunday | 55°F | Sunny | 6 to 14 mph W | 6% |
| Sunday Night | 32°F | Mostly Clear | 5 to 10 mph W | 6% |
| Monday | 58°F | Mostly Sunny | 6 to 10 mph W | 1% |
| Monday Night | 38°F | Mostly Clear | 9 mph WSW | 4% |
| Tuesday | 60°F | Sunny | 7 to 10 mph W | 15% |
| Tuesday Night | 34°F | Partly Cloudy | 2 to 7 mph WNW | 15% |
Forecast source: National Weather Service (api.weather.gov) for Middletown (42.987, -84.143). Updated through the day.
Growing snapshot for Middletown
Last spring frost
May 1
First fall frost
Oct 15
Growing season
164 days
Hardiness zone
6a
More local growing data for Middletown: nearby ZIP 48867 weather · frost dates · planting calendar · Michigan frost dates
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Owosso
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Vernon
Climate data from the nearest NOAA station, Owosso Wwtp, Mi (0.8 mi from Middletown). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.