Frankenmuth, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Frankenmuth, a city in Saginaw County, Michigan.
This Afternoon
76°F
Mostly Sunny
Mostly sunny. High near 76, with temperatures falling to around 74 in the afternoon. South southwest wind around 16 mph, with gusts as high as 29 mph.
7-day forecast for Frankenmuth
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 76°F | Mostly Sunny | 16 mph SSW | 2% |
| Tonight | 61°F | Mostly Cloudy | 13 mph S | 3% |
| Wednesday | 71°F | Light Rain | 13 to 17 mph S | 88% |
| Wednesday Night | 50°F | Light Rain then Mostly Cloudy | 8 to 14 mph SSW | 86% |
| Thursday | 60°F | Mostly Cloudy then Chance Light Rain | 10 to 15 mph SW | 25% |
| Thursday Night | 44°F | Chance Light Rain | 3 to 9 mph W | 49% |
| Friday | 53°F | Chance Light Rain | 5 to 13 mph NNW | 53% |
| Friday Night | 36°F | Chance Light Rain | 7 to 12 mph NNW | 42% |
| Saturday | 51°F | Slight Chance Light Rain then Partly Sunny | 9 mph NW | 23% |
| Saturday Night | 31°F | Partly Cloudy | 5 mph WSW | 5% |
| Sunday | 56°F | Mostly Sunny then Slight Chance Light Rain | 5 to 13 mph WSW | 15% |
| Sunday Night | 32°F | Slight Chance Light Rain then Partly Cloudy | 6 to 10 mph WNW | 15% |
| Monday | 58°F | Mostly Sunny | 6 to 14 mph W | 10% |
| Monday Night | 37°F | Partly Cloudy | 8 to 12 mph WSW | 10% |
Forecast source: National Weather Service (api.weather.gov) for Frankenmuth (43.333, -83.739). Updated through the day.
Growing snapshot for Frankenmuth
Last spring frost
May 3
First fall frost
Oct 12
Growing season
161 days
Hardiness zone
6a
More local growing data for Frankenmuth: nearby ZIP 48734 weather · frost dates · planting calendar · Michigan frost dates
Nearby towns & communities
Birch Run
Bridgeport
Buena Vista
Burt
Chesaning
Freeland
Hemlock
Merrill
Oakley
Robin Glen-Indiantown
Saginaw
Shields
St. Charles
Zilwaukee
Climate data from the nearest NOAA station, Frankenmuth 1Se, Mi (3.1 mi from Frankenmuth). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.