Gaastra, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Gaastra, a city in Iron County, Michigan.
Today
77°F
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms before noon, then a chance of showers and thunderstorms between noon and 2pm. Mostly cloudy. High near 77, with temperatures falling to around 74 in the afternoon. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
7-day forecast for Gaastra
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 77°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 10 mph W | 26% |
| Tonight | 50°F | Mostly Cloudy | 0 to 5 mph N | 9% |
| Wednesday | 75°F | Mostly Sunny | 0 to 5 mph NW | 1% |
| Wednesday Night | 49°F | Partly Cloudy | 0 mph | 0% |
| Thursday | 81°F | Sunny | 0 to 10 mph SW | 1% |
| Thursday Night | 58°F | Mostly Clear | 5 mph SW | 1% |
| Friday | 84°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 15% |
| Friday Night | 60°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 mph SW | 27% |
| Saturday | 81°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 mph SW | 24% |
| Saturday Night | 57°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 46% |
| Sunday | 79°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 46% |
| Sunday Night | 54°F | Chance Showers And Thunderstorms | 0 to 5 mph NW | 33% |
| Monday | 78°F | Slight Chance Rain Showers | 0 to 5 mph NW | 24% |
| Monday Night | 53°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 0 to 5 mph N | 24% |
Forecast source: National Weather Service (api.weather.gov) for Gaastra (46.056, -88.605). Updated through the day.
Growing snapshot for Gaastra
Last spring frost
Jun 4
First fall frost
Sep 10
Growing season
95 days
Hardiness zone
4a
More local growing data for Gaastra: nearby ZIP 49915 weather · frost dates · planting calendar · Michigan frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Stambaugh 2Sse, Mi (0.6 mi from Gaastra). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.