Gaastra, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Gaastra, a city in Iron County, Michigan.
Today
63°F
Rain Showers
Rain showers and patchy fog. Mostly cloudy. High near 63, with temperatures falling to around 58 in the afternoon. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Gaastra
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 63°F | Rain Showers | 5 to 10 mph S | 75% |
| Tonight | 41°F | Rain Showers | 5 to 10 mph SW | 81% |
| Thursday | 46°F | Rain Showers | 10 to 15 mph NW | 77% |
| Thursday Night | 26°F | Slight Chance Rain And Snow Showers then Cloudy | 10 to 15 mph N | 22% |
| Friday | 41°F | Partly Sunny | 5 to 10 mph N | 9% |
| Friday Night | 21°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Saturday | 46°F | Sunny | 0 to 5 mph W | 0% |
| Saturday Night | 26°F | Partly Cloudy | 5 mph W | 6% |
| Sunday | 49°F | Mostly Sunny | 5 to 10 mph W | 13% |
| Sunday Night | 28°F | Partly Cloudy | 0 to 5 mph W | 4% |
| Monday | 54°F | Partly Sunny | 5 to 10 mph SW | 3% |
| Monday Night | 32°F | Partly Cloudy | 5 to 10 mph W | 7% |
| Tuesday | 51°F | Slight Chance Rain Showers then Mostly Sunny | 5 to 10 mph NW | 15% |
| Tuesday Night | 28°F | Mostly Cloudy | 0 to 5 mph NW | 7% |
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 Nov 4, 2026.