Crystal Falls, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Crystal Falls, a city in Iron County, Michigan.
Tonight
56°F
Rain Showers
Rain showers and patchy fog. Cloudy, with a low around 56. Southeast wind around 5 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Crystal Falls
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 56°F | Rain Showers | 5 mph SE | 95% |
| Wednesday | 63°F | Patchy Fog | 5 to 10 mph SE | 91% |
| Wednesday Night | 44°F | Rain Showers | 5 mph SW | 89% |
| Thursday | 50°F | Rain Showers | 5 to 10 mph NW | 98% |
| Thursday Night | 29°F | Chance Rain Showers then Cloudy | 10 to 15 mph N | 28% |
| Friday | 42°F | Partly Sunny | 5 to 10 mph N | 6% |
| Friday Night | 23°F | Partly Cloudy | 0 to 5 mph NW | 3% |
| Saturday | 48°F | Mostly Sunny | 0 to 5 mph W | 1% |
| Saturday Night | 28°F | Partly Cloudy | 0 to 5 mph W | 12% |
| Sunday | 52°F | Mostly Sunny then Slight Chance Rain Showers | 5 to 10 mph NW | 15% |
| Sunday Night | 30°F | Partly Cloudy | 5 mph W | 6% |
| Monday | 54°F | Partly Sunny | 5 to 10 mph SW | 2% |
| Monday Night | 34°F | Partly Cloudy | 5 to 10 mph W | 2% |
| Tuesday | 52°F | Mostly Sunny | 5 to 10 mph NW | 2% |
Forecast source: National Weather Service (api.weather.gov) for Crystal Falls (46.090, -88.321). Updated through the day.
Growing snapshot for Crystal Falls
Last spring frost
Jun 6
First fall frost
Sep 9
Growing season
94 days
Hardiness zone
4a
More local growing data for Crystal Falls: nearby ZIP 49920 weather · frost dates · planting calendar · Michigan frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Amasa 1W, Mi (9.9 mi from Crystal Falls). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.