Crystal Falls, MI Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Crystal Falls, a city in Iron County, Michigan.
Today
78°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 3pm. Mostly cloudy. High near 78, with temperatures falling to around 75 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 Crystal Falls
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 78°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 10 mph W | 27% |
| Tonight | 51°F | Mostly Cloudy | 0 to 5 mph N | 10% |
| Wednesday | 76°F | Mostly Sunny | 0 to 5 mph W | 2% |
| Wednesday Night | 49°F | Partly Cloudy | 0 to 5 mph S | 0% |
| Thursday | 81°F | Sunny | 0 to 10 mph SW | 1% |
| Thursday Night | 58°F | Mostly Clear | 5 mph SW | 2% |
| Friday | 85°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 | 33% |
| Saturday | 82°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 to 10 mph W | 26% |
| Saturday Night | 57°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 46% |
| Sunday | 79°F | Chance Showers And Thunderstorms | 5 to 10 mph W | 46% |
| Sunday Night | 54°F | Chance Showers And Thunderstorms | 0 to 5 mph NW | 33% |
| Monday | 79°F | Slight Chance Rain Showers | 0 to 5 mph NW | 23% |
| Monday Night | 54°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 0 to 5 mph N | 23% |
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 Aug 4, 2026.