Melstone, MT Weather & Growing Conditions
Overnight
43°F
Mostly Clear
Mostly clear. Low around 43, with temperatures rising to around 45 overnight. South southwest wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 43°F | Mostly Clear | 3 mph SSW | 0% |
| Tuesday | 75°F | Sunny | 3 to 7 mph WNW | 0% |
| Tuesday Night | 50°F | Partly Cloudy | 5 mph ESE | 1% |
| Wednesday | 85°F | Mostly Sunny | 6 mph SW | 0% |
| Wednesday Night | 54°F | Partly Cloudy | 2 to 6 mph NE | 0% |
| Thursday | 92°F | Sunny | 2 to 10 mph WSW | 0% |
| Thursday Night | 57°F | Mostly Clear | 2 to 9 mph NE | 0% |
| Friday | 95°F | Sunny | 2 to 8 mph S | 0% |
| Friday Night | 61°F | Mostly Clear | 6 to 10 mph NNE | 0% |
| Saturday | 93°F | Sunny | 5 to 15 mph NW | 0% |
| Saturday Night | 62°F | Partly Cloudy | 6 to 10 mph NE | 3% |
| Sunday | 92°F | Mostly Sunny | 5 to 14 mph NNE | 0% |
| Sunday Night | 62°F | Partly Cloudy | 8 to 12 mph NE | 6% |
| Monday | 89°F | Mostly Sunny | 7 to 12 mph NE | 6% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Melstone, MT
Last spring frost
May 10
First fall frost
Sep 29
Growing season
141 days
Hardiness zone
4b
Explore more for Melstone, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Melstone, Mt (6.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.