Fort Peck, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fort Peck, a town in Mccone County, Montana.
Overnight
48°F
Mostly Clear
Mostly clear, with a low around 48. West southwest wind around 9 mph.
7-day forecast for Fort Peck
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 48°F | Mostly Clear | 9 mph WSW | 0% |
| Tuesday | 70°F | Sunny | 12 mph WNW | 0% |
| Tuesday Night | 56°F | Mostly Clear | 5 to 9 mph SW | 1% |
| Wednesday | 77°F | Partly Sunny | 6 to 10 mph WSW | 0% |
| Wednesday Night | 58°F | Partly Cloudy | 3 to 10 mph WSW | 0% |
| Thursday | 80°F | Sunny | 3 to 7 mph W | 0% |
| Thursday Night | 59°F | Mostly Clear | 10 mph NNE | 0% |
| Friday | 80°F | Sunny | 7 mph E | 0% |
| Friday Night | 60°F | Mostly Clear | 9 to 13 mph ENE | 0% |
| Saturday | 80°F | Sunny | 10 mph NE | 0% |
| Saturday Night | 61°F | Mostly Clear | 9 to 15 mph ENE | 2% |
| Sunday | 79°F | Mostly Sunny | 14 mph ENE | 1% |
| Sunday Night | 60°F | Partly Cloudy | 12 to 15 mph NE | 12% |
| Monday | 77°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 14 mph ENE | 23% |
Forecast source: National Weather Service (api.weather.gov) for Fort Peck (48.007, -106.455). Updated through the day.
Growing snapshot for Fort Peck
Last spring frost
May 8
First fall frost
Oct 1
Growing season
145 days
Hardiness zone
4a
More local growing data for Fort Peck: nearby ZIP 59223 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Ft Peck Pwr Plt, Mt (11.7 mi from Fort Peck). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.