Harman US

Marmarth, ND Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Marmarth, a city in Bowman County, North Dakota.

Tonight
23°F
Mostly Clear
Mostly clear. Low around 23, with temperatures rising to around 27 overnight. West wind 0 to 7 mph.

7-day forecast for Marmarth

WhenTempForecastWindPrecip
Tonight 23°F Mostly Clear 0 to 7 mph W 0%
Wednesday 53°F Mostly Sunny 2 to 12 mph NW 0%
Wednesday Night 25°F Mostly Cloudy 1 to 6 mph W 0%
Thursday 55°F Mostly Sunny 0 to 7 mph S 0%
Thursday Night 28°F Partly Cloudy 3 to 7 mph SW 0%
Friday 54°F Sunny 3 to 14 mph W 0%
Friday Night 32°F Partly Cloudy 6 to 10 mph SW 4%
Saturday 57°F Sunny 10 to 25 mph W 4%
Saturday Night 29°F Mostly Clear 3 to 8 mph SW 0%
Sunday 65°F Sunny 5 to 14 mph SW 0%
Sunday Night 37°F Partly Cloudy 9 mph W 0%
Monday 58°F Sunny 7 to 15 mph NW 0%
Monday Night 32°F Partly Cloudy 5 mph SW 1%
Tuesday 60°F Mostly Sunny 3 to 14 mph SW 1%

Forecast source: National Weather Service (api.weather.gov) for Marmarth (46.301, -103.935). Updated through the day.

Growing snapshot for Marmarth

Last spring frost
May 16
First fall frost
Sep 26
Growing season
132 days
Hardiness zone
4a

More local growing data for Marmarth: nearby ZIP 58643 weather · frost dates · planting calendar · North Dakota frost dates

Nearby towns & communities

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Climate data from the nearest NOAA station, Baker Muni Ap, Mt (17 mi from Marmarth). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.