Perth, ND Weather & Growing Conditions
This Afternoon
46°F
Mostly Cloudy
Mostly cloudy. High near 46, with temperatures falling to around 37 in the afternoon. North northwest wind around 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 46°F | Mostly Cloudy | 8 mph NNW | 1% |
| Tonight | 28°F | Mostly Cloudy | 8 mph NNW | 1% |
| Wednesday | 47°F | Mostly Sunny | 8 to 14 mph N | 1% |
| Wednesday Night | 27°F | Mostly Cloudy | 12 to 15 mph N | 0% |
| Thursday | 38°F | Partly Sunny | 3 to 14 mph NE | 0% |
| Thursday Night | 22°F | Partly Cloudy | 3 to 10 mph SSE | 0% |
| Friday | 46°F | Mostly Sunny | 8 to 13 mph SSW | 0% |
| Friday Night | 29°F | Partly Cloudy | 7 to 10 mph SW | 0% |
| Saturday | 51°F | Mostly Sunny | 10 to 20 mph W | 8% |
| Saturday Night | 31°F | Partly Cloudy | 8 to 13 mph W | 4% |
| Sunday | 52°F | Mostly Sunny | 10 mph SW | 0% |
| Sunday Night | 36°F | Partly Cloudy | 10 to 17 mph SW | 0% |
| Monday | 52°F | Mostly Sunny | 17 to 25 mph W | 0% |
| Monday Night | 30°F | Partly Cloudy | 7 to 14 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Perth, ND
Last spring frost
May 20
First fall frost
Sep 26
Growing season
128 days
Hardiness zone
3b
Explore more for Perth, ND: full frost dates · planting calendar · North Dakota frost dates
Climate data from the nearest NOAA station, Rolla 1Ne, Nd (9.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.