Underwood, ND Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Underwood, a city in Mclean County, North Dakota.
This Afternoon
46°F
Mostly Cloudy
Mostly cloudy. High near 46, with temperatures falling to around 43 in the afternoon. Northwest wind 8 to 15 mph, with gusts as high as 24 mph.
7-day forecast for Underwood
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 46°F | Mostly Cloudy | 8 to 15 mph NW | 0% |
| Tonight | 26°F | Partly Cloudy | 7 mph NW | 0% |
| Wednesday | 51°F | Partly Sunny | 7 to 12 mph N | 0% |
| Wednesday Night | 25°F | Partly Cloudy | 5 to 8 mph N | 0% |
| Thursday | 43°F | Mostly Sunny | 6 mph NE | 0% |
| Thursday Night | 23°F | Partly Cloudy | 5 to 8 mph S | 0% |
| Friday | 51°F | Mostly Sunny | 9 mph SW | 0% |
| Friday Night | 30°F | Partly Cloudy | 6 to 9 mph SW | 2% |
| Saturday | 55°F | Mostly Sunny | 9 to 18 mph W | 3% |
| Saturday Night | 29°F | Mostly Clear | 5 to 10 mph W | 2% |
| Sunday | 57°F | Sunny | 5 to 12 mph SW | 0% |
| Sunday Night | 38°F | Partly Cloudy | 8 to 14 mph SW | 1% |
| Monday | 56°F | Sunny | 9 to 17 mph W | 0% |
| Monday Night | 31°F | Partly Cloudy | 7 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for Underwood (47.456, -101.141). Updated through the day.
Growing snapshot for Underwood
Last spring frost
May 10
First fall frost
Sep 29
Growing season
139 days
Hardiness zone
4a
More local growing data for Underwood: nearby ZIP 58576 weather · frost dates · planting calendar · North Dakota frost dates
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Washburn
White Shield
Climate data from the nearest NOAA station, Underwood, Nd (3.4 mi from Underwood). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.