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Cohasset, MN Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Cohasset, a city in Itasca County, Minnesota.

This Afternoon
67°F
Mostly Cloudy
Mostly cloudy. High near 67, with temperatures falling to around 65 in the afternoon. North wind around 5 mph.

7-day forecast for Cohasset

WhenTempForecastWindPrecip
This Afternoon 67°F Mostly Cloudy 5 mph N 1%
Tonight 50°F Slight Chance Rain Showers then Mostly Cloudy 0 to 5 mph N 20%
Sunday 63°F Partly Sunny 5 mph NE 0%
Sunday Night 39°F Mostly Cloudy 0 to 5 mph E 0%
Monday 61°F Mostly Sunny 0 to 5 mph E 0%
Monday Night 35°F Mostly Clear then Patchy Frost 0 to 5 mph SE 0%
Tuesday 63°F Patchy Frost then Sunny 0 to 5 mph SE 0%
Tuesday Night 39°F Mostly Clear 0 to 5 mph SE 0%
Wednesday 64°F Sunny 0 to 5 mph SE 0%
Wednesday Night 43°F Mostly Clear 5 mph SE 5%
Thursday 65°F Chance Rain Showers 5 to 10 mph SE 25%
Thursday Night 48°F Slight Chance Rain Showers then Mostly Cloudy 0 to 5 mph SE 24%
Friday 70°F Partly Sunny 0 to 5 mph S 4%
Friday Night 51°F Partly Cloudy 0 to 5 mph S 6%

Forecast source: National Weather Service (api.weather.gov) for Cohasset (47.242, -93.664). Updated through the day.

Growing snapshot for Cohasset

Last spring frost
May 16
First fall frost
Oct 1
Growing season
138 days
Hardiness zone
4a

More local growing data for Cohasset: nearby ZIP 55721 weather · frost dates · planting calendar · Minnesota frost dates

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Climate data from the nearest NOAA station, Pokegama Dam, Mn (5 mi from Cohasset). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.