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McGrath, AK Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for McGrath, a city in Yukon-Koyukuk Census Area County, Alaska.

Today
48°F
Slight Chance Rain Showers
A slight chance of rain showers. Mostly cloudy, with a high near 48. North wind around 0 mph. Chance of precipitation is 20%.

7-day forecast for McGrath

WhenTempForecastWindPrecip
Today 48°F Slight Chance Rain Showers 0 mph 24%
Tonight 37°F Chance Rain Showers 0 to 5 mph N 31%
Sunday 44°F Chance Rain Showers 5 to 10 mph NW 32%
Sunday Night 30°F Mostly Cloudy 5 to 10 mph NW 13%
Monday 42°F Partly Sunny 0 to 5 mph NW 6%
Monday Night 30°F Mostly Cloudy 0 to 5 mph NW 5%
Tuesday 44°F Mostly Cloudy 0 mph 0%
Tuesday Night 29°F Mostly Cloudy 0 mph 1%
Wednesday 45°F Mostly Sunny 0 mph 1%
Wednesday Night 30°F Mostly Cloudy then Slight Chance Rain And Snow Showers 0 mph 17%
Thursday 48°F Chance Rain And Snow Showers 0 to 10 mph E 41%
Thursday Night 37°F Chance Rain Showers 10 to 15 mph E 47%
Friday 51°F Chance Rain Showers 10 mph SE 46%
Friday Night 37°F Chance Rain Showers 5 to 10 mph SE 46%

Forecast source: National Weather Service (api.weather.gov) for McGrath (62.939, -155.568). Updated through the day.

Growing snapshot for McGrath

Last spring frost
May 13
First fall frost
Sep 13
Growing season
120 days

More local growing data for McGrath: nearby ZIP 99675 weather · frost dates · planting calendar · Alaska frost dates

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Climate data from the nearest NOAA station, Mcgrath Ap, Ak (13.7 mi from McGrath). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.