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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| 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.