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.
This Afternoon
36°F
Sunny
Sunny. High near 36, with temperatures falling to around 31 in the afternoon. North wind around 10 mph.
7-day forecast for McGrath
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 36°F | Sunny | 10 mph N | 0% |
| Tonight | 24°F | Mostly Cloudy | 0 to 5 mph NE | 0% |
| Wednesday | 32°F | Partly Sunny | 0 to 5 mph NE | 11% |
| Wednesday Night | 22°F | Mostly Cloudy then Slight Chance Light Snow | 0 mph | 21% |
| Thursday | 29°F | Slight Chance Light Snow then Partly Sunny | 0 mph | 21% |
| Thursday Night | 19°F | Mostly Cloudy | 0 mph | 13% |
| Friday | 26°F | Mostly Cloudy | 0 to 5 mph N | 13% |
| Friday Night | 19°F | Mostly Cloudy | 0 to 5 mph N | 2% |
| Saturday | 25°F | Cloudy | 0 mph | 1% |
| Saturday Night | 17°F | Cloudy | 0 mph | 2% |
| Sunday | 23°F | Mostly Cloudy | 0 mph | 0% |
| Sunday Night | 15°F | Mostly Cloudy | 0 mph | 0% |
| Monday | 21°F | Mostly Cloudy | 0 mph | 1% |
| Monday Night | 15°F | Mostly Cloudy | 0 mph | 3% |
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 Nov 4, 2026.