Cantwell, AK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cantwell, a community in Denali Borough County, Alaska.
This Afternoon
29°F
Mostly Sunny
Mostly sunny. High near 29, with temperatures falling to around 20 in the afternoon. East wind around 10 mph.
7-day forecast for Cantwell
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 29°F | Mostly Sunny | 10 mph E | 4% |
| Tonight | 17°F | Mostly Cloudy then Slight Chance Light Snow | 10 mph E | 22% |
| Wednesday | 30°F | Chance Light Snow | 10 mph E | 44% |
| Wednesday Night | 16°F | Chance Light Snow | 10 mph SE | 46% |
| Thursday | 26°F | Chance Light Snow | 5 mph SE | 46% |
| Thursday Night | 11°F | Mostly Cloudy then Slight Chance Light Snow | 5 mph N | 15% |
| Friday | 21°F | Slight Chance Light Snow then Mostly Cloudy | 5 mph N | 15% |
| Friday Night | 11°F | Mostly Cloudy | 5 mph NE | 8% |
| Saturday | 22°F | Mostly Cloudy | 5 mph E | 8% |
| Saturday Night | 8°F | Mostly Cloudy | 0 to 5 mph E | 2% |
| Sunday | 19°F | Mostly Cloudy | 0 to 5 mph E | 3% |
| Sunday Night | 7°F | Mostly Cloudy | 5 to 10 mph E | 5% |
| Monday | 18°F | Partly Sunny | 5 mph E | 5% |
| Monday Night | 8°F | Mostly Cloudy | 5 mph SE | 4% |
Forecast source: National Weather Service (api.weather.gov) for Cantwell (63.411, -148.750). Updated through the day.
Growing snapshot for Cantwell
Last spring frost
Jun 6
First fall frost
Aug 25
Growing season
77 days
More local growing data for Cantwell: nearby ZIP 99755 weather · frost dates · planting calendar · Alaska frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Mckinley Park, Ak (7.8 mi from Cantwell). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.