Glennallen, AK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Glennallen, a community in Copper River Census Area County, Alaska.
Today
66°F
Mostly Sunny
Mostly sunny, with a high near 66. South wind around 15 mph, with gusts as high as 25 mph.
7-day forecast for Glennallen
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 66°F | Mostly Sunny | 15 mph S | 12% |
| Tonight | 47°F | Partly Cloudy | 10 to 15 mph SE | 7% |
| Wednesday | 68°F | Mostly Sunny | 5 to 10 mph SE | 9% |
| Wednesday Night | 47°F | Partly Cloudy | 5 to 10 mph S | 4% |
| Thursday | 71°F | Mostly Sunny | 0 to 5 mph S | 4% |
| Thursday Night | 50°F | Partly Cloudy | 5 mph S | 7% |
| Friday | 71°F | Partly Sunny | 5 mph SW | 8% |
| Friday Night | 49°F | Mostly Cloudy | 5 mph SW | 11% |
| Saturday | 71°F | Mostly Cloudy | 5 mph W | 12% |
| Saturday Night | 49°F | Mostly Cloudy | 5 mph W | 12% |
| Sunday | 71°F | Partly Sunny then Slight Chance Rain Showers | 5 mph NW | 15% |
| Sunday Night | 49°F | Slight Chance Rain Showers | 5 mph N | 15% |
| Monday | 71°F | Mostly Cloudy then Slight Chance Rain Showers | 5 mph N | 22% |
| Monday Night | 48°F | Slight Chance Rain Showers | 0 to 5 mph NE | 22% |
Forecast source: National Weather Service (api.weather.gov) for Glennallen (62.153, -145.841). Updated through the day.
Growing snapshot for Glennallen
Growing season
72 days
More local growing data for Glennallen: nearby ZIP 99573 weather · frost dates · planting calendar · Alaska frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Tonsina, Ak (17.4 mi from Glennallen). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.