Tonsina, AK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Tonsina, a community in Copper River Census Area County, Alaska.
Today
25°F
Chance Light Snow
A chance of snow. Mostly cloudy, with a high near 25. Southeast wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
7-day forecast for Tonsina
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 25°F | Chance Light Snow | 5 to 10 mph SE | 49% |
| Tonight | 20°F | Light Snow Likely | 5 mph SE | 72% |
| Wednesday | 29°F | Snow Showers | 5 to 15 mph SE | 78% |
| Wednesday Night | 20°F | Snow Showers Likely | 10 to 15 mph SE | 55% |
| Thursday | 24°F | Chance Snow Showers then Chance Light Snow | 5 to 10 mph SE | 38% |
| Thursday Night | 16°F | Slight Chance Light Snow | 5 mph N | 21% |
| Friday | 22°F | Chance Light Snow | 5 mph N | 44% |
| Friday Night | 15°F | Chance Light Snow | 5 mph E | 39% |
| Saturday | 21°F | Chance Light Snow | 5 mph E | 33% |
| Saturday Night | 12°F | Slight Chance Light Snow | 5 mph NW | 20% |
| Sunday | 21°F | Chance Light Snow | 5 mph S | 35% |
| Sunday Night | 11°F | Chance Light Snow | 5 mph SE | 33% |
| Monday | 17°F | Chance Light Snow | 5 mph SE | 36% |
| Monday Night | 11°F | Chance Light Snow | 5 mph NW | 29% |
Forecast source: National Weather Service (api.weather.gov) for Tonsina (61.530, -145.110). Updated through the day.
Growing snapshot for Tonsina
Growing season
72 days
More local growing data for Tonsina: 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 Tonsina). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.