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.
Overnight
41°F
Chance Light Rain
A chance of rain. Mostly cloudy, with a low around 41. South wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.
7-day forecast for Tonsina
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 41°F | Chance Light Rain | 20 mph S | 44% |
| Tuesday | 49°F | Chance Light Rain | 20 mph S | 43% |
| Tuesday Night | 43°F | Chance Light Rain | 15 to 20 mph S | 39% |
| Wednesday | 54°F | Slight Chance Light Rain | 10 to 15 mph S | 19% |
| Wednesday Night | 41°F | Partly Cloudy | 10 to 15 mph S | 13% |
| Thursday | 57°F | Mostly Sunny | 5 to 10 mph S | 8% |
| Thursday Night | 43°F | Partly Cloudy | 5 to 10 mph S | 13% |
| Friday | 61°F | Partly Sunny then Slight Chance Rain Showers | 5 to 10 mph SE | 15% |
| Friday Night | 44°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 10 mph S | 15% |
| Saturday | 60°F | Partly Sunny then Slight Chance Rain Showers | 5 mph W | 22% |
| Saturday Night | 45°F | Slight Chance Rain Showers then Mostly Cloudy | 5 mph SW | 22% |
| Sunday | 60°F | Partly Sunny then Chance Rain Showers | 5 mph W | 27% |
| Sunday Night | 44°F | Chance Rain Showers | 5 mph SW | 27% |
| Monday | 59°F | Chance Rain Showers | 5 mph W | 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 Aug 4, 2026.