Tanaina, AK Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Tanaina, a community in Matanuska-Susitna Borough County, Alaska.

This Afternoon

41°F

Mostly Cloudy

Mostly cloudy, with a high near 41. Northeast wind around 20 mph, with gusts as high as 30 mph.

7-day forecast for Tanaina

When	Temp	Forecast	Wind	Precip
This Afternoon	41°F	Mostly Cloudy	20 mph NE	1%
Tonight	36°F	Mostly Cloudy then Slight Chance Light Rain	15 to 20 mph NE	20%
Wednesday	41°F	Slight Chance Light Rain then Mostly Cloudy	10 to 15 mph NE	20%
Wednesday Night	30°F	Slight Chance Light Rain then Mostly Cloudy	10 mph NE	18%
Thursday	39°F	Partly Sunny	5 mph NE	2%
Thursday Night	29°F	Partly Cloudy	10 mph NE	0%
Friday	38°F	Partly Sunny	10 mph NE	4%
Friday Night	28°F	Mostly Cloudy	5 to 10 mph NE	4%
Saturday	36°F	Partly Sunny	0 to 5 mph NE	2%
Saturday Night	26°F	Mostly Cloudy	0 mph	4%
Sunday	36°F	Mostly Cloudy	0 mph	5%
Sunday Night	27°F	Mostly Cloudy	0 to 5 mph NE	5%
Monday	36°F	Partly Sunny	5 mph NE	5%
Monday Night	25°F	Mostly Cloudy	5 mph NE	3%

Forecast source: National Weather Service (api.weather.gov) for Tanaina (61.657, -149.428). Updated through the day.

Growing snapshot for Tanaina

Last spring frost

May 16

First fall frost

Sep 23

Growing season

128 days

More local growing data for Tanaina: nearby ZIP 99654 weather · frost dates · planting calendar · Alaska frost dates

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Climate data from the nearest NOAA station, Anderson Lake, Ak (3 mi from Tanaina). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.