Susitna, AK Weather & Growing Conditions

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

Overnight

52°F

Rain

Rain. Cloudy, with a low around 52. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.

7-day forecast for Susitna

When	Temp	Forecast	Wind	Precip
Overnight	52°F	Rain	10 mph S	89%
Tuesday	60°F	Light Rain	5 to 10 mph S	83%
Tuesday Night	52°F	Light Rain Likely	0 to 5 mph SE	65%
Wednesday	63°F	Chance Light Rain	0 mph	51%
Wednesday Night	50°F	Chance Light Rain	0 mph	45%
Thursday	67°F	Chance Light Rain	0 to 5 mph SE	45%
Thursday Night	50°F	Slight Chance Light Rain	5 mph S	20%
Friday	68°F	Slight Chance Light Rain then Slight Chance Rain Showers	5 mph S	20%
Friday Night	50°F	Mostly Cloudy	0 to 5 mph S	10%
Saturday	73°F	Partly Sunny	0 mph	9%
Saturday Night	51°F	Mostly Cloudy	0 mph	7%
Sunday	74°F	Mostly Cloudy	0 mph	9%
Sunday Night	51°F	Mostly Cloudy	0 mph	13%
Monday	74°F	Partly Sunny then Slight Chance Rain Showers	0 mph	16%

Forecast source: National Weather Service (api.weather.gov) for Susitna (61.540, -150.588). Updated through the day.

Growing snapshot for Susitna

Last spring frost

May 29

First fall frost

Sep 7

Growing season

100 days

More local growing data for Susitna: nearby ZIP 99652 weather · frost dates · planting calendar · Alaska frost dates

Nearby towns & communities

Big Lake Buffalo Soapstone Butte Chase Chickaloon Farm Loop Fishhook Gateway Glacier View Houston Knik-Fairview Lazy Mountain Meadow Lakes North Lakes Palmer Petersville Point MacKenzie South Lakes Susitna North Sutton-Alpine Talkeetna Tanaina Trapper Creek Wasilla Willow

All Alaska locations ›

Climate data from the nearest NOAA station, Whites Crossing, Ak (13.2 mi from Susitna). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.