Susitna, AK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Susitna, a community in Matanuska-Susitna Borough County, Alaska.
This Afternoon
35°F
Mostly Cloudy
Mostly cloudy, with a high near 35. Northwest wind around 10 mph.
7-day forecast for Susitna
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 35°F | Mostly Cloudy | 10 mph NW | 2% |
| Tonight | 31°F | Mostly Cloudy then Slight Chance Freezing Rain | 10 mph NW | 53% |
| Wednesday | 38°F | Chance Freezing Rain then Mostly Cloudy | 0 to 10 mph N | 53% |
| Wednesday Night | 27°F | Chance Light Rain then Slight Chance Freezing Rain | 5 to 10 mph NW | 30% |
| Thursday | 37°F | Partly Sunny | 5 to 10 mph N | 7% |
| Thursday Night | 28°F | Partly Cloudy | 5 to 10 mph N | 0% |
| Friday | 35°F | Mostly Sunny | 5 mph N | 8% |
| Friday Night | 26°F | Mostly Cloudy | 5 mph N | 11% |
| Saturday | 34°F | Partly Sunny | 5 mph N | 9% |
| Saturday Night | 24°F | Mostly Cloudy | 5 mph N | 9% |
| Sunday | 31°F | Mostly Cloudy | 5 mph N | 10% |
| Sunday Night | 24°F | Mostly Cloudy then Slight Chance Light Snow | 5 mph N | 16% |
| Monday | 32°F | Slight Chance Light Snow | 5 to 10 mph N | 16% |
| Monday Night | 23°F | Mostly Cloudy | 5 mph N | 10% |
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
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 Nov 4, 2026.