Big Lake, AK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Big Lake, a community in Matanuska-Susitna Borough County, Alaska.
This Afternoon
36°F
Mostly Cloudy
Mostly cloudy, with a high near 36. North wind around 10 mph.
7-day forecast for Big Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 36°F | Mostly Cloudy | 10 mph N | 5% |
| Tonight | 30°F | Mostly Cloudy then Chance Rain And Snow Showers | 5 mph N | 32% |
| Wednesday | 39°F | Chance Rain And Snow Showers | 5 mph N | 43% |
| Wednesday Night | 28°F | Slight Chance Rain And Snow Showers | 5 mph N | 21% |
| Thursday | 35°F | Slight Chance Rain And Snow Showers then Partly Sunny | 5 mph N | 16% |
| Thursday Night | 25°F | Partly Cloudy | 5 mph N | 2% |
| Friday | 34°F | Mostly Cloudy | 5 mph N | 7% |
| Friday Night | 25°F | Mostly Cloudy | 0 to 5 mph N | 7% |
| Saturday | 32°F | Mostly Cloudy | 5 mph N | 4% |
| Saturday Night | 23°F | Mostly Cloudy | 0 to 5 mph N | 5% |
| Sunday | 30°F | Mostly Cloudy | 0 to 5 mph N | 6% |
| Sunday Night | 22°F | Mostly Cloudy | 5 mph N | 7% |
| Monday | 29°F | Mostly Cloudy | 5 mph N | 7% |
| Monday Night | 22°F | Mostly Cloudy | 5 mph N | 3% |
Forecast source: National Weather Service (api.weather.gov) for Big Lake (61.516, -149.976). Updated through the day.
Growing snapshot for Big Lake
Last spring frost
May 29
First fall frost
Sep 7
Growing season
100 days
More local growing data for Big Lake: nearby ZIP 99652 weather · frost dates · planting calendar · Alaska frost dates
Nearby towns & communities
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Chase
Chickaloon
Farm Loop
Fishhook
Gateway
Glacier View
Houston
Knik-Fairview
Lazy Mountain
Meadow Lakes
North Lakes
Palmer
Petersville
Point MacKenzie
South Lakes
Susitna
Susitna North
Sutton-Alpine
Talkeetna
Tanaina
Trapper Creek
Wasilla
Willow
Climate data from the nearest NOAA station, Whites Crossing, Ak (13.2 mi from Big Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.