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.
Today
54°F
Light Rain Likely
Rain likely. Cloudy, with a high near 54. North wind around 5 mph. Chance of precipitation is 60%.
7-day forecast for Big Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 54°F | Light Rain Likely | 5 mph N | 57% |
| Tonight | 42°F | Light Rain | 5 mph W | 86% |
| Saturday | 54°F | Light Rain then Chance Rain Showers | 5 to 10 mph NE | 77% |
| Saturday Night | 41°F | Chance Rain Showers then Slight Chance Light Rain | 5 to 10 mph N | 54% |
| Sunday | 56°F | Slight Chance Light Rain | 0 to 10 mph NW | 18% |
| Sunday Night | 37°F | Light Rain Likely | 0 to 5 mph NW | 77% |
| Monday | 53°F | Rain Showers Likely | 0 to 5 mph W | 77% |
| Monday Night | 34°F | Chance Rain Showers | 0 to 5 mph N | 38% |
| Tuesday | 54°F | Partly Sunny | 5 mph N | 10% |
| Tuesday Night | 32°F | Partly Cloudy | 0 to 5 mph NW | 9% |
| Wednesday | 54°F | Mostly Sunny | 0 mph | 11% |
| Wednesday Night | 34°F | Mostly Cloudy | 0 mph | 11% |
| Thursday | 55°F | Slight Chance Rain Showers | 0 to 5 mph E | 16% |
| Thursday Night | 36°F | Chance Rain Showers | 0 mph | 33% |
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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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
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 Sep 18, 2026.