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.
Overnight
52°F
Light Rain
Rain. Cloudy, with a low around 52. East wind around 5 mph. Chance of precipitation is 80%.
7-day forecast for Big Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 52°F | Light Rain | 5 mph E | 79% |
| Tuesday | 62°F | Light Rain Likely | 0 to 5 mph E | 69% |
| Tuesday Night | 52°F | Light Rain Likely | 0 mph | 55% |
| Wednesday | 65°F | Chance Light Rain | 0 to 5 mph N | 43% |
| Wednesday Night | 50°F | Chance Light Rain | 0 to 5 mph E | 40% |
| Thursday | 67°F | Chance Light Rain | 0 to 5 mph SW | 40% |
| Thursday Night | 50°F | Chance Light Rain | 0 to 5 mph SW | 25% |
| Friday | 68°F | Chance Light Rain then Slight Chance Rain Showers | 0 to 5 mph S | 25% |
| Friday Night | 49°F | Mostly Cloudy | 0 to 5 mph S | 12% |
| Saturday | 72°F | Mostly Cloudy | 0 to 5 mph SW | 12% |
| Saturday Night | 50°F | Mostly Cloudy | 0 to 5 mph S | 6% |
| Sunday | 73°F | Mostly Cloudy | 0 to 5 mph S | 7% |
| Sunday Night | 50°F | Mostly Cloudy | 0 to 5 mph S | 14% |
| Monday | 73°F | Partly Sunny then Slight Chance Rain Showers | 0 to 5 mph S | 15% |
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
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
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 Aug 4, 2026.