Big Lake, AK Weather & Growing Conditions
Tonight
42°F
Light Rain
A chance of rain before 10pm, then rain showers likely between 10pm and 1am, then rain. Cloudy, with a low around 42. West wind around 5 mph. Chance of precipitation is 90%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| 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 then Slight Chance Rain Showers | 0 to 10 mph NW | 21% |
| Sunday Night | 37°F | Rain Showers | 0 to 5 mph N | 77% |
| Monday | 53°F | Rain Showers | 0 to 5 mph E | 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% |
| Friday | 55°F | Chance Rain Showers | 0 to 5 mph N | 33% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Big Lake, AK
Last spring frost
May 29
First fall frost
Sep 7
Growing season
100 days
Explore more for Big Lake, AK: full frost dates · planting calendar · Alaska frost dates
Climate data from the nearest NOAA station, Whites Crossing, Ak (13.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.