Willow, AK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Willow, a community in Matanuska-Susitna Borough County, Alaska.
Today
45°F
Rain Showers Likely
Rain showers likely. Mostly cloudy, with a high near 45. South wind 0 to 5 mph. Chance of precipitation is 60%.
7-day forecast for Willow
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 45°F | Rain Showers Likely | 0 to 5 mph S | 60% |
| Tonight | 39°F | Rain Showers Likely then Chance Light Rain | 0 to 5 mph NE | 60% |
| Sunday | 46°F | Chance Light Rain then Rain Showers Likely | 0 to 5 mph N | 57% |
| Sunday Night | 35°F | Rain Showers | 0 to 5 mph SW | 79% |
| Monday | 42°F | Snow Showers | 0 to 5 mph S | 79% |
| Monday Night | 31°F | Mostly Cloudy | 5 mph SE | 33% |
| Tuesday | 42°F | Partly Sunny | 5 mph N | 9% |
| Tuesday Night | 30°F | Mostly Cloudy | 0 to 5 mph N | 3% |
| Wednesday | 41°F | Partly Sunny | 0 to 5 mph NW | 1% |
| Wednesday Night | 30°F | Mostly Cloudy | 5 to 10 mph S | 5% |
| Thursday | 43°F | Mostly Cloudy | 10 mph SE | 14% |
| Thursday Night | 34°F | Chance Rain And Snow Showers | 10 to 15 mph SE | 39% |
| Friday | 44°F | Chance Rain And Snow Showers | 5 to 15 mph SE | 39% |
| Friday Night | 34°F | Chance Rain Showers | 5 to 10 mph SE | 39% |
Forecast source: National Weather Service (api.weather.gov) for Willow (61.887, -149.620). Updated through the day.
Growing snapshot for Willow
Last spring frost
May 15
First fall frost
Sep 18
Growing season
126 days
More local growing data for Willow: nearby ZIP 99688 weather · frost dates · planting calendar · Alaska frost dates
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Climate data from the nearest NOAA station, Willow West, Ak (17.1 mi from Willow). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.