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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

WhenTempForecastWindPrecip
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.