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Nikiski, AK Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Nikiski, a community in Kenai Peninsula Borough County, Alaska.

Today
42°F
Cloudy
Cloudy, with a high near 42. Northeast wind around 25 mph.

7-day forecast for Nikiski

WhenTempForecastWindPrecip
Today 42°F Cloudy 25 mph NE 14%
Tonight 35°F Mostly Cloudy then Slight Chance Light Rain 20 to 25 mph NE 41%
Wednesday 43°F Chance Rain Showers 10 to 20 mph NE 52%
Wednesday Night 32°F Chance Rain Showers then Chance Rain And Snow Showers 10 to 15 mph NE 30%
Thursday 40°F Slight Chance Rain And Snow Showers then Slight Chance Rain And Snow 10 mph NE 16%
Thursday Night 29°F Mostly Cloudy 5 to 10 mph NE 8%
Friday 38°F Mostly Cloudy 5 mph NE 9%
Friday Night 29°F Mostly Cloudy 5 mph NE 13%
Saturday 37°F Mostly Cloudy 5 mph NE 14%
Saturday Night 27°F Mostly Cloudy 5 mph NE 11%
Sunday 36°F Mostly Cloudy 5 mph NE 11%
Sunday Night 26°F Mostly Cloudy then Slight Chance Light Rain 5 mph NE 10%
Monday 35°F Slight Chance Light Rain 5 to 10 mph NE 16%
Monday Night 26°F Mostly Cloudy 5 to 10 mph NE 12%

Forecast source: National Weather Service (api.weather.gov) for Nikiski (60.725, -151.225). Updated through the day.

Growing snapshot for Nikiski

Last spring frost
Jun 11
First fall frost
Sep 1
Growing season
75 days

More local growing data for Nikiski: nearby ZIP 99669 weather · frost dates · planting calendar · Alaska frost dates

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Climate data from the nearest NOAA station, Soldotna 5Ssw, Ak (5.7 mi from Nikiski). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.