Harman US

Knik River, AK Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Knik River, a community in Anchorage Municipality County, Alaska.

Overnight
42°F
Light Rain
Rain. Cloudy, with a low around 42. South wind around 30 mph. Chance of precipitation is 80%.

7-day forecast for Knik River

WhenTempForecastWindPrecip
Overnight 42°F Light Rain 30 mph S 77%
Tuesday 46°F Light Rain Likely 25 to 30 mph SE 59%
Tuesday Night 42°F Chance Light Rain 10 to 25 mph SE 47%
Wednesday 48°F Chance Light Rain 5 to 10 mph SE 26%
Wednesday Night 37°F Chance Light Rain 5 to 10 mph SE 40%
Thursday 49°F Chance Light Rain 0 to 5 mph SE 40%
Thursday Night 37°F Chance Light Rain 0 mph 31%
Friday 48°F Slight Chance Light Rain then Slight Chance Rain Showers 0 mph 18%
Friday Night 38°F Slight Chance Rain Showers 0 mph 17%
Saturday 50°F Slight Chance Rain Showers then Mostly Cloudy 0 mph 15%
Saturday Night 39°F Mostly Cloudy 0 mph 12%
Sunday 51°F Mostly Cloudy then Slight Chance Rain Showers 0 mph 18%
Sunday Night 39°F Slight Chance Rain Showers 0 mph 18%
Monday 51°F Chance Rain Showers 0 mph 26%

Forecast source: National Weather Service (api.weather.gov) for Knik River (61.462, -149.007). Updated through the day.

Growing snapshot for Knik River

Last spring frost
May 16
First fall frost
Sep 20
Growing season
125 days

More local growing data for Knik River: nearby ZIP 99567 weather · frost dates · planting calendar · Alaska frost dates

Nearby towns & communities

All Alaska locations ›

Climate data from the nearest NOAA station, Eagle Rvr Nature Ctr, Ak (9.4 mi from Knik River). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.