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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| 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
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.