Tyonek, AK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Tyonek, a community in Kenai Peninsula Borough County, Alaska.
This Afternoon
40°F
Cloudy
Cloudy, with a high near 40. North wind around 15 mph, with gusts as high as 25 mph.
7-day forecast for Tyonek
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 40°F | Cloudy | 15 mph N | 5% |
| Tonight | 34°F | Cloudy then Light Rain Likely | 15 mph N | 64% |
| Wednesday | 40°F | Light Rain Likely then Isolated Rain Showers | 5 to 15 mph N | 72% |
| Wednesday Night | 31°F | Slight Chance Light Rain then Mostly Cloudy | 10 mph N | 15% |
| Thursday | 40°F | Partly Sunny | 10 mph N | 11% |
| Thursday Night | 32°F | Partly Cloudy | 0 to 10 mph N | 0% |
| Friday | 38°F | Partly Sunny then Slight Chance Rain And Snow | 0 to 5 mph N | 17% |
| Friday Night | 29°F | Slight Chance Rain And Snow | 5 mph N | 19% |
| Saturday | 36°F | Slight Chance Rain And Snow | 5 mph N | 19% |
| Saturday Night | 28°F | Mostly Cloudy | 5 mph N | 14% |
| Sunday | 34°F | Slight Chance Light Snow | 5 mph N | 16% |
| Sunday Night | 27°F | Chance Light Snow | 5 mph N | 28% |
| Monday | 35°F | Chance Light Snow | 5 mph N | 28% |
| Monday Night | 26°F | Cloudy then Slight Chance Light Snow | 5 mph N | 15% |
Forecast source: National Weather Service (api.weather.gov) for Tyonek (61.099, -151.339). Updated through the day.
Growing snapshot for Tyonek
Last spring frost
May 18
First fall frost
Sep 22
Growing season
125 days
More local growing data for Tyonek: nearby ZIP 99682 weather · frost dates · planting calendar · Alaska frost dates
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Climate data from the nearest NOAA station, Kenai 9N, Ak (36.3 mi from Tyonek). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.