Port Graham, AK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Port Graham, a community in Kenai Peninsula Borough County, Alaska.
Overnight
39°F
Light Rain
Rain. Cloudy, with a low around 39. Northeast wind 20 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 90%.
7-day forecast for Port Graham
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 39°F | Light Rain | 20 to 25 mph NE | 93% |
| Wednesday | 46°F | Widespread Rain Showers | 20 to 30 mph SE | 96% |
| Wednesday Night | 36°F | Scattered Rain Showers | 15 mph E | 36% |
| Thursday | 44°F | Chance Rain Showers | 5 to 10 mph NE | 36% |
| Thursday Night | 36°F | Mostly Cloudy | 10 mph NW | 10% |
| Friday | 40°F | Partly Sunny | 10 mph NW | 6% |
| Friday Night | 34°F | Mostly Cloudy then Chance Light Snow | 5 to 10 mph NW | 26% |
| Saturday | 40°F | Chance Light Snow | 5 mph N | 42% |
| Saturday Night | 32°F | Chance Light Snow | 5 mph N | 37% |
| Sunday | 39°F | Slight Chance Light Snow | 5 mph N | 35% |
| Sunday Night | 32°F | Chance Rain And Snow | 5 mph NE | 45% |
| Monday | 40°F | Chance Rain And Snow | 5 to 10 mph NE | 54% |
| Monday Night | 32°F | Chance Rain And Snow | 10 mph N | 50% |
| Tuesday | 41°F | Chance Rain And Snow | 10 mph N | 51% |
Forecast source: National Weather Service (api.weather.gov) for Port Graham (59.340, -151.846). Updated through the day.
Growing snapshot for Port Graham
Last spring frost
May 10
First fall frost
Oct 1
Growing season
145 days
More local growing data for Port Graham: nearby ZIP 99663 weather · frost dates · planting calendar · Alaska frost dates
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Seldovia
Climate data from the nearest NOAA station, Seldovia Ap, Ak (4 mi from Port Graham). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.