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.
This Afternoon
55°F
Chance Light Rain
A chance of rain before 4pm, then a chance of rain showers. Cloudy, with a high near 55. Northeast wind 0 to 5 mph. Chance of precipitation is 40%.
7-day forecast for Port Graham
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 55°F | Chance Light Rain | 0 to 5 mph NE | 42% |
| Tonight | 42°F | Chance Rain Showers | 0 to 10 mph S | 34% |
| Saturday | 53°F | Rain Showers | 5 to 15 mph E | 82% |
| Saturday Night | 45°F | Light Rain | 5 to 15 mph NE | 100% |
| Sunday | 53°F | Light Rain then Chance Rain Showers | 10 to 15 mph N | 100% |
| Sunday Night | 42°F | Rain Showers Likely | 5 to 10 mph W | 62% |
| Monday | 50°F | Rain Showers | 5 mph SW | 77% |
| Monday Night | 41°F | Rain Showers Likely | 5 mph W | 68% |
| Tuesday | 51°F | Slight Chance Rain Showers | 5 to 10 mph NW | 24% |
| Tuesday Night | 42°F | Partly Cloudy | 5 to 10 mph NW | 14% |
| Wednesday | 52°F | Mostly Sunny | 5 mph NW | 11% |
| Wednesday Night | 43°F | Chance Rain Showers | 5 to 10 mph SE | 26% |
| Thursday | 53°F | Chance Rain Showers | 10 mph SE | 50% |
| Thursday Night | 45°F | Rain Showers Likely | 10 mph SE | 57% |
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 Sep 19, 2026.