Iliamna, AK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Iliamna, a community in Lake And Peninsula Borough County, Alaska.
Today
50°F
Chance Rain Showers
A chance of rain showers. Cloudy, with a high near 50. Northeast wind 5 to 10 mph. Chance of precipitation is 50%.
7-day forecast for Iliamna
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 50°F | Chance Rain Showers | 5 to 10 mph NE | 46% |
| Tonight | 45°F | Chance Rain Showers | 0 to 10 mph N | 32% |
| Sunday | 47°F | Chance Rain Showers | 0 to 5 mph NW | 32% |
| Sunday Night | 33°F | Chance Rain Showers then Chance Rain And Snow Showers | 5 to 10 mph NW | 43% |
| Monday | 44°F | Chance Rain And Snow then Chance Rain Showers | 10 to 15 mph NW | 43% |
| Monday Night | 34°F | Mostly Cloudy then Slight Chance Rain Showers | 5 to 15 mph NW | 15% |
| Tuesday | 49°F | Slight Chance Rain Showers then Partly Sunny | 5 to 10 mph NW | 15% |
| Tuesday Night | 33°F | Partly Cloudy | 5 to 10 mph NW | 0% |
| Wednesday | 49°F | Mostly Sunny | 5 mph N | 1% |
| Wednesday Night | 37°F | Partly Cloudy then Chance Rain Showers | 5 to 15 mph E | 31% |
| Thursday | 51°F | Rain Showers | 15 to 30 mph E | 75% |
| Thursday Night | 42°F | Rain Showers | 20 to 25 mph E | 75% |
| Friday | 52°F | Rain Showers Likely | 15 to 20 mph SE | 66% |
| Friday Night | 42°F | Rain Showers Likely | 10 to 15 mph SE | 68% |
Forecast source: National Weather Service (api.weather.gov) for Iliamna (59.778, -154.884). Updated through the day.
Growing snapshot for Iliamna
Last spring frost
May 10
First fall frost
Oct 1
Growing season
144 days
More local growing data for Iliamna: nearby ZIP 99606 weather · frost dates · planting calendar · Alaska frost dates
Nearby towns & communities
Chignik
Chignik Lagoon
Chignik Lake
Egegik
Igiugig
Ivanof Bay
Kokhanok
Levelock
Newhalen
Nondalton
Pedro Bay
Perryville
Pilot Point
Pope-Vannoy Landing
Port Alsworth
Port Heiden
Ugashik
Climate data from the nearest NOAA station, Iliamna Ap, Ak (0.9 mi from Iliamna). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.