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.
Overnight
40°F
Chance Light Rain
A chance of rain. Mostly cloudy, with a low around 40. Northeast wind around 5 mph. Chance of precipitation is 40%.
7-day forecast for Iliamna
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 40°F | Chance Light Rain | 5 mph NE | 42% |
| Wednesday | 42°F | Rain Showers Likely | 5 to 15 mph E | 68% |
| Wednesday Night | 32°F | Chance Rain Showers | 5 to 15 mph E | 47% |
| Thursday | 41°F | Chance Rain Showers then Mostly Cloudy | 0 to 5 mph NE | 28% |
| Thursday Night | 28°F | Mostly Cloudy | 5 mph NW | 8% |
| Friday | 36°F | Mostly Cloudy | 10 mph NW | 8% |
| Friday Night | 25°F | Mostly Cloudy | 5 to 10 mph NW | 13% |
| Saturday | 33°F | Mostly Cloudy | 0 to 5 mph NW | 13% |
| Saturday Night | 22°F | Mostly Cloudy | 0 to 5 mph NW | 14% |
| Sunday | 32°F | Chance Light Snow | 0 to 5 mph NW | 29% |
| Sunday Night | 24°F | Chance Light Snow | 0 to 5 mph N | 29% |
| Monday | 36°F | Chance Light Snow | 5 mph N | 25% |
| Monday Night | 24°F | Mostly Cloudy then Slight Chance Light Snow | 5 mph NW | 21% |
| Tuesday | 33°F | Chance Light Snow | 5 mph W | 42% |
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 Nov 4, 2026.