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
48°F
Light Rain
Rain. Cloudy, with a low around 48. Southeast wind around 10 mph. Chance of precipitation is 80%.
7-day forecast for Iliamna
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 48°F | Light Rain | 10 mph SE | 79% |
| Tuesday | 59°F | Light Rain | 5 to 10 mph SE | 79% |
| Tuesday Night | 47°F | Chance Light Rain | 0 to 5 mph SE | 53% |
| Wednesday | 62°F | Chance Light Rain | 0 to 10 mph SE | 42% |
| Wednesday Night | 47°F | Chance Light Rain | 10 mph SE | 40% |
| Thursday | 62°F | Chance Light Rain | 5 to 10 mph SE | 34% |
| Thursday Night | 47°F | Chance Light Rain then Chance Rain Showers | 0 to 10 mph S | 51% |
| Friday | 66°F | Chance Rain Showers then Cloudy | 0 to 5 mph SW | 25% |
| Friday Night | 49°F | Mostly Cloudy | 0 to 5 mph SW | 10% |
| Saturday | 70°F | Mostly Cloudy | 0 to 5 mph SW | 10% |
| Saturday Night | 50°F | Mostly Cloudy | 0 to 5 mph SW | 8% |
| Sunday | 71°F | Mostly Cloudy | 0 to 5 mph SW | 9% |
| Sunday Night | 49°F | Mostly Cloudy then Slight Chance Rain Showers | 0 to 5 mph S | 19% |
| Monday | 70°F | Slight Chance Rain Showers | 0 to 10 mph S | 20% |
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 Aug 4, 2026.