Mill Bay, AK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mill Bay, a community in Kodiak Island Borough County, Alaska.
Tonight
46°F
Chance Rain Showers
A chance of rain showers. Mostly cloudy, with a low around 46. Southeast wind 0 to 5 mph. Chance of precipitation is 40%.
7-day forecast for Mill Bay
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 46°F | Chance Rain Showers | 0 to 5 mph SE | 42% |
| Saturday | 53°F | Rain | 5 to 20 mph E | 99% |
| Saturday Night | 46°F | Rain | 20 to 30 mph N | 99% |
| Sunday | 53°F | Light Rain Likely then Chance Rain Showers | 5 to 20 mph W | 72% |
| Sunday Night | 41°F | Chance Rain Showers | 5 mph W | 44% |
| Monday | 48°F | Rain Showers Likely | 5 to 10 mph W | 66% |
| Monday Night | 41°F | Rain Showers Likely | 10 mph NW | 64% |
| Tuesday | 50°F | Chance Rain Showers | 10 to 15 mph NW | 43% |
| Tuesday Night | 41°F | Slight Chance Rain Showers | 10 to 15 mph NW | 18% |
| Wednesday | 52°F | Mostly Sunny | 5 to 10 mph W | 10% |
| Wednesday Night | 44°F | Chance Rain Showers | 5 mph S | 30% |
| Thursday | 53°F | Chance Rain Showers | 5 to 15 mph SE | 49% |
| Thursday Night | 46°F | Chance Rain Showers | 10 to 15 mph S | 49% |
| Friday | 54°F | Chance Rain Showers | 10 mph S | 48% |
Forecast source: National Weather Service (api.weather.gov) for Mill Bay (57.816, -152.368). Updated through the day.
Growing snapshot for Mill Bay
Last spring frost
May 9
First fall frost
Oct 4
Growing season
148 days
More local growing data for Mill Bay: nearby ZIP 99644 weather · frost dates · planting calendar · Alaska frost dates
Nearby towns & communities
Akhiok
Aleneva
Chiniak
Karluk
Kodiak
Kodiak Station
Larsen Bay
Old Harbor
Ouzinkie
Port Lions
Womens Bay
Climate data from the nearest NOAA station, Ouzinkie, Ak (4.5 mi from Mill Bay). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.