Delta Junction, AK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Delta Junction, a city in Southeast Fairbanks Census Area County, Alaska.
Tonight
39°F
Scattered Rain Showers
Scattered rain showers after 7pm. Cloudy, with a low around 39. Southeast wind 0 to 10 mph. Chance of precipitation is 30%.
7-day forecast for Delta Junction
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 39°F | Scattered Rain Showers | 0 to 10 mph SE | 30% |
| Saturday | 54°F | Scattered Rain Showers then Mostly Cloudy | 5 mph SE | 30% |
| Saturday Night | 36°F | Mostly Cloudy then Isolated Rain Showers | 0 to 5 mph SE | 20% |
| Sunday | 51°F | Scattered Rain Showers | 0 to 5 mph W | 27% |
| Sunday Night | 36°F | Scattered Rain Showers | 0 to 5 mph W | 46% |
| Monday | 46°F | Scattered Rain Showers | 0 to 5 mph W | 46% |
| Monday Night | 32°F | Scattered Rain Showers | 0 to 5 mph W | 34% |
| Tuesday | 42°F | Mostly Cloudy | 0 to 5 mph NW | 8% |
| Tuesday Night | 30°F | Mostly Cloudy | 0 to 5 mph W | 2% |
| Wednesday | 42°F | Mostly Cloudy | 0 mph | 2% |
| Wednesday Night | 27°F | Mostly Cloudy | 0 mph | 0% |
| Thursday | 48°F | Partly Sunny | 0 to 10 mph SE | 1% |
| Thursday Night | 33°F | Mostly Cloudy | 10 mph SE | 4% |
| Friday | 50°F | Partly Sunny | 10 mph SE | 4% |
Forecast source: National Weather Service (api.weather.gov) for Delta Junction (64.057, -145.700). Updated through the day.
Growing snapshot for Delta Junction
Last spring frost
May 30
First fall frost
Aug 24
Growing season
84 days
More local growing data for Delta Junction: nearby ZIP 99737 weather · frost dates · planting calendar · Alaska frost dates
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Tok
Climate data from the nearest NOAA station, Dry Creek, Ak (26.6 mi from Delta Junction). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.