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.
Today
73°F
Partly Sunny
Partly sunny, with a high near 73. Southeast wind 10 to 15 mph.
7-day forecast for Delta Junction
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 73°F | Partly Sunny | 10 to 15 mph SE | 9% |
| Tonight | 51°F | Partly Cloudy | 5 to 15 mph S | 3% |
| Wednesday | 76°F | Mostly Sunny | 0 to 5 mph SE | 2% |
| Wednesday Night | 53°F | Partly Cloudy | 0 to 5 mph S | 2% |
| Thursday | 76°F | Mostly Sunny | 0 to 5 mph SW | 9% |
| Thursday Night | 52°F | Mostly Cloudy | 5 mph W | 13% |
| Friday | 70°F | Mostly Cloudy | 5 mph W | 13% |
| Friday Night | 49°F | Isolated Rain Showers | 0 to 5 mph W | 19% |
| Saturday | 68°F | Isolated Rain Showers then Mostly Cloudy | 0 to 5 mph W | 19% |
| Saturday Night | 49°F | Mostly Cloudy | 0 to 5 mph W | 11% |
| Sunday | 71°F | Mostly Cloudy | 0 to 5 mph W | 10% |
| Sunday Night | 50°F | Mostly Cloudy | 0 to 5 mph W | 10% |
| Monday | 73°F | Mostly Cloudy | 0 to 5 mph NW | 9% |
| Monday Night | 51°F | Mostly Cloudy | 0 to 5 mph W | 10% |
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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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 Aug 4, 2026.