7-Day Zone Forecast for Upper Koyukuk Valley (Text-Only)
NWS Forecast for: Upper Koyukuk Valley
Issued by: National Weather Service Fairbanks, AK
Last Update: 345 PM AKDT Tue Sep 8 2026




Tonight: Showers in the evening, then isolated showers after midnight. Lows in the lower 40s. Southwest winds 5 to 15 mph. Gusts up to 30 mph.

Wednesday: Isolated showers in the morning, then showers in the afternoon. Highs in the upper 40s to lower 50s. West winds 5 to 15 mph with gusts to around 30 mph.

Wednesday Night: Mostly cloudy with scattered showers. Lows in the upper 30s to lower 40s. Southwest winds 5 to 15 mph.

Thursday: Showers. Highs in the lower 50s. Southwest winds to 10 mph.

Thursday Night: Showers. Lows in the lower to mid 40s. Southwest winds 10 to 20 mph increasing to south 20 to 30 mph after midnight.

Friday: Showers. Highs in the mid 50s.

Friday Night: Showers in the evening, then numerous showers after midnight. Lows around 40.

Saturday And Saturday Night: Numerous showers. Highs around 50. Lows around 40.

Sunday: Cloudy with scattered showers. Highs around 50.

Sunday Night And Monday: Mostly cloudy. Scattered showers and snow showers. Lows in the mid 30s. Highs in the mid 40s.

Monday Night And Tuesday: Mostly cloudy with scattered showers. Lows in the mid 30s. Highs in the mid 40s.







Zone Forecast: Upper Koyukuk Valley

Visit your local NWS office at: https://www.weather.gov/Fairbanks