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: 445 AM AKST Thu Feb 26 2026


Today: Mostly clear. Highs 12 to 17 below. Light winds.

Tonight: Mostly clear. Lows 28 to 40 below. Light winds.

Friday: Mostly clear. Highs 9 to 18 below. Light winds.

Friday Night: Mostly clear. Lows 31 to 42 below. Light winds.

Saturday: Partly cloudy. Highs 13 to 20 below. Light winds.

Saturday Night: Mostly clear. Lows around 35 below.

Sunday And Sunday Night: Mostly clear. Highs around 15 below. Lows around 35 below.

Monday And Monday Night: Mostly clear. Highs around 10 below. Lows 30 to 35 below.

Tuesday And Tuesday Night: Mostly clear. Highs around 5 below. Lows 25 to 30 below.

Wednesday: Sunny. Highs around zero.







Zone Forecast: Upper Koyukuk Valley

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