National Weather Service Forecast for: Port Alsworth AK
Issued by: National Weather Service Anchorage, AK
Updated: 7:09 am AKDT May 29, 2026
 
This
Afternoon
This Afternoon: Showers likely, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 56. West wind around 5 mph. Chance of precipitation is 60%.
Showers
Likely

 Tonight

Tonight: Showers and thunderstorms likely before 10pm, then a chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 41. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Showers
Likely then
Chance
Showers
 Saturday

Saturday: A chance of showers, mainly before 4pm. Mostly cloudy, with a high near 55. Calm wind. Chance of precipitation is 30%.
Chance
Showers

 Saturday
Night
Saturday Night: Mostly cloudy, with a low around 40. South wind around 5 mph becoming calm after midnight.
Mostly Cloudy

 Sunday

Sunday: Partly sunny, with a high near 64. Calm wind becoming south around 5 mph.
Partly Sunny

 Sunday
Night
Sunday Night: Partly cloudy, with a low around 40. South wind around 5 mph becoming calm in the evening.
Partly Cloudy

 Monday

Monday: Sunny, with a high near 66.
Sunny

 Monday
Night
Monday Night: Mostly cloudy, with a low around 47.
Mostly Cloudy

 Tuesday

Tuesday: Mostly sunny, with a high near 73.
Mostly Sunny
Hi 56 °F Lo 41 °F Hi 55 °F Lo 40 °F Hi 64 °F Lo 40 °F Hi 66 °F Lo 47 °F Hi 73 °F

 

This Afternoon
 
 Showers likely, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 56. West wind around 5 mph. Chance of precipitation is 60%.
Tonight
 
 Showers and thunderstorms likely before 10pm, then a chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 41. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Saturday
 
 A chance of showers, mainly before 4pm. Mostly cloudy, with a high near 55. Calm wind. Chance of precipitation is 30%.
Saturday Night
 
 Mostly cloudy, with a low around 40. South wind around 5 mph becoming calm after midnight.
Sunday
 
 Partly sunny, with a high near 64. Calm wind becoming south around 5 mph.
Sunday Night
 
 Partly cloudy, with a low around 40. South wind around 5 mph becoming calm in the evening.
Monday
 
 Sunny, with a high near 66.
Monday Night
 
 Mostly cloudy, with a low around 47.
Tuesday
 
 Mostly sunny, with a high near 73.
Tuesday Night
 
 Mostly clear, with a low around 50.
Wednesday
 
 Sunny, with a high near 77.
Wednesday Night
 
 Mostly clear, with a low around 53.
Thursday
 
 Sunny, with a high near 75.

 

Forecast from NOAA-NWS for Port Alsworth AK.