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Lake Clark National Park, AK Weather Forecast
Wx Discussion - Wx Hazards - Wx Aviation
NWS Forecast for Port Alsworth AK
National Weather Service Forecast for: Port Alsworth AK
Issued by: National Weather Service Anchorage, AK
Updated: 3:37 am AKDT Aug 20, 2025
 
Today

Today: A slight chance of showers after 4pm. Mostly sunny, with a high near 71. Calm wind. Chance of precipitation is 10%.
Mostly Sunny
then Slight
Chance
Showers
 Tonight

Tonight: A slight chance of showers before 7pm. Mostly cloudy, with a low around 47. Calm wind becoming southeast around 5 mph. Chance of precipitation is 10%.
Slight Chance
Showers then
Mostly Cloudy
 Thursday

Thursday: Mostly cloudy, with a high near 68. Calm wind becoming southwest around 5 mph.
Mostly Cloudy

 Thursday
Night
Thursday Night: Mostly cloudy, with a low around 46. Calm wind.
Mostly Cloudy

 Friday

Friday: Partly sunny, with a high near 72. Calm wind.
Partly Sunny

 Friday
Night
Friday Night: Mostly cloudy, with a low around 48. West wind around 5 mph becoming calm in the evening.
Mostly Cloudy

 Saturday

Saturday: Mostly cloudy, with a high near 68.
Mostly Cloudy

 Saturday
Night
Saturday Night: A chance of rain. Cloudy, with a low around 52.
Chance Rain

 Sunday

Sunday: A chance of rain. Cloudy, with a high near 68.
Chance Rain
Hi 71 °F Lo 47 °F Hi 68 °F Lo 46 °F Hi 72 °F Lo 48 °F Hi 68 °F Lo 52 °F Hi 68 °F

 

Today
 
 A slight chance of showers after 4pm. Mostly sunny, with a high near 71. Calm wind. Chance of precipitation is 10%.
Tonight
 
 A slight chance of showers before 7pm. Mostly cloudy, with a low around 47. Calm wind becoming southeast around 5 mph. Chance of precipitation is 10%.
Thursday
 
 Mostly cloudy, with a high near 68. Calm wind becoming southwest around 5 mph.
Thursday Night
 
 Mostly cloudy, with a low around 46. Calm wind.
Friday
 
 Partly sunny, with a high near 72. Calm wind.
Friday Night
 
 Mostly cloudy, with a low around 48. West wind around 5 mph becoming calm in the evening.
Saturday
 
 Mostly cloudy, with a high near 68.
Saturday Night
 
 A chance of rain. Cloudy, with a low around 52.
Sunday
 
 A chance of rain. Cloudy, with a high near 68.
Sunday Night
 
 A chance of rain. Cloudy, with a low around 51.
Monday
 
 A chance of rain. Cloudy, with a high near 67.
Monday Night
 
 A chance of rain. Cloudy, with a low around 50.
Tuesday
 
 A chance of rain. Cloudy, with a high near 67.

 

Forecast from NOAA-NWS for Port Alsworth AK.

Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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