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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: 9:02 pm AKDT Aug 23, 2026
 
Overnight

Overnight: Mostly cloudy, with a low around 45. Calm wind.
Mostly Cloudy

 Monday

Monday: Rain likely, mainly after 1pm. Cloudy, with a high near 57. Calm wind. Chance of precipitation is 70%.
Rain Likely

 Monday
Night
Monday Night: Rain. Low around 48. Light southeast wind becoming south 5 to 10 mph in the evening. Chance of precipitation is 90%.
Rain

 Tuesday

Tuesday: Rain. High near 60. Southwest wind around 10 mph. Chance of precipitation is 90%.
Rain

 Tuesday
Night
Tuesday Night: A chance of rain before 10pm. Mostly cloudy, with a low around 44. North wind 5 to 10 mph. Chance of precipitation is 40%.
Chance Rain
then Mostly
Cloudy
 Wednesday

Wednesday: Mostly sunny, with a high near 62. North wind around 5 mph.
Mostly Sunny

 Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 41.
Partly Cloudy

 Thursday

Thursday: A chance of showers between 10am and 4pm. Partly sunny, with a high near 60.
Chance
Showers
 Thursday
Night
Thursday Night: A chance of showers after 10pm. Mostly cloudy, with a low around 45.
Chance
Showers
Lo 45 °F Hi 57 °F Lo 48 °F Hi 60 °F Lo 44 °F Hi 62 °F Lo 41 °F Hi 60 °F Lo 45 °F

 

Overnight
 
 Mostly cloudy, with a low around 45. Calm wind.
Monday
 
 Rain likely, mainly after 1pm. Cloudy, with a high near 57. Calm wind. Chance of precipitation is 70%.
Monday Night
 
 Rain. Low around 48. Light southeast wind becoming south 5 to 10 mph in the evening. Chance of precipitation is 90%.
Tuesday
 
 Rain. High near 60. Southwest wind around 10 mph. Chance of precipitation is 90%.
Tuesday Night
 
 A chance of rain before 10pm. Mostly cloudy, with a low around 44. North wind 5 to 10 mph. Chance of precipitation is 40%.
Wednesday
 
 Mostly sunny, with a high near 62. North wind around 5 mph.
Wednesday Night
 
 Partly cloudy, with a low around 41.
Thursday
 
 A chance of showers between 10am and 4pm. Partly sunny, with a high near 60.
Thursday Night
 
 A chance of showers after 10pm. Mostly cloudy, with a low around 45.
Friday
 
 A chance of showers. Cloudy, with a high near 57.
Friday Night
 
 A chance of showers. Cloudy, with a low around 42.
Saturday
 
 A chance of showers. Cloudy, with a high near 57.
Saturday Night
 
 A chance of showers. Mostly cloudy, with a low around 42.
Sunday
 
 A chance of showers. Partly sunny, with a high near 58.

 

Forecast from NOAA-NWS for Port Alsworth AK.

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






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