Castle Lake 7 Day Fishing Forecast

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  • Updated 7th April 2026

Castle Lake 7 Day Fishing Forecast Outlook

Thinking of heading out to Castle Lake Near Mount St Helens over the next few days. If so get you'll find all your weather information you'll need over the next seven days. Please ensure to adhere to the fishing regulations for the state. Remember, regulations are there to protect fish species and enable fishing for generations to come. Determine which day is best for you the bag your best catch on Castle Lake.

Mon 6th April, 2026 Weather Conditions For Castle Lake

Temperature

  • Updated Just Now

During the day the maximum temperature will be 72°F with a min temperature of 50°F around Castle Lake . The average temperature will be 61°F during the day.

Cloud Cover & Rain

  • Updated Just Now

Bring a hat and sun cream, yip with cloud coverage at 1% you'll need to find an artifical shade to cast a shadow if headng out to Castle Lake to fish today. With that level of cloud coverage in the sky there is a 0% probability of rain.


Wind Direction

  • Updated Just Now

I'm sure you've heard of the old sying: “Wind from the West, fish bite the best. Wind from the East, fish bite the least. Wind from the North, do not go forth. Wind from the South blows bait in their mouth.”. It's more of a wife tail but always fun to recollect.

Its less so about the direction but the cause for the direction. We’ll cover this more in a blog post soon but for Castle Lake on Mon 6th April will be from a north westerly direction which means fishing is optimal.


Wind Speed

  • Updated Just Now

Good news, the wind speed is forecasted to be at 5mph and considered in the optimal range for fishing as the ripples caused by the wind on the water's surface will help hide the line an lure on Castle Lake
Winds may gust up to 5mph


Tue 7th April, 2026 Weather Conditions For Castle Lake

Temperature

  • Updated Just Now

During the day the maximum temperature will be 53°F with a min temperature of 32°F around Castle Lake . The average temperature will be 45°F during the day.

Cloud Cover & Rain

  • Updated Just Now

Cloud cover not as optimal today at 51% but still enough cover there to grab a catch on Castle Lake With that level of cloud coverage in the sky there is a 0% probability of rain.


Wind Direction

  • Updated Just Now

I'm sure you've heard of the old sying: “Wind from the West, fish bite the best. Wind from the East, fish bite the least. Wind from the North, do not go forth. Wind from the South blows bait in their mouth.”. It's more of a wife tail but always fun to recollect.

Its less so about the direction but the cause for the direction. We’ll cover this more in a blog post soon but for Castle Lake on Tue 7th April will be from a north westerly direction which means fishing is optimal.


Wind Speed

  • Updated Just Now

Good news, the wind speed is forecasted to be at 7mph and considered in the optimal range for fishing as the ripples caused by the wind on the water's surface will help hide the line an lure on Castle Lake
Winds may gust up to 8mph


Wed 8th April, 2026 Weather Conditions For Castle Lake

Temperature

  • Updated Just Now

During the day the maximum temperature will be 61°F with a min temperature of 37°F around Castle Lake . The average temperature will be 49°F during the day.

Cloud Cover & Rain

  • Updated Just Now

Bring a hat and sun cream, yip with cloud coverage at 1% you'll need to find an artifical shade to cast a shadow if headng out to Castle Lake to fish today. With that level of cloud coverage in the sky there is a 0% probability of rain.


Wind Direction

  • Updated Just Now

I'm sure you've heard of the old sying: “Wind from the West, fish bite the best. Wind from the East, fish bite the least. Wind from the North, do not go forth. Wind from the South blows bait in their mouth.”. It's more of a wife tail but always fun to recollect.

Its less so about the direction but the cause for the direction. We’ll cover this more in a blog post soon but for Castle Lake on Wed 8th April will be from a north westerly direction which means fishing is optimal.


Wind Speed

  • Updated Just Now

Good news, the wind speed is forecasted to be at 5mph and considered in the optimal range for fishing as the ripples caused by the wind on the water's surface will help hide the line an lure on Castle Lake
Winds may gust up to 5mph


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