Great Falls Lake 7 Day Fishing Forecast Outlook
Thinking of heading out to Great Falls Lake 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 Great Falls Lake.
Fri 20th March, 2026 Weather Conditions For Great Falls Lake
Temperature
During the day the maximum temperature will be 80°F with a min temperature of 46°F around Great Falls Lake. The average temperature will be 62°F during the day.
Cloud Cover & Rain
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 Great Falls Lake to fish today. With that level of cloud coverage in the sky there is a 0% probability of rain.
Wind Direction
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 Great Falls Lake on Fri 20th March will be from a south westerly direction which means fishing is optimal.
Wind Speed
Good news, the wind speed is forecasted to be at 13mph 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 Great Falls Lake
Winds may gust up to 15mph
Sat 21st March, 2026 Weather Conditions For Great Falls Lake
Temperature
During the day the maximum temperature will be 76°F with a min temperature of 55°F around Great Falls Lake. The average temperature will be 65°F during the day.
Cloud Cover & Rain
Not complete cloud but coverage at 98% but still very good for fishing on Great Falls Lake. Get going before conditions change. With that level of cloud coverage in the sky there is a 0% probability of rain.
Wind Direction
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 Great Falls Lake on Sat 21st March will be from a south westerly direction which means fishing is optimal.
Wind Speed
Good news, the wind speed is forecasted to be at 10mph 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 Great Falls Lake
Winds may gust up to 12mph
Sun 22nd March, 2026 Weather Conditions For Great Falls Lake
Temperature
During the day the maximum temperature will be 69°F with a min temperature of 63°F around Great Falls Lake. The average temperature will be 66°F during the day.
Cloud Cover & Rain
Not complete cloud but coverage at 92% but still very good for fishing on Great Falls Lake. Get going before conditions change. With that level of cloud coverage in the sky there is a 0% probability of rain.
Wind Direction
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 Great Falls Lake on Sun 22nd March will be from a south westerly direction which means fishing is optimal.
Wind Speed
Good news, the wind speed is forecasted to be at 12mph 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 Great Falls Lake
Winds may gust up to 14mph
Great Falls Lake Extended Information & Fishing Tools .
Join our memebers araea for free and get additonal informaiton about Great Falls Lake including current water conditions, fishing activity and special wholesale offers .
Don't Keep This Site To Yourself. Share With Your Fishing Friends
Facebook