Napa River 7 Day Fishing Forecast Outlook
Thinking of heading out to Napa River At Napa 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 Napa River.
Sat 19th September, 2026 Weather Conditions For Napa River
Temperature
During the day the maximum temperature will be 91°F with a min temperature of 55°F around Napa River . The average temperature will be 70°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 Napa River 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 Napa River on Sat 19th September will be from a south westerly direction which means fishing is optimal.
Wind Speed
With the wind forecasted at 3mph hardly a puff out there makes for a calm mirror like surface. With the wind so light less ripples in the water makes it more difficult to mask the line and lure on Napa River
Winds may gust up to 6mph
Sun 20th September, 2026 Weather Conditions For Napa River
Temperature
During the day the maximum temperature will be 83°F with a min temperature of 55°F around Napa River . The average temperature will be 66°F during the day.
Cloud Cover & Rain
Pack your bags, rod and head out the door right now as you've got 100% cloud cover over Napa River. You chances of bagging a few has increased. With that level of cloud coverage in the sky there is a 10% 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 Napa River on Sun 20th September will be from a south westerly direction which means fishing is optimal.
Wind Speed
With the wind forecasted at 3mph hardly a puff out there makes for a calm mirror like surface. With the wind so light less ripples in the water makes it more difficult to mask the line and lure on Napa River
Winds may gust up to 10mph
Mon 21st September, 2026 Weather Conditions For Napa River
Temperature
During the day the maximum temperature will be 87°F with a min temperature of 53°F around Napa River . The average temperature will be 66°F during the day.
Cloud Cover & Rain
You'll need a sun hat today if you head out to Napa River as you'll be in the sun more often than not as coverage is only at 5%. With that level of cloud coverage in the sky there is a 1% 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 Napa River on Mon 21st September will be from a south westerly direction which means fishing is optimal.
Wind Speed
With the wind forecasted at 4mph hardly a puff out there makes for a calm mirror like surface. With the wind so light less ripples in the water makes it more difficult to mask the line and lure on Napa River
Winds may gust up to 11mph
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