Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
Lewiston Weather in September
With daytime temperatures of 28°C (82°F) and nighttime lows of 11°C (52°F), September in Lewiston brings high temperatures during the day. The excellent weather makes it an appealing time to visit.
Rainfall in Lewiston in September
Rain is expected on roughly 5 days, totalling around 14 mm (0.6 in) for the month. The odd shower may pass through, but it usually doesn't amount to much. A largely dry month overall.
Temperature in Lewiston in September
Lewiston in September is worth a visit. The temperature is excellent, with 28°C (82°F) during the day and 11°C (52°F) at night. This month falls in the summer season. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. At 11°C (52°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.So this is a great month to visit if you prefer dry days with pleasant temperatures.
Lewiston Temperature in September
Min Temperature
11°C (52°F)
Max Temperature
28°C (82°F)
Chance of Rain
17%
Precipitation
14 mm (0.6 in)
Rainy days
5 days
Lewiston Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Lewiston - and find the best time to visit.
Best Places in the United States of America in September
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Lewiston in September
Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Almost no rain is expected, so no need to bring rain gear.
What To Do in Lewiston in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling8/10 -
Walking8/10 -
Camping10/10 -
Outdoor sports8/10
Lewiston 3-Day Forecast
More climate data for Lewiston
See the full Lewiston climate overview or explore weather in the United States of America.
Popular in September
Where to go in September - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Yosemite National Park is definitely worth a visit
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