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 May
May in Lewiston brings pleasant temperatures around 19°C (66°F) during the day, dropping to 7°C (45°F) at night, with quite a bit of rainfall expected, averaging around 93 mm (3.7 in) for the month.
Rainfall in Lewiston in May
Past climate data indicates that roughly 14 days will see rain, totalling around 93 mm (3.7 in) for the month. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.
Temperature in Lewiston in May
If you're visiting Lewiston in May, expect highs of 19°C (66°F) and overnight lows around 7°C (45°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights drop to 7°C (45°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.
Sunshine in Lewiston in May
Enjoy a sunny month with about 244 hours of sunshine, the clear skies make Lewiston even more beautiful.If you favor pleasant temperatures and minimal rainfall, May is one of the best months to visit Lewiston.
Lewiston Temperature in May
Min Temperature
7°C (45°F)
Max Temperature
19°C (66°F)
Chance of Rain
47%
Precipitation
93 mm (3.7 in)
Rainy days
14 days
Humidity
71% *
Sunshine
244 hours *
Percentage Sunshine
53% *
* Data from: Portland, the United States of America (48 KM, 30 Miles).
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 May
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 May →
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 May
Comfortable temperatures call for an easy wardrobe in May. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
What To Do in Lewiston in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling9/10 -
Walking9/10 -
Camping4/10 -
Outdoor sports9/10
Lewiston 3-Day Forecast
More climate data for Lewiston
Temperature Rainfall Sunshine Humidity
See the full Lewiston climate overview or explore weather in the United States of America.
Popular in May
Where to go in May - average daytime high across popular destinations.
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Yosemite National Park is definitely worth a visit
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