Lewiston weather
At 9:00 PM local time it was cloudy and 8°C (47°F). Mostly light, on-and-off rain; heavier around 3 AM, 4 AM, 5 AM (6.7 mm total). Best months for weather: May–Sep. Lewiston sits 226 m (742 ft) above sea level, which keeps it cooler than the coast. Below: today's sky, the hour-by-hour rain chance and the 16-day forecast for Lewiston, Idaho, United States.
Current conditions
- Clouds
- 100%
- Chance of rain
- 3%
- Rain
- 0.0 mm/h
Hourly Forecast
Mostly light, on-and-off rain; heavier around 3 AM, 4 AM, 5 AM (6.7 mm total)
Daily Forecast
Best Time to Visit
Peak season May–SepOff season Nov–Mar
About Lewiston weather
Is it raining in Lewiston right now?
No. It’s cloudy and 8° right now. Mostly light, on-and-off rain; heavier around 3 AM, 4 AM, 5 AM (6.7 mm total).
What’s the weather like in Lewiston this week?
Over the next 7 days, expect highs of 12–16° and lows of 3–9°. Rain is likely on 1 of 7 days (Sunday). The driest day looks like Monday.
Has it been raining in Lewiston lately?
Barely. The past 7 days were mostly dry, with 1.0 mm of rain in total.
What should I pack for Lewiston?
For the coming week, bring an umbrella or rain jacket and a warm winter coat.
Lewiston weather by month
When is the best time to visit Lewiston?
Based on weather alone, the best time to visit Lewiston is May–Sep, according to NASA's 2001–2025 climate averages. Nov–Mar tends to be the least pleasant. Average highs run from 2°C (36°F) in December to 30°C (86°F) in July.
What is the rainiest month in Lewiston?
December is the wettest month, with about 86 mm (3.4 in) of rain on average. July is the driest, with about 12 mm (0.5 in).
What is the hottest month in Lewiston?
July is the warmest, with average highs of 30°C (86°F) and lows of 15°C (59°F). December is the coolest, with highs of 2°C (36°F) and lows of -5°C (22°F).
Does Lewiston have a rainy season?
Not a strong one. No month averages more than 150 mm of rain; the wettest is December at about 86 mm (3.4 in).
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis), forecast and current conditions from Open-Meteo. Page updated . How we rate months