Our Lewiston long range weather forecast is based on historical data analysis rather than real-time forecasting models. While this provides a general outlook, weather conditions can change. We recommend checking the forecast closer to your planned date for the most current information.

Rain Forecast for the Next 14 Days in Lewiston

A total of 13.8 mm is expected over 5 rainy days. The wettest day is Sunday 15, with 5.8 mm. Click a day for details.

Tue. 10

1.4

Lewiston Wind Speed Forecast Chart

The windiest day is Friday 13, with winds up to 13.7 km/h from the E. The calmest day is Tuesday 17. The average daily maximum is 7.5 km/h.

CalmLight breezeGentle breezeModerate breezeFresh breeze

Frequently asked questions about the weather in Lewiston

How warm is it in Lewiston over the next 14 days?

Over the next two weeks, temperatures in Lewiston are expected to range from around -2 °C on the coldest nights up to about 18 °C on the warmest days. Use this range to plan what to pack and wear.

Will it rain in Lewiston in the next two weeks?

Yes - rain is expected on about 5 of the next 14 days in Lewiston, with roughly 13.8 mm of rainfall in total. It is worth keeping an umbrella or raincoat handy.

How windy is it in Lewiston?

Maximum wind speeds in Lewiston are forecast to reach about 13.7 km/h at their peak over the next 14 days.

When is the best time to visit Lewiston?

For a month-by-month look at temperatures and rainfall, see our best time to visit Lewiston guide.

How accurate is the 14-day forecast for Lewiston?

Our Lewiston forecast uses leading meteorological models and is most reliable over the next few days. Long-range days beyond a week show general trends and can change, so check back closer to the date for updates.

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Where is Lewiston?

Get accurate weather forecasts for Lewiston, located at latitude 46.417 and longitude -117.018. Stay updated with localized weather information tailored for Lewiston.

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Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
1 13°	2 12°	3 10°	4 11°	5 11°	6 11°	7 12°
8 12°	9 12°	10 16°	11 18°	12 18°	13 17°	14 14°
15 9°	16 6°	17 5°	18 5°	19 5°	20 3°	21 4°
22 5°	23 9°	24 6°	25 7°	26 7°	27 8°	28 6°
29 2°	30 2°