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City of Lewiston, IdahoLewiston, ID 14 Day Weather - 83501 WeatherWorld.com
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Lewiston, ID Weather Forecast
Lewiston, ID Weather Forecast Dated: 1210 AM Fri Sep 18 2026
Expect a mild stretch with a mix of sun and clouds and mostly dry weather over the coming period. comfortable humidity and no major pressure swings will dominate.
Friday, September 18, 2026
Mid-Morning
57°F 14°C
Partly Cloudy
Mid-Afternoon
73°F 23°C
Scattered Showers
Early-Evening
70°F 21°C
Sunny
Pleasant near 73°F 23°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure.
Saturday, September 19, 2026
Mid-Morning
63°F 17°C
Partly Cloudy
Mid-Afternoon
75°F 24°C
Sunny
Early-Evening
72°F 22°C
Sunny
Comfortable with temperatures reaching 75°F 24°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure.
Sunday, September 20, 2026
Mid-Morning
60°F 16°C
Sunny
Mid-Afternoon
77°F 25°C
Sunny
Early-Evening
75°F 24°C
Sunny
Enjoyable around 77°F 25°C, sunny throughout the day, with lower humidity and barometric pressure falling.
Monday, September 21, 2026
Mid-Morning
62°F 17°C
Sunny
Mid-Afternoon
80°F 26°C
Sunny
Early-Evening
72°F 23°C
Partly Cloudy
Warm temperatures up to 80°F 26°C, sunny throughout the day, with lower humidity and steady pressure. Winds turning from the ESE to the NNW at 6 mph 9 km/h.
Tuesday, September 22, 2026
Mid-Morning
57°F 14°C
Overcast
Mid-Afternoon
69°F 21°C
Sunny
Early-Evening
66°F 19°C
Sunny
Mild with a high of 69°F 21°C, overcast in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds switching from the ENE to the SW at 9 mph 15 km/h.
Wednesday, September 23, 2026
Mid-Morning
55°F 13°C
Partly Cloudy
Mid-Afternoon
74°F 24°C
Sunny
Early-Evening
73°F 23°C
Cloudy
Pleasant near 74°F 24°C, sunny in the morning, cloudy in the afternoon, and partly cloudy this evening, with lower humidity and barometric pressure falling.
Thursday, September 24, 2026
Mid-Morning
67°F 19°C
Overcast
Mid-Afternoon
84°F 29°C
Cloudy
Early-Evening
79°F 27°C
Sunny
Balmy with temperatures reaching 84°F 29°C, overcast through the afternoon, turning partly cloudy this evening, with lower humidity and barometric pressure falling.
Friday, September 25, 2026
Mid-Morning
68°F 20°C
Overcast
Mid-Afternoon
76°F 25°C
Cloudy
Early-Evening
61°F 16°C
Light Showers
Enjoyable around 76°F 25°C, mainly dry until evening showers arrive, with increasing humidity and steady pressure. Winds moving from the ESE to the WNW at 12 mph 19 km/h.
Saturday, September 26, 2026
Mid-Morning
50°F 10°C
Scattered Showers
Mid-Afternoon
58°F 14°C
Overcast
Early-Evening
58°F 15°C
Sunny
Refreshing around 58°F 14°C, locally heavy downpours at times, with lower humidity and steady pressure. Winds swinging from the SSW to the SW at 5 mph 7 km/h.
Sunday, September 27, 2026
Mid-Morning
50°F 10°C
Scattered Showers
Mid-Afternoon
55°F 13°C
Overcast
Early-Evening
55°F 13°C
Overcast
Cool and brisk at 55°F 13°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure. Winds shifting from the ESE to the W at 8 mph 12 km/h.
Monday, September 28, 2026
Mid-Morning
50°F 10°C
Overcast
Mid-Afternoon
57°F 14°C
Overcast
Early-Evening
54°F 12°C
Sunny
Chilly near 57°F 14°C, overcast through the afternoon, turning cloudy this evening, with steady humidity and steady pressure.
Tuesday, September 29, 2026
Mid-Morning
51°F 11°C
Sunny
Mid-Afternoon
64°F 18°C
Partly Cloudy
Early-Evening
61°F 16°C
Sunny
Cool with a high near 64°F 18°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds turning from the ENE to the NE at 10 mph 16 km/h.
Wednesday, September 30, 2026
Mid-Morning
47°F 8°C
Sunny
Mid-Afternoon
62°F 17°C
Sunny
Early-Evening
62°F 16°C
Sunny
Refreshing around 62°F 17°C, sunny throughout the day, with lower humidity and barometric pressure falling.
Thursday, October 1, 2026
Mid-Morning
53°F 12°C
Sunny
Mid-Afternoon
68°F 20°C
Sunny
Early-Evening
66°F 19°C
Sunny
Mild temperatures up to 68°F 20°C, sunny throughout the day, with lower humidity and barometric pressure falling.
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