Lewiston weather in July 2026

Q: How hot is it in Lewiston in July?

Daytime temperatures usually reach 32°C in Lewiston in July with moderate heat and humidity, falling to 14°C at night.

Q: How sunny is it in Lewiston in July?

There are normally 13 hours of bright sunshine each day in Lewiston in July - that's 86% of daylight hours.

Q: Does it ever rain in Lewiston in July?

There are usually 3 days with some rain in Lewiston in July and the average monthly rainfall is 8mm.

Expect daytime maximum temperatures of 88°F in Lewiston, Idaho in July based on long-term weather averages. There are 14 hours of sunshine per day on average.

88
88°F max day temperature
14
14 hours of sunshine per day
5
5 days with some rainfall
55
55°F min night temperature
15
15 hours of daylight per day
M
Moderate heat & humidity
0.7
0.7 inches of monthly rainfall
8
8 (Very High) UV index

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The July weather guide for Idaho (Lewiston) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C) | Imperial (°F)

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How hot is it in Lewiston in July?

Daytime temperatures usually reach 90°F in Lewiston in July with moderate heat and humidity, falling to 57°F at night.

How sunny is it in Lewiston in July?

There are normally 13 hours of bright sunshine each day in Lewiston in July - that's 86% of daylight hours.

Does it ever rain in Lewiston in July?

There are usually 3 days with some rain in Lewiston in July and the average monthly rainfall is 0.3 inches.

Lewiston July sunrise & sunset times

Browse the sunrise and sunset times for Lewiston in July 2026. Select a month to view Lewiston sunrise and sunset times for the next 12 months.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Date	Sunrise times	Sunset times
Wednesday, 1st July 2026	04:00	19:44
Thursday, 16th July 2026	04:12	19:36
Friday, 31st July 2026	04:28	19:20

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Idaho - quick facts
Flight time^✝	13 hours
Time difference	UK -7 to -8 hours
Language(s)	English
Currency	US Dollar
Electricity	A + B plug (120V)
Driving side	Right
Visa^✝	Yes
Why visit?	Nature
Tourist info	Idaho Department of Commerce - Tourism Development