Lewiston, ID weather and climate in 2025
Day
33 °C
Night
15 °C
Sea
0 °C
Precipitation
17 mm
in month
Rainy days
4 days
in month
Daylight
14 hours
average
Sunshine
12 hours
average
Humidity
42 %
Day
33 °C
Night
15 °C
Sea
0 °C
Precipitation
17 mm
in month
Rainy days
4 days
in month
Daylight
14 hours
average
Sunshine
12 hours
average
Humidity
42 %
Overview: Lewiston, ID
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Weather overview for Lewiston, ID
Weather overview
Lewiston, ID (United States of America) in general has a mild continental climate. The day temperatures range from 5 °C (40 °F) in December to 33 °C (92 °F) in August. The driest month is August with just 4 days of rain, on the contrary, the month when it rains the most is December with 13 days of rain. The highest night temperatures could be experienced in July with 16 °C (60 °F), the lowest in December with -2 °C (29 °F).
January weather
The number of rainy days descent's start could be observed in Lewiston, ID. The beginning of the rise of the day temperature could be noticed, its value is 5 °C (42 °F), and the night temperature starts to rise too, with its value of -1 °C (30 °F).
February weather
The descent of the number of rainy days can be observed, with its value of 11 days in Lewiston, ID, while the rainfall amount descent's start could be observed, with its value of 32 mm (1.27 in). The rise of the day temperature can be observed, the value of this measure is 9 °C (47 °F), and the night temperature rises similarly to the previous month as well, with its value being 0 °C (31 °F). The number of sun hours (without clouds) rise's start could be observed, the value of this measure is 4 hours.
March weather
The number of rainy days rise's start could be observed, the value of this measure is 12 days in Lewiston, ID, and the beginning of the rise of the rainfall amount could be noticed as well in this month. The day temperature continues to rise, the value of this measure is 14 °C (56 °F), and the rise of the night temperature can be observed as well, the value of this measure is 2 °C (36 °F). The rise of the number of sun hours (without clouds) can be observed, with its value of 6 hours.
April weather
The day temperature continues to rise, its value is 18 °C (65 °F) in Lewiston, ID, and the night temperature rises similarly to the previous month too, the value of this measure is 5 °C (41 °F). The number of rainy days starts to descent in this month. The number of sun hours (without clouds) continues to rise, its value is 7 hours. The wind speed is on its maximum in this month.
May weather
The day temperature continues to rise, its value is 23 °C (74 °F) in Lewiston, ID, and the night temperature continues to rise too. The tourist season is about to start this month. The rainfall amount reaches its maximum, with its value being 45 mm (1.77 in), while the number of rainy days continues to descent, with its value of 10 days. The number of sun hours (without clouds) continues to rise, its value is 9 hours.
June weather
There is pending tourist season in Lewiston, ID. The number of rainy days continues to descent, while the beginning of the descent of the rainfall amount could be noticed, the value of this measure is 34 mm (1.35 in). The day temperature rises similarly to the previous month, its value is 27 °C (81 °F), and the night temperature continues to rise too, its value is 13 °C (55 °F). The number of sun hours (without clouds) rises similarly to the previous month, the value of this measure is 10 hours.
July weather
The ongoing tourist season is noticeable in Lewiston, ID. The descent of the number of rainy days can be observed, with its value of 4 days, and the rainfall amount descents similarly to the previous month as well, the value of this measure is 17 mm (0.67 in). The day temperature continues to rise, its value is 33 °C (92 °F), while the night temperature is on its maximum, the value of this measure is 16 °C (60 °F). The number of sun hours (without clouds) is on its maximum in this month.
August weather
There is pending tourist season in Lewiston, ID, and there is pending dry season as well. The number of rainy days is on its minimum, the value of this measure is 4 days, and the rainfall amount is on its minimum as well, with its value being 17 mm (0.65 in). The day temperature reaches its maximum in this month. The number of sun hours (without clouds) descent's start could be observed, with its value of 12 hours.
September weather
The ongoing tourist season is noticeable in Lewiston, ID, and the ongoing dry season is noticeable too. The beginning of the descent of the day temperature could be noticed, and the night temperature starts to descent as well, with its value being 10 °C (50 °F). The number of rainy days rise's start could be observed, its value is 5 days. The descent of the number of sun hours (without clouds) can be observed, its value is 9 hours.
October weather
The ongoing tourist season is noticeable in October in Lewiston, ID. The descent of the day temperature can be observed, with its value of 19 °C (66 °F), and the night temperature descents similarly to the previous month too, with its value of 5 °C (42 °F). The beginning of the rise of the rainfall amount could be noticed, the value of this measure is 29 mm (1.12 in), while the number of rainy days continues to rise, with its value of 8 days. The number of sun hours (without clouds) continues to descent, with its value being 6 hours.
November weather
The number of rainy days continues to rise, its value is 13 days in Lewiston, ID, and the rainfall amount continues to rise too. The day temperature descents similarly to the previous month, and the descent of the night temperature can be observed too, with its value being 2 °C (35 °F). The number of sun hours (without clouds) continues to descent, with its value of 3 hours.
December weather
The day temperature is on its minimum, with its value being 5 °C (40 °F) in Lewiston, ID, and the night temperature is on its minimum too in this month. The maximum of the number of rainy days can be noticed, its value is 13 days. The maximum of the humidity is observable in this month. The number of sun hours (without clouds) is on its minimum. The minimum of the day length can be noticed in this month.
FAQs
What level of humidity is to expect in March in Lewiston, ID?
In Lewiston, ID in March, expect humidity around 67 %.
How many sunny hours can I expect in April in Lewiston, ID?
In April in Lewiston, ID, you can expect around 7 hours of sunshine.
What is the night temperature in Lewiston, ID in May?
The average night temperature in May in Lewiston, ID is 9 °C (48 °F). The nights will be cool, layers of clothes will be needed for evening and morning walks, the hotel should be equipped with heating. That's 4 °C (39 °F) more than in the previous month.
What is the average number of rainy days in Lewiston, ID in June?
There are 8 days, which are rainy in June in Lewiston, ID, that is, days with precipitation more than 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 2.0 days of the week, or in general - 28 % days. This is a decrease of 2 days compared to the last month. This means 16 % value difference.
What is the temperature in Lewiston, ID during the day in July?
In Lewiston, ID in July, the average daily temperatures will be 33 °C (92 °F). The great temperature for lying by the sea or pool and sunbathing, everywhere else you will probably be a bit hot. That's 6 °C (42 °F) more than in the previous month. Don't forget to drink during the day, in these temperatures you should hydrate yourself a lot.
Is it hot in August in Lewiston, ID?
Yes, it is hot in August in Lewiston, ID, although the perception of heat can be subjective. Daytime temperatures rise to 33 °C (92 °F).
Is there a wet season in Lewiston, ID in September?
No, there is no wet season in Lewiston, ID in September - you can expect 5 days of rain during the month.
Are there good conditions to visit in Lewiston, ID in October?
October is a good month to visit Lewiston, ID. There are only 8 days of rain in the whole month, so you can leave your umbrella at home. There are some people, who may feel a slight chill at 19 °C (66 °F), but others will feel perfectly fine. The night temperature of 5 °C (42 °F) is not inviting for evening and night activities except for visiting a bar and having beer or two.
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