Lewiston weather live forecast

Today's maximum temperature in Lewiston is expected to be 104°F. Select a day from the live weather forecast for Lewiston, Idaho, USA for more weather parameters.

5-day weather forecast updated at 04:01 on Tuesday 2nd September 2025 GMT

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The 5-day weather forecast for Idaho (Lewiston) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Lewiston weather forecast by day

Below are the detailed weather forecasts for Lewiston for the next 5 days.

Lewiston weather for Tuesday 2nd September 2025

Expect scattered clouds in Lewiston, Idaho with a maximum temperature of 104°F, very high levels of heat & humidity, maximum UV of 6 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 6 mph from the east.

  • 104°F maximum temperature104
    °F maximum temperature
  • 72°F minimum temperature72
    °F minimum temperature
  • Scattered clouds
    scattered clouds
  • 12 hours of bright sunshine12
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Very high heat & humidityVH
    very high heat & humidity
  • Light breeze of 6 mph from the East6
    mph wind from E

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Lewiston weather for Wednesday 3rd September 2025

Expect clear skies in Lewiston, Idaho with a maximum temperature of 104°F, very high levels of heat & humidity, maximum UV of 7 (High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 6 mph from the east.

  • 104°F maximum temperature104
    °F maximum temperature
  • 72°F minimum temperature72
    °F minimum temperature
  • Clear skies
    clear skies
  • 13 hours of bright sunshine13
    hours of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Very high heat & humidityVH
    very high heat & humidity
  • Light breeze of 6 mph from the East6
    mph wind from E

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Lewiston weather for Thursday 4th September 2025

Expect scattered clouds in Lewiston, Idaho with a maximum temperature of 102°F, very high levels of heat & humidity, maximum UV of 6 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 mph from the north-west.

  • 102°F maximum temperature102
    °F maximum temperature
  • 72°F minimum temperature72
    °F minimum temperature
  • Scattered clouds
    scattered clouds
  • 12 hours of bright sunshine12
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Very high heat & humidityVH
    very high heat & humidity
  • Light breeze of 7 mph from the North-West7
    mph wind from NW

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Lewiston weather for Friday 5th September 2025

Expect scattered clouds in Lewiston, Idaho with a maximum temperature of 99°F, high levels of heat & humidity, maximum UV of 6 (High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 6 mph from the east.

  • 99°F maximum temperature99
    °F maximum temperature
  • 72°F minimum temperature72
    °F minimum temperature
  • Scattered clouds
    scattered clouds
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • High heat & humidityH
    high heat & humidity
  • Light breeze of 6 mph from the East6
    mph wind from E

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Lewiston weather for Saturday 6th September 2025

Expect isolated thunderstorms in Lewiston, Idaho with a maximum temperature of 90°F, moderate levels of heat & humidity, maximum UV of 1 (Low) and 6 hours of bright sunshine. There are 5-10 mm of rainfall expected with 33% chance of some rain and a light breeze of 7 mph from the east.

  • 90°F maximum temperature90
    °F maximum temperature
  • 72°F minimum temperature72
    °F minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 33% chance of some rain33
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Light breeze of 7 mph from the East7
    mph wind from E

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