TODAY MAY30
TEMPERATURE70
HUMIDITY71
PRESSURE29.78
WIND COND.280 8.1
  • 7050Sun20%
  • 7051Mon
  • 7654Tue
  • 7955Wed
  • 7554Thu20%
daynightWeather update from Lewiston, Lewiston-Nez Perce County Airport at
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Lewiston Average Temperature

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
January28°F43°F36°F1.0"
February30°F49°F39°F1.0"
March35°F57°F45°F1.6"
April39°F65°F51°F1.4"
May46°F75°F60°F1.5"
June53°F82°F67°F1.3"
July60°F95°F77°F0.3"
August59°F93°F76°F0.4"
September51°F82°F66°F0.6"
October42°F66°F53°F1.1"
November33°F51°F42°F1.3"
December27°F41°F34°F1.4"

Did you know?

  • The highest monthly average temperature in Lewiston for July is 77 degrees.
  • The lowest monthly average temperature in Lewiston for December is 34 degrees.
  • The most monthly precipitation in Lewiston occurs in March with 1.6 inches.
  • The air quality index in Lewiston is 38% better than the national average.
  • The pollution index in Lewiston is 33% better than the national average.

Compare Lewiston, ID Weather To Other Cities

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      Lewiston air quality index & pollution index

      In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
      IndexLewistonIdahoNational
      Air quality index313250
      Pollution index3,385,4102,232,2855,066,862

      Lewiston air quality information

      MeasurementTotal
      Days measured323
      Days with good air quality252
      Days with moderate air quality71
      Days w/ poor A.Q. for sensitive groups
      Days with unhealthy air quality

      Lewiston air quality information

      PollutantTotal
      Arsenic0.030%
      Benzene0.030%
      Carbon Tetrachloride0.020%
      Lead0.040%
      Mercury0.001%

      Average monthly Lewiston temperature with heat index

      Lewiston monthly precipitation with daily maximum

      Lewiston monthly snow depth with daily maximum

      Lewiston monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Juliaetta, ID6021080%
      Colton, WA4182354%
      Clarkston, WA7,3143138%
      West Clarkston-Highland, WA5,7063138%
      Lapwai, ID1,2023138%
      Lewiston, ID32,4843138%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Bangor, ME32,4913138%
      Englewood, CO32,523548%
      Juneau, AK32,5241962%
      Hopkinsville, KY32,4424118%
      Waxahachie, TX32,536548%
      Lewiston, ID32,4843138%
      Source: The Lewiston, ID weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.