TODAY AUG18
TEMPERATURE75
HUMIDITY47
PRESSURE
WIND COND.
  • 8750Sat
  • 8751Sun20%
  • 8247Mon
  • 8855Tue
  • 8754Wed
daynightWeather update from PLAINS at

Plains Average Weather

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
January19°F28°F23°F4.8"
February19°F30°F24°F4.6"
March23°F34°F27°F6.5"
April27°F41°F32°F3.4"
May35°F52°F42°F2.7"
June42°F60°F49°F3.5"
July53°F72°F61°F1.0"
August51°F71°F59°F1.0"
September44°F61°F50°F1.6"
October32°F45°F37°F4.2"
November23°F33°F27°F6.4"
December16°F25°F21°F6.1"

Did you know?

  • The highest monthly average temperature in Plains for July is 61 degrees.
  • The lowest monthly average temperature in Plains for December is 21 degrees.
  • The most monthly precipitation in Plains occurs in March with 6.5 inches.
  • The air quality index in Plains is 10% worse than the national average.
  • The pollution index in Plains is 78% better than the national average.

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Compare Plains, MT Weather To Other Cities

Plains 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.
IndexPlainsMontanaNational
Air quality index553450
Pollution index1,107,360685,9255,066,862

Plains air quality information

MeasurementTotal
Days measured365
Days with good air quality160
Days with moderate air quality181
Days w/ poor A.Q. for sensitive groups18
Days with unhealthy air quality6

Plains air quality information

PollutantTotal
Arsenic0.001%
Benzene0.010%
Carbon Tetrachloride0.000%
Lead0.004%
Mercury0.000%

Average monthly Plains temperature with heat index

Plains monthly precipitation with daily maximum

Plains monthly snow depth with daily maximum

Plains monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Camas, MT663824%
Weeksville, MT613824%
Hot Springs, MT4743824%
Paradise, MT1705510%
St. Regis, MT2075510%
Plains, MT7865510%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Farwell, MI7863530%
Oak Glen, CA7868570%
Eden, WI7863628%
Corydon, KY786484%
Maplesville, AL7863726%
Plains, MT7865510%
Source: The Plains, MT 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.