TODAY AUG19
TEMPERATURE54
HUMIDITY63
PRESSURE
WIND COND.243 2
  • 7050Mon40%40%
  • 7349Tue20%
  • 8455Wed
  • 8353Thu
  • 8050Fri
daynightWeather update from GINGER at

Winston 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
January13°F35°F24°F0.6"
February18°F41°F28°F0.7"
March25°F52°F38°F0.5"
April31°F60°F44°F0.9"
May39°F69°F53°F1.8"
June47°F79°F63°F2.0"
July55°F91°F73°F0.7"
August52°F88°F69°F1.1"
September44°F77°F59°F1.1"
October34°F62°F46°F0.8"
November23°F47°F34°F0.8"
December12°F33°F22°F0.8"

Did you know?

  • The highest monthly average temperature in Winston for July is 73 degrees.
  • The lowest monthly average temperature in Winston for December is 22 degrees.
  • The most monthly precipitation in Winston occurs in June with 2 inches.
  • The air quality index in Winston is 29% better than the national average.
  • The pollution index in Winston is 77% better than the national average.

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Compare Winston, MT Weather To Other Cities

Winston 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.
IndexWinstonMontanaNational
Air quality index353450
Pollution index1,148,190685,9255,066,862

Winston air quality information

MeasurementTotal
Days measured365
Days with good air quality315
Days with moderate air quality50
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Winston air quality information

PollutantTotal
Arsenic0.000%
Benzene0.020%
Carbon Tetrachloride0.002%
Lead0.010%
Mercury0.000%

Average monthly Winston temperature with heat index

Winston monthly precipitation with daily maximum

Winston monthly snow depth with daily maximum

Winston monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Helena Valley Southeast, MT7,5433530%
Townsend, MT1,9413530%
Montana City, MT2,8783530%
East Helena, MT2,2863530%
Spokane Creek, MT3173530%
Winston, MT2423530%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Comfort, WV2423432%
Yaak, MT2423824%
Burr Oak, IA2424020%
Empire, OH242476%
Saratoga, IN2423628%
Winston, MT2423530%
Source: The Winston, 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.