TODAY APR26
TEMPERATURE64°F
HUMIDITY52%
PRESSURE29.94 inHg
WIND COND.360° 3.5 mph
  • 7147Fri
  • 7041Sat
  • 6846Sun
  • 7457Mon
  • 7863Tue
daynightWeather update from West Plains, West Plains Municipal Airport, on 26 Apr 17:53 pm CDT

Alton 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
January3°F72°F36°F2.4"
February3°F75°F38°F2.7"
March17°F84°F49°F4.8"
April20°F90°F57°F4.5"
May34°F90°F65°F3.6"
June48°F97°F74°F3.1"
July52°F100°F76°F5.3"
August50°F104°F77°F2.8"
September39°F92°F69°F3.7"
October25°F87°F56°F4.3"
November17°F80°F48°F3.0"
December1°F67°F36°F3.4"

Did you know?

  • The highest monthly average temperature in Alton for August is 77 degrees.
  • The lowest monthly average temperature in Alton for January is 36 degrees.
  • The most monthly precipitation in Alton occurs in July with 5.3 inches.
  • The air quality index in Alton is 31% better than the national average.
  • The pollution index in Alton is 93% better than the national average.

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Compare Alton, MO Weather To Other Cities

Alton 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.
IndexAltonMissouriNational
Air quality index349750
Pollution index305,3762,360,5665,066,862

Alton air quality information

MeasurementTotal
Days measured365
Days with good air quality351
Days with moderate air quality14
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Alton air quality information

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

Average monthly Alton temperature with heat index

Alton monthly precipitation with daily maximum

Alton monthly snow depth with daily maximum

Alton monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Thomasville, MO103432%
Mammoth Spring, AR1,1113432%
Koshkonong, MO2263432%
Thayer, MO2,3223432%
Alton, MO7703432%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Oak Hill, MI7703530%
Siren, WI7703726%
Beatty, NV7701864%
Clio, SC7693040%
Middletown, CA7713138%
Alton, MO7703432%
Source: The Alton, MO 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.