10-Day Weather Forecast - Alton, MO

-
  • |23°F
    Mostly Clear
    Arrow up

    Tonight

    23°F

    Mostly clear. Cold with lows 15 to 20. West winds 5 to 10 mph with gusts up to 20 mph becoming northwest with gusts up to 25 mph after midnight.

    Hourly details
  • Day

    29°F

    Mostly sunny. Cold with highs around 30. Northwest winds 5 to 10 mph with gusts up to 25 mph.

    Night

    13°F

    Partly cloudy in the evening then becoming mostly clear. Cold with lows around 12. Light and variable winds.

    Hourly details
  • Day

    42°F

    Sunny. Not as cool with highs in the lower 40s. Southwest winds 5 to 10 mph.

    Night

    31°F

    Mostly clear in the evening then becoming mostly cloudy. Not as cold with lows in the mid 20s. South winds around 5 mph with gusts up to 20 mph.

    Hourly details
  • Day

    48°F

    Mostly cloudy with a slight chance of rain showers in the morning then mostly sunny in the afternoon. Highs in the lower 50s. Chance of rain 20 percent.

    Night

    28°F

    Mostly clear. Lows in the lower 20s. Highs in the mid 40s.

    Hourly details
  • Day

    43°F

    Mostly clear. Lows in the lower 20s. Highs in the mid 40s.

    Night

    28°F

    Partly cloudy. Cold with lows in the lower 20s.

    Hourly details
  • Day

    40°F

    Partly sunny. Highs in the mid 40s.

    Night

    18°F

    Mostly cloudy with a chance of rain showers. A chance of freezing rain after midnight. Cold with lows in the lower 20s. Chance of precipitation 30 percent.

    Hourly details
  • Weekend Weather

  • Day

    22°F

    Mostly cloudy with a chance of snow showers and freezing rain. A chance of rain showers in the afternoon. Cooler with highs in the mid 30s. Chance of precipitation 40 percent.

    Night

    6°F

    Mostly cloudy. A chance of freezing rain and snow showers mainly in the evening. Colder with lows around 10 above. Chance of precipitation 30 percent.

    Hourly details
  • Day

    23°F

    Partly sunny. A slight chance of freezing rain in the morning. Cold with highs in the upper 20s. Chance of precipitation 20 percent.

    Night

    5°F

    Clear. Low temperature around 5F. Dew point will be around 2F with an average humidity of 71%. Winds will be 3 mph from the NE.

  • Day

    23°F

    Sunny. High temperature around 23F. Dew point will be around 7F with an average humidity of 63%. Winds will be 2 mph from the NE.

    Night

    10°F

    Clear. Low temperature around 10F. Dew point will be around 7F with an average humidity of 73%. Winds will be 2 mph from the NE.

  • Day

    27°F

    Partly cloudy. High temperature around 27F. Dew point will be around 13F with an average humidity of 68%. Winds will be 1 mph from the E.

    Night

    14°F

    Mostly cloudy. Low temperature around 14F. Dew point will be around 13F with an average humidity of 77%. Winds will be 2 mph from the NW.