10-Day Weather Forecast - Decatur, IA

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  • |36°F
    Partly Cloudy
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    Tonight

    36°F

    Partly cloudy. Low temperature around 36F. Dew point will be around 34F with an average humidity of 93%. Winds will be 5 mph from the E.

    Hourly details
  • Day

    54°F

    Mostly cloudy. Patchy drizzle this morning. Highs in the lower 50s. Southeast winds around 5 mph becoming south around 5 mph this afternoon.

    Night

    42°F

    Mostly cloudy. Patchy fog in the evening then areas of fog after midnight. Lows in the upper 30s. Light and variable winds becoming north around 5 mph after midnight.

    Hourly details
  • Day

    55°F

    Areas of fog in the morning. Mostly cloudy. Highs in the lower 50s. East winds 5 to 10 mph.

    Night

    45°F

    Mostly cloudy. Lows in the lower 40s. Southeast winds 5 to 10 mph becoming southwest after midnight.

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  • Day

    58°F

    Mostly sunny. Highs in the upper 50s. West winds around 5 mph.

    Night

    40°F

    Partly cloudy in the evening then becoming mostly cloudy. Lows in the lower 40s.

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  • Weekend Weather

  • Day

    60°F

    Partly sunny in the morning then becoming mostly cloudy. Highs in the lower 60s.

    Night

    42°F

    Mostly cloudy. Lows in the upper 20s.

    Hourly details
  • Day

    41°F

    Mostly sunny and breezy. Much cooler with highs in the mid 30s. Temperature falling into the upper 20s in the afternoon.

    Night

    16°F

    Mostly clear. Cooler with lows around 10 above.

    Hourly details
  • Day

    30°F

    Sunny. Highs in the mid 20s.

    Night

    17°F

    Mostly clear in the evening then becoming partly cloudy. Lows 10 to 15.

    Hourly details
  • Day

    39°F

    Mostly sunny. Highs in the upper 30s.

    Night

    26°F

    Clear. Low temperature around 26F. Dew point will be around 20F with an average humidity of 66%. Winds will be 5 mph from the W.

  • Day

    45°F

    Sunny. High temperature around 45F. Dew point will be around 20F with an average humidity of 50%. Winds will be 5 mph from the SW.

    Night

    29°F

    Mostly clear. Low temperature around 29F. Dew point will be around 23F with an average humidity of 67%. Winds will be 4 mph from the SW.

  • Day

    45°F

    Partly cloudy. High temperature around 45F. Dew point will be around 25F with an average humidity of 55%. Winds will be 6 mph from the S.

    Night

    35°F

    Mostly cloudy. Low temperature around 35F. Dew point will be around 30F with an average humidity of 76%. Winds will be 5 mph from the S.

  • Day

    47°F

    Cloudy. High temperature around 47F. Dew point will be around 32F with an average humidity of 65%. Winds will be 3 mph from the S.

    Night

    33°F

    Partly cloudy. Low temperature around 33F. Dew point will be around 30F with an average humidity of 78%. Winds will be 2 mph from the N.