10-Day Weather Forecast - Arlington Heights, IL

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  • 89|72°F
    Mostly Cloudy

    Today

    89°F

    Mostly cloudy. Smoke. A slight chance of showers and thunderstorms late. Highs in the lower 90s inland but only in the lower 80s near the lake. Northeast winds 5 to 10 mph. Chance of precipitation 20 percent.

    Tonight

    72°F

    Mostly cloudy. Smoke early in the evening then areas of smoke in the late evening and overnight. Lows in the lower 70s. East winds around 5 mph.

    Hourly details
  • 89|74°F
    50% Chance of Storms

    Day

    89°F

    Partly cloudy. Areas of smoke early in the morning then patchy smoke late in the morning. A slight chance of thunderstorms early in the afternoon. A chance of showers in the afternoon. A chance of thunderstorms late. Humid with highs in the lower 90s. Southwest winds 5 to 10 mph. Chance of precipitation 50 percent.

    Night

    74°F

    Partly cloudy in the evening then clearing. Humid with lows in the mid 70s. Southwest winds 5 to 10 mph.

    Hourly details
  • 90|66°F
    60% Chance of Storms

    Day

    90°F

    Mostly sunny in the morning then becoming partly cloudy. Showers likely with a chance of thunderstorms in the afternoon. Humid with highs in the lower 90s. West winds 10 to 15 mph becoming northwest in the afternoon. Chance of precipitation 60 percent. Heat index values up to 100.

    Night

    66°F

    Mostly clear. Lows in the mid 60s.

    Hourly details
  • 81|65°F
    Mostly Sunny

    Day

    81°F

    Mostly sunny. Highs in the lower 80s.

    Night

    65°F

    Mostly clear in the evening then becoming partly cloudy. Lows in the upper 60s.

    Hourly details
  • 86|72°F
    30% Chance Rain Showers

    Day

    86°F

    Partly cloudy. A chance of showers in the afternoon. Highs in the upper 80s. Chance of precipitation 30 percent.

    Night

    72°F

    Partly cloudy. Showers likely with a chance of thunderstorms in the evening then a chance of showers after midnight. Lows in the upper 60s. Chance of precipitation 60 percent.

    Hourly details
  • 89|63°F
    Partly Cloudy

    Day

    89°F

    Partly cloudy. Highs in the lower 80s.

    Night

    63°F

    Mostly clear. Lows in the mid 60s.

    Hourly details
  • 75|59°F
    Partly Cloudy

    Day

    75°F

    Mostly sunny in the morning then becoming partly cloudy. Highs around 80.

    Night

    59°F

    Mostly clear. Low temperature around 59F. Dew point will be around 55F with an average humidity of 74%. Winds will be 2 mph from the NW.

  • 81|65°F
    Sunny

    Day

    81°F

    Sunny. High temperature around 81F. Dew point will be around 63F with an average humidity of 65%. Winds will be 2 mph from the W.

    Night

    65°F

    Mostly clear. Low temperature around 65F. Dew point will be around 62F with an average humidity of 79%. Winds will be 1 mph from the W.

  • 81|67°F
    Sunny

    Day

    81°F

    Sunny. High temperature around 81F. Dew point will be around 65F with an average humidity of 68%. Winds will be 1 mph from the E.

    Night

    67°F

    Clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 67F. Dew point will be around 64F with an average humidity of 82%. Winds will be 2 mph from the S.

  • 82|65°F
    Sunny

    Day

    82°F

    Sunny. High temperature around 82F. Dew point will be around 67F with an average humidity of 71%. Winds will be 1 mph from the N.

    Night

    65°F

    Clear. Low temperature around 65F. Dew point will be around 63F with an average humidity of 82%. Winds will be 2 mph from the NE.