Best year time to visit Arlington Heights

General weather information about Arlington Heights

Average annual temperature is 14.8 °C

Absolute maximum temperature: 38.0 °C

Absolute minimum temperature: -8.7 °C

Number of sunny days: 182 days

Number of rainy days: 182 days

Number of snow days: 1 day

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* Weather data for Arlington Heights United States is based on climate observations for 2026 year

Arlington Heights air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)18.424.025.631.128.634.138.034.237.028.026.116.7
Average daytime temperature (°C)10.512.613.722.423.228.431.730.626.921.614.111.0
Average temperature (°C)6.27.07.815.617.121.925.824.721.515.68.16.2
Average night temperature (°C)2.72.62.810.111.316.421.020.017.010.83.52.2
Absolute minimum temperature (°C)-3.0-8.7-4.32.25.912.117.615.610.84.4-5.4-3.3

Arlington Heights monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.014.014.014.013.011.010.09.0
Daylight mean duration (h)9.810.712.013.214.314.814.613.712.411.210.19.5
Daylight minimum duration (h)9.010.011.012.013.014.014.013.011.010.09.09.0
Sunshine mean duration (h)5.26.47.59.110.710.912.010.78.58.77.65.4
Precipitation (mm)72646414049117160601203664198
Sunny days15161716151391015182117
Rainy days16121414161722211513814
Snow days000000000010

Arlington Heights - weather forecast by months

Arlington Heights weather in januaryArlington Heights weather in februaryArlington Heights weather in marchArlington Heights weather in aprilArlington Heights weather in mayArlington Heights weather in juneArlington Heights weather in julyArlington Heights weather in augustArlington Heights weather in septemberArlington Heights weather in octoberArlington Heights weather in novemberArlington Heights weather in december

Best time to visit Arlington Heights:

The best time to visit Arlington Heights during the most sunny months:

  • June — 10.9(h)
  • July — 12.0(h)

The largest precipitation sum in Arlington Heights is at

  • April — 140(mm)
  • July — 160(mm)
  • September — 120(mm)
  • December — 198(mm)

    • Weather forecast in the closest to Arlington Heights admin centers

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    Frequently asked questions

    When is the best time to visit Arlington Heights?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Arlington Heights.
    What is the weather like in Arlington Heights?
    See average temperature, rainfall and daylight hours for Arlington Heights by month in the table above.
    How many sunny days does Arlington Heights have?
    The monthly weather statistics above show sunshine and rainfall patterns for Arlington Heights throughout the year.