Best year time to visit Waukegan

General weather information about Waukegan

Average annual temperature is 21.3 °C

Absolute maximum temperature: 41.4 °C

Absolute minimum temperature: 0.8 °C

Number of sunny days: 140 days

Number of rainy days: 225 days

Look at detailed online map of Waukegan

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

Waukegan air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)25.027.728.930.932.338.439.241.440.034.028.425.9
Average daytime temperature (°C)18.320.023.524.428.534.536.238.333.926.620.218.6
Average temperature (°C)13.414.318.119.023.328.130.031.627.721.115.212.9
Average night temperature (°C)9.710.114.014.919.223.024.925.723.017.111.38.5
Absolute minimum temperature (°C)1.30.83.19.112.418.722.322.019.27.33.10.8

Waukegan monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.013.014.014.013.012.011.010.010.0
Daylight mean duration (h)10.411.112.012.913.714.113.913.212.311.410.610.2
Daylight minimum duration (h)10.010.011.012.013.013.013.012.011.011.010.010.0
Sunshine mean duration (h)6.06.87.57.57.911.012.312.010.68.26.37.9
Precipitation (mm)236711502322071303196011210489
Sunny days12994610121711151520
Rainy days191922262520191419161511
Snow days000000000000

Waukegan - weather forecast by months

Waukegan weather in januaryWaukegan weather in februaryWaukegan weather in marchWaukegan weather in aprilWaukegan weather in mayWaukegan weather in juneWaukegan weather in julyWaukegan weather in augustWaukegan weather in septemberWaukegan weather in octoberWaukegan weather in novemberWaukegan weather in december

Best time to visit Waukegan:

The best time to visit Waukegan during the most sunny months:

  • June — 11.0(h)
  • July — 12.3(h)
  • August — 12.0(h)

The largest precipitation sum in Waukegan is at

  • January — 236(mm)
  • March — 150(mm)
  • April — 232(mm)
  • May — 207(mm)

    • Weather forecast in the closest to Waukegan admin centers

    Weather forecast in the closest towns to Waukegan

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    Frequently asked questions

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