Best year time to visit Grant Park

General weather information about Grant Park

Average annual temperature is 11.7 °C

Absolute maximum temperature: 35.4 °C

Absolute minimum temperature: -15.7 °C

Number of sunny days: 178 days

Number of rainy days: 175 days

Number of snow days: 12 days

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

Grant Park air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)16.513.920.526.232.934.534.035.432.528.821.815.1
Average daytime temperature (°C)4.27.18.717.424.028.728.527.124.617.710.77.3
Average temperature (°C)0.31.53.210.417.021.622.821.819.312.95.33.6
Average night temperature (°C)-2.6-2.5-0.94.511.215.817.717.415.09.21.01.0
Absolute minimum temperature (°C)-14.3-15.7-11.3-3.11.88.813.511.69.2-3.3-10.2-8.0

Grant Park monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.015.015.014.013.011.010.09.0
Daylight mean duration (h)9.610.611.913.314.515.114.813.812.511.19.99.3
Daylight minimum duration (h)9.010.011.012.013.014.014.013.011.010.09.09.0
Sunshine mean duration (h)3.17.76.49.510.512.311.910.88.26.77.04.2
Precipitation (mm)601031336070341381081131683286
Sunny days81710152020101613112414
Rainy days16102015111021151719516
Snow days711000000111

Grant Park - weather forecast by months

Grant Park weather in januaryGrant Park weather in februaryGrant Park weather in marchGrant Park weather in aprilGrant Park weather in mayGrant Park weather in juneGrant Park weather in julyGrant Park weather in augustGrant Park weather in septemberGrant Park weather in octoberGrant Park weather in novemberGrant Park weather in december

Best time to visit Grant Park:

The best time to visit Grant Park during the most sunny months:

  • May — 10.5(h)
  • June — 12.3(h)
  • July — 11.9(h)
  • August — 10.8(h)

The largest precipitation sum in Grant Park is at

  • March — 133(mm)
  • July — 138(mm)
  • October — 168(mm)

    • Weather forecast in the closest to Grant Park admin centers

    Weather forecast in the closest towns to Grant Park

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    Frequently asked questions

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