Best year time to visit Lake Forest

General weather information about Lake Forest

Average annual temperature is 16.5 °C

Absolute maximum temperature: 35.0 °C

Absolute minimum temperature: -4.9 °C

Number of sunny days: 170 days

Number of rainy days: 194 days

Number of snow days: 1 day

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

Lake Forest air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)20.224.324.927.030.432.333.935.032.427.624.820.2
Average daytime temperature (°C)13.616.617.621.124.628.631.530.827.622.116.713.0
Average temperature (°C)8.611.311.915.219.022.725.625.122.116.811.17.8
Average night temperature (°C)4.97.26.910.414.417.720.920.817.212.37.13.6
Absolute minimum temperature (°C)-3.8-3.6-4.94.07.214.918.216.912.35.9-2.7-3.1

Lake Forest monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.014.014.013.012.011.010.010.0
Daylight mean duration (h)10.211.012.013.013.914.414.213.412.411.310.49.9
Daylight minimum duration (h)9.010.011.012.013.014.013.012.011.010.010.09.0
Sunshine mean duration (h)5.66.28.49.09.911.211.710.310.28.76.86.3
Precipitation (mm)13612614015110212182202854746120
Sunny days1181812101181020231920
Rainy days19201318211923211081111
Snow days100000000000

Lake Forest - weather forecast by months

Lake Forest weather in januaryLake Forest weather in februaryLake Forest weather in marchLake Forest weather in aprilLake Forest weather in mayLake Forest weather in juneLake Forest weather in julyLake Forest weather in augustLake Forest weather in septemberLake Forest weather in octoberLake Forest weather in novemberLake Forest weather in december

Best time to visit Lake Forest:

The best time to visit Lake Forest during the most sunny months:

  • June — 11.2(h)
  • July — 11.7(h)

The largest precipitation sum in Lake Forest is at

  • April — 151(mm)
  • August — 202(mm)

    • Weather forecast in the closest to Lake Forest admin centers

    Weather forecast in the closest towns to Lake Forest

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    Frequently asked questions

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