Lake Forest Weather in September
With daytime temperatures of 31°C (88°F) and nighttime lows of 16°C (61°F), September in Lake Forest brings very high temperatures during the day. The excellent weather makes it an appealing time to visit.
Rainfall in Lake Forest in September
Typically, about a single day will experience rainfall, with an average of 4.8 mm (0.2 in) for the month. On the rare occasion it rains, expect a brief, moderate shower rather than a heavy downpour.
Temperature in Lake Forest in September
September is a excellent month in Lake Forest, with 31°C (88°F) during the day and 16°C (61°F) at night. Indoor breaks or shaded spots can make the warmer part of the day much more comfortable. With overnight lows of 16°C (61°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.
Sunshine in Lake Forest in September
The days are predominantly sunny, with an estimated total of around 290 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.Our weather planner can help you find worldwide destinations with pleasant weather during this period. January, February, March, April, May, June, October and November typically offer the best weather for Lake Forest.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Lake Forest's climate page.
Lake Forest Temperature in September
Min Temperature
16°C (61°F)
Max Temperature
31°C (88°F)
Chance of Rain
3%
Precipitation
4.8 mm (0.2 in)
Rainy days
a single day
Sunshine
290 hours *
Percentage Sunshine
*
Best Places in the United States of America in September
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Lake Forest in September
Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. With minimal rainfall expected, you can leave the rain gear at home. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Lake Forest in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Lake Forest's climate page.
See the full Lake Forest climate overview or explore weather in the United States of America.
