National Weather Service forecast

Lake Forest, Illinois Weather

60°Overnight: Rain Showers
Wind S 15 mph
7-DayHourlyRadar

Lake Forest 7-Day Forecast

  1. Overnight
    60°F
    Rain Showers
    80% chance of precipitation

    Rain showers. Cloudy. Low around 60, with temperatures rising to around 63 overnight. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.

  2. Wednesday
    64°F
    Scattered Rain Showers then Patchy Drizzle
    43% chance of precipitation

    Scattered rain showers before 10am, then patchy drizzle and isolated rain showers. Mostly cloudy. High near 64, with temperatures falling to around 56 in the afternoon. South southwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

  3. Wednesday Night
    48°F
    Patchy Drizzle then Mostly Cloudy
    12% chance of precipitation

    Patchy drizzle and isolated rain showers before 10pm. Mostly cloudy, with a low around 48. Southwest wind around 15 mph, with gusts as high as 25 mph.

  4. Thursday
    55°F
    Chance Rain Showers
    35% chance of precipitation

    A chance of rain showers after 7am. Cloudy, with a high near 55. West southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

  5. Thursday Night
    40°F
    Rain Showers Likely
    65% chance of precipitation

    Rain showers likely. Cloudy, with a low around 40. Northwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.

  6. Friday
    49°F
    Slight Chance Rain Showers then Mostly Cloudy
    18% chance of precipitation

    A slight chance of rain showers before noon. Mostly cloudy, with a high near 49. Chance of precipitation is 20%.

  7. Friday Night
    35°F
    Partly Cloudy
    4% chance of precipitation

    Partly cloudy, with a low around 35.

  8. Saturday
    51°F
    Mostly Sunny
    1% chance of precipitation

    Mostly sunny, with a high near 51.

  9. Saturday Night
    36°F
    Partly Cloudy

    Partly cloudy, with a low around 36.

  10. Sunday
    55°F
    Sunny
    6% chance of precipitation

    Sunny, with a high near 55.

  11. Sunday Night
    37°F
    Mostly Clear
    1% chance of precipitation

    Mostly clear, with a low around 37.

  12. Monday
    59°F
    Mostly Sunny

    Mostly sunny, with a high near 59.

  13. Monday Night
    41°F
    Partly Cloudy
    1% chance of precipitation

    Partly cloudy, with a low around 41.

  14. Tuesday
    60°F
    Sunny

    Sunny, with a high near 60.

Issued by the National Weather Service (LOT office), updated .

Lake Forest Hourly Forecast

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Lake Forest Weather Radar

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About Lake Forest

Population (2020 Census)
19,367
Coordinates
42.235, -87.857
Elevation
669 ft
NWS forecast office
LOT
Time zone
America/Chicago
Sunrise today
6:28 AM CST
Sunset today
4:41 PM CST
Daylight today
10 h 14 min

Lake Forest Weather Questions

What is the weather forecast for Lake Forest, Illinois?

Overnight: Rain showers. Cloudy. Low around 60, with temperatures rising to around 63 overnight. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible. Wednesday: Scattered rain showers before 10am, then patchy drizzle and isolated rain showers. Mostly cloudy. High near 64, with temperatures falling to around 56 in the afternoon. South southwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

Will it rain or snow in Lake Forest this week?

The best chance of precipitation is Overnight at 80%. Periods with a 30% chance or more: Overnight (80%), Wednesday (43%), Thursday (35%), Thursday Night (65%).

How warm and how cold will it get in Lake Forest this week?

The warmest day is Wednesday, with a high near 64°F. The coldest night is Friday Night, with a low near 35°F.

What time are sunrise and sunset in Lake Forest today?

Sunrise is at 6:28 AM CST and sunset is at 4:41 PM CST, for 10 h 14 min of daylight.

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