• Today

    May 31

    78°Lo 62°

    An afternoon thunderstorm

    Moderate ragweed pollen levels
    • Grass
      Pollen
      3 - Moderate
    • Ragweed
      Pollen
      3 - Moderate
    • Tree
      Pollen
      3 - Moderate
  • Wed

    Jun 1

    77°Lo 57°

    Heavy thunderstorms

    Moderate ragweed pollen levels
    • Grass
      Pollen
      5 - High
    • Ragweed
      Pollen
      3 - Moderate
    • Tree
      Pollen
      3 - Moderate
    more
  • Thu

    Jun 2

    75°Lo 54°

    Partly sunny and pleasant

    Moderate ragweed pollen levels
    • Grass
      Pollen
      3 - Moderate
    • Ragweed
      Pollen
      3 - Moderate
    • Tree
      Pollen
      3 - Moderate
    more
  • Fri

    Jun 3

    76°Lo 60°

    Mostly sunny and delightful

    Moderate ragweed pollen levels
    • Grass
      Pollen
      3 - Moderate
    • Ragweed
      Pollen
      3 - Moderate
    • Tree
      Pollen
      3 - Moderate
    more
  • Sat

    Jun 4

    77°Lo 56°

    Couple of thunderstorms

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Hi 78° RealFeel® 81° Precipitation 50%

Day

N

E

S

W

  • E 8 mph
  • Gusts: 15 mph

Warm with periods of clouds and sun; a shower or thunderstorm around this afternoon

  • Max UV Index: 7 (High)
  • Thunderstorms: 40%
  • Precipitation: 0.05 in
  • Rain: 0.05 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0.5 hrs
  • Hours of Rain: 0.5 hrs
Lo 62° RealFeel® 58° Precipitation 55%

Night

N

E

S

W

  • SE 6 mph
  • Gusts: 9 mph

Mostly cloudy with a shower or thunderstorm

  • Max UV Index: N/A
  • Thunderstorms: 40%
  • Precipitation: 0.1 in
  • Rain: 0.1 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 1 hrs

Lake Forest Pollen Levels - May 31

  • Extreme
  • Very High
  • High
  • Moderate
  • Low
  • Tree Pollen

    Moderate

  • Ragweed Pollen

    Moderate

  • Mold

    High

  • Grass Pollen

    Moderate

Temperature History - May 31

more Historical Weather Data >
  Today Normal Record 5/31/2015
High 78° 75° N/A 56°
Low 62° 53° N/A 43°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:18 AM with 15:03 of sunlight, then sets at 8:21 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:30 AM with 12:36 of moolight, then sets at 3:06 PM

Lake Forest Weather Report

Strong storms to take aim at Chicago, Minneapolis and St. Louis into midweek

May 31, 2016; 3:55 PM ET

The potential for locally dangerous and disruptive thunderstorms will exist over the Midwest into Wednesday evening. more >

Tue. Pollen

Tue. Dust & Dander

Tue. Wind Maps