• Early AM

    Aug 20

    Lo 61°

    Partly cloudy

    Migraine Headache Weather
    • Hi
      RealFeel
      84°
    • UV
      5 - Moderate
    • Cloud
      Cover
      21%
    more
  • Today

    Aug 20

    85°Lo 65°

    Times of clouds and sun

    Beneficial weather for migraines
    • Hi
      RealFeel
      90°
    • UV
      6 - High
    • Cloud
      Cover
      46%
    more
  • Thu

    Aug 21

    87°Lo 71°

    A couple of thunderstorms

    Beneficial weather for migraines
    • Hi
      RealFeel
      95°
    • UV
      5 - Moderate
    • Cloud
      Cover
      76%
  • Fri

    Aug 22

    89°Lo 72°

    Partly sunny with a t-storm

    Beneficial weather for migraines
    • Hi
      RealFeel
      99°
    • UV
      6 - High
    • Cloud
      Cover
      48%
    more
  • Sat

    Aug 23

    90°Lo 68°

    A p.m. t-storm possible

    Beneficial weather for migraines
    • Hi
      RealFeel
      97°
    • UV
      6 - High
    • Cloud
      Cover
      50%
    more
Next Previous
Hi 87° RealFeel® 95° Precipitation 60%

Day

N

E

S

W

  • S 7 mph
  • Gusts: 12 mph

Mostly cloudy and humid with a couple of showers and a thunderstorm

  • Max UV Index: 5 (Moderate)
  • Thunderstorms: 60%
  • Precipitation: 0.2 in
  • Rain: 0.2 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 2 hrs
  • Hours of Rain: 2 hrs
Lo 71° RealFeel® 71° Precipitation 55%

Night

N

E

S

W

  • SW 7 mph
  • Gusts: 11 mph

Partly cloudy, warm and humid with a shower or thunderstorm

  • Max UV Index: N/A
  • Thunderstorms: 40%
  • Precipitation: 0.11 in
  • Rain: 0.11 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1.5 hrs
  • Hours of Rain: 1.5 hrs

Temperature History - Aug 21

more Historical Weather Data >
  Today Normal Record 8/21/2013
High 87° 79° N/A 87°
Low 71° 58° N/A 59°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:05 AM with 13:42 of sunlight, then sets at 7:47 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:44 AM with 14:49 of moolight, then sets at 4:33 PM

Top Story

Mchenry Weather Report

Chicago: Chance of Showers, Thunderstorms to Remain Through Thursday

August 19, 2014; 7:53 PM ET

There will be an uptick in humidity and storms in Chicago for much of this week. more >

Thu. Migraine Headache

Thu. UV Index