• Today

    Jul 28

    91°Lo 72°

    Humid with a heavy t-storm

    Poor for biking
    • Precip
      55%
    • Hours of Precip
      6.5
    • Wind
      Gust
      6 mph
    more
  • Fri

    Jul 29

    85°Lo 66°

    Some rain and a thunderstorm

    Poor for biking
    • Precip
      56%
    • Hours of Precip
      2.5
    • Wind
      Gust
      12 mph
    more
  • Sat

    Jul 30

    85°Lo 68°

    A p.m. t-storm in spots

    Good for biking
    • Precip
      42%
    • Hours of Precip
      3
    • Wind
      Gust
      8 mph
    more
  • Sun

    Jul 31

    88°Lo 66°

    A couple of thunderstorms

    Poor for biking
    • Precip
      60%
    • Hours of Precip
      3
    • Wind
      Gust
      8 mph
  • Mon

    Aug 1

    88°Lo 65°

    A shower or t-storm in spots

    Fair for biking
    • Precip
      40%
    • Hours of Precip
      1
    • Wind
      Gust
      8 mph
    more
Next Previous
Hi 88° RealFeel® 100° Precipitation 60%

Day

N

E

S

W

  • NNW 5 mph
  • Gusts: 8 mph

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

  • Max UV Index: 5 (Moderate)
  • Thunderstorms: 60%
  • Precipitation: 0.39 in
  • Rain: 0.39 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 3 hrs
  • Hours of Rain: 3 hrs
Lo 66° RealFeel® 67° Precipitation 25%

Night

N

E

S

W

  • NNW 4 mph
  • Gusts: 6 mph

Mostly cloudy and humid

  • Max UV Index: N/A
  • Thunderstorms: 24%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Jul 31

more Historical Weather Data >
  Today Normal Record 7/31/2015
High 88° 88° N/A 91°
Low 66° 68° N/A 61°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:09 AM with 14:13 of sunlight, then sets at 8:22 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:56 AM with 14:38 of moolight, then sets at 6:34 PM

Frederick Weather Report

Torrential downpours in northeastern US to ease heat wave, raise flash flood risk

July 28, 2016; 11:11 AM ET

As July draws to a close, a storm system swinging up from the Deep South will bring downpours to the northeastern U.S. and break the back of an extended heat wave. more >

Is Your Outdoor Gear Waterproof?

Dec 5, 2012; 5:00 AM ET Now that it's cold enough to hit the slopes, you may want to look more closely at what materials your winter sports gear is made of. As it turns out, not all waterproofing is created equal.