• Today

    Sep 2

    90°Lo 66°

    A t-storm late this afternoon

    Warning for hair frizz
    • Wind
      Gust
      11 mph
    • Precip
      58%
    • Hours of Precip
      2
    more
  • Wed

    Sep 3

    86°Lo 65°

    Mostly sunny

    Advisory for hair frizz
    • Wind
      Gust
      6 mph
    • Precip
      5%
    • Hours of Precip
      0
    more
  • Thu

    Sep 4

    88°Lo 68°

    Very warm with periods of sun

    Warning for hair frizz
    • Wind
      Gust
      8 mph
    • Precip
      25%
    • Hours of Precip
      0
  • Fri

    Sep 5

    90°Lo 69°

    Some sun, warm and more humid

    Warning for hair frizz
    • Wind
      Gust
      7 mph
    • Precip
      13%
    • Hours of Precip
      0
    more
  • Sat

    Sep 6

    89°Lo 63°

    A couple of p.m. t-storms

    Warning for hair frizz
    • Wind
      Gust
      8 mph
    • Precip
      62%
    • Hours of Precip
      3.5
    more
Next Previous
Hi 88° RealFeel® 94° Precipitation 25%

Day

N

E

S

W

  • S 4 mph
  • Gusts: 8 mph

Very warm with intervals of clouds and sunshine

  • Max UV Index: 6 (High)
  • Thunderstorms: 24%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 68° RealFeel® 67° Precipitation 15%

Night

N

E

S

W

  • SSE 3 mph
  • Gusts: 4 mph

Clear to partly 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 - Sep 4

more Historical Weather Data >
  Today Normal Record 9/4/2013
High 88° 84° N/A 81°
Low 68° 63° N/A 54°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:41 AM with 12:55 of sunlight, then sets at 7:36 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:10 PM with 10:25 of moolight, then sets at 2:35 AM

Top Story

Frederick Weather Report

DC: Warm Week for Back to School, Work

September 2, 2014; 3:55 AM ET

While temperatures and humidity levels will fluctuate slightly from day to day this week, unseasonable warmth will continue into next weekend around Washington, D.C. more >

The History Behind the UV Index

Nov 12, 2012; 5:00 AM ET The UV index has been around since the early 1990s. It was created to help you plan outdoor activities in hopes to limit overexposure to the sun. Jeannette Calle has more.

Thu. Hair Frizz

Thu. Wind Maps

Thu. UV Index