• Sun

    Sep 4

    79°Lo 56°

    Pleasant with plenty of sun

    Poor for skiing
    • Rain
      0 in
    • Precip
      12%
    • Hours of Precip
      0
    more
  • Mon

    Sep 5

    82°Lo 63°

    Partly sunny

    Poor for skiing
    • Rain
      0 in
    • Precip
      8%
    • Hours of Precip
      0
  • Tue

    Sep 6

    87°Lo 69°

    Plenty of sunshine

    Poor for skiing
    • Rain
      0 in
    • Precip
      14%
    • Hours of Precip
      0
    more
  • Wed

    Sep 7

    91°Lo 68°

    Sunny and hot

    Poor for skiing
    • Rain
      0 in
    • Precip
      1%
    • Hours of Precip
      0
    more
  • Thu

    Sep 8

    88°Lo 65°

    Partly sunny

    Poor for skiing
    • Rain
      0 in
    • Precip
      11%
    • Hours of Precip
      0
    more
Next Previous
Hi 82° RealFeel® 87° Precipitation 8%

Day

N

E

S

W

  • NNE 5 mph
  • Gusts: 8 mph

Partly sunny

  • Max UV Index: 6 (High)
  • Thunderstorms: 4%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 63° RealFeel® 63° Precipitation 18%

Night

N

E

S

W

  • NW 4 mph
  • Gusts: 8 mph

Clear

  • Max UV Index: N/A
  • Thunderstorms: 5%
  • 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 5

more Historical Weather Data >
  Today Normal Record 9/5/2015
High 82° 80° N/A 84°
Low 63° 64° N/A 68°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:42 AM with 12:50 of sunlight, then sets at 7:32 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 10:36 AM with 11:20 of moolight, then sets at 9:56 PM

Rockville Weather Report

September to start on cooler, less humid note in northeastern US

August 30, 2016; 1:24 AM ET

Brief relief from heat and humidity will arrive in the northeastern United States during the first days of September. more >

Which Reigns Supreme: Skiing in the East or West?

Feb 15, 2012; 5:00 AM ET As the age-old debate rages on, Violeta Yas asks enthusiasts which they prefer, and why.