• Tonight

    Sep 1

    Lo 67°

    Patchy clouds, warm and humid

    Lawn Mowing Weather
    • Hours of Precip
      0
    • Precip
      35%
    • Hi
      RealFeel
      89°
    more
  • Tue

    Sep 2

    86°Lo 63°

    A couple of p.m. t-storms

    Good for lawn mowing
    • Hours of Precip
      2
    • Precip
      60%
    • Hi
      RealFeel
      91°
    more
  • Wed

    Sep 3

    83°Lo 59°

    Mostly sunny and less humid

    Very Good for lawn mowing
    • Hours of Precip
      0
    • Precip
      5%
    • Hi
      RealFeel
      86°
    more
  • Thu

    Sep 4

    86°Lo 63°

    Mostly sunny and very warm

    Excellent for lawn mowing
    • Hours of Precip
      1
    • Precip
      7%
    • Hi
      RealFeel
      88°
  • Fri

    Sep 5

    87°Lo 67°

    Sunny; very warm, more humid

    Very Good for lawn mowing
    • Hours of Precip
      1
    • Precip
      25%
    • Hi
      RealFeel
      91°
    more
Next Previous
Hi 86° RealFeel® 88° Precipitation 7%

Day

N

E

S

W

  • SSE 4 mph
  • Gusts: 8 mph

Mostly sunny and very warm

  • 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 63° RealFeel® 63° Precipitation 41%

Night

N

E

S

W

  • S 3 mph
  • Gusts: 6 mph

Mainly clear with a shower in spots

  • Max UV Index: N/A
  • Thunderstorms: 20%
  • Precipitation: 0.02 in
  • Rain: 0.02 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 1 hrs

Temperature History - Sep 4

more Historical Weather Data >
  Today Normal Record 9/4/2013
High 86° 80° 93° (1964) 82°
Low 63° 60° 46° (1946) 58°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:38 AM with 12:58 of sunlight, then sets at 7:36 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:11 PM with 10:19 of moolight, then sets at 2:30 AM

Top Story

Duncannon Weather Report

Harrisburg: Warm Week for Back to School, Work

September 1, 2014; 8:02 PM ET

While temperatures and humidity levels will fluctuate from day to day this week, unseasonable warmth will continue into next weekend around Harrisburg, Pennsylvania. more >

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Sep 20, 2011; 5:00 AM ET Why do leaves change from green to beautiful shades of red, orange and yellow in the fall?

Thu. Degree Days

Thu. Evapotranspiration