• Today

    Jul 31

    86°Lo 65°

    Less humid with sunshine

    Excellent for lawn mowing
    • Hours of Precip
      0
    • Precip
      1%
    • Hi
      RealFeel
      91°
    more
  • Sat

    Aug 1

    85°Lo 62°

    Partly sunny

    Very Good for lawn mowing
    • Hours of Precip
      0.5
    • Precip
      4%
    • Hi
      RealFeel
      87°
    more
  • Sun

    Aug 2

    86°Lo 66°

    Sun mixing with clouds

    Very Good for lawn mowing
    • Hours of Precip
      0
    • Precip
      7%
    • Hi
      RealFeel
      90°
    more
  • Mon

    Aug 3

    89°Lo 69°

    A t-storm in the afternoon

    Very Good for lawn mowing
    • Hours of Precip
      0.5
    • Precip
      55%
    • Hi
      RealFeel
      92°
  • Tue

    Aug 4

    83°Lo 63°

    Intervals of clouds and sun

    Good for lawn mowing
    • Hours of Precip
      0
    • Precip
      16%
    • Hi
      RealFeel
      86°
    more
Next Previous
Hi 89° RealFeel® 92° Precipitation 55%

Day

N

E

S

W

  • WSW 9 mph
  • Gusts: 15 mph

Partly sunny and very warm; an afternoon shower or thunderstorm around

  • Max UV Index: 7 (High)
  • Thunderstorms: 40%
  • Precipitation: 0.05 in
  • Rain: 0.05 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0.5 hrs
  • Hours of Rain: 0.5 hrs
Lo 69° RealFeel® 67° Precipitation 25%

Night

N

E

S

W

  • W 7 mph
  • Gusts: 13 mph

Clear

  • 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 - Aug 3

more Historical Weather Data >
  Today Normal Record 8/3/2014
High 89° 85° 99° (1930) 74°
Low 69° 66° 51° (1959) 64°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:07 AM with 14:14 of sunlight, then sets at 8:21 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 10:23 PM with 12:39 of moolight, then sets at 11:02 AM

Duncannon Weather Report

Harrisburg: Some Heat Relief in Store for the Next Few Days

July 31, 2015; 4:26 AM ET

Some heat relief is on its way over the next few days for central Pennsylvania. more >

Why Do Leaves Change Color?

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

Mon. Degree Days

Mon. Evapotranspiration