• Today

    Sep 20

    78°Lo 59°

    Clouds breaking for some sun

    Excellent for lawn mowing
    • Hours of Precip
      0
    • Precip
      1%
    • Hi
      RealFeel
      77°
    more
  • Sun

    Sep 21

    83°Lo 57°

    A t-storm in the afternoon

    Excellent for lawn mowing
    • Hours of Precip
      2
    • Precip
      58%
    • Hi
      RealFeel
      84°
  • Mon

    Sep 22

    69°Lo 47°

    Partly sunny and cooler

    Very Good for lawn mowing
    • Hours of Precip
      0
    • Precip
      25%
    • Hi
      RealFeel
      69°
    more
  • Tue

    Sep 23

    72°Lo 50°

    Mostly sunny

    Excellent for lawn mowing
    • Hours of Precip
      0
    • Precip
      1%
    • Hi
      RealFeel
      73°
    more
  • Wed

    Sep 24

    72°Lo 53°

    Nice with plenty of sunshine

    Excellent for lawn mowing
    • Hours of Precip
      0
    • Precip
      8%
    • Hi
      RealFeel
      74°
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sun
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Partly Cloudy
Partly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Partly Sunny
Partly Sunny
Partly Cloudy
Temp (°F) 64° 68° 73° 77° 79° 81° 82° 83°
RealFeel® 66° 70° 78° 83° 83° 84° 83° 82°
Humidity 87% 77% 68% 61% 55% 51% 50% 50%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
5%
 
5%
 
6%
 
6%
 
10%
 
21%
 
21%
 
26%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 3 SSW 3 SSW 4 SSW 5 SSW 5 SSW 6 SW 6 SW 7 SW
UV Index 1 2 4 5 5 5 4 2
Cloud Cover 53% 30% 13% 13% 25% 40% 49% 70%
Dew Point 61° 61° 62° 63° 62° 61° 61° 63°
Middle Grid line 85 F Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F Middle Grid line 60 F

Temperature History - Sep 21

more Historical Weather Data >
  Today Normal Record 9/21/2013
High 83° 73° 96° (1931) 70°
Low 57° 53° 30° (1956) 60°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:55 AM with 12:13 of sunlight, then sets at 7:08 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:28 AM with 13:15 of moolight, then sets at 5:43 PM

Top Story

Gettysburg Weather Report

Harrisburg: September Temperature Roller Coaster to Continue

September 20, 2014; 2:05 AM ET

In keeping with tradition, temperatures will continue their up-and-down cycle during the second half of September around Harrisburg, 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?

Sun. Overnight Freeze

Sun. Degree Days

Sun. Evapotranspiration