Active Spring Like Pattern Across the Eastern Half of the Country

The second storm will track across central and eastern portion of the country this weekend. Heavy wintry precipitation will affect the northern Plains to the upper peninsula of Michigan. Severe thunderstorms are expected along and ahead of the cold front, where very large hail, damaging winds and a few tornadoes are possible from the mid-Mississippi and Ohio Valleys to southern Plains. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Harrisburg, Harrisburg International Airport (KMDT)

Lat: 40.19°NLon: 76.76°WElev: 312ft.

Fog/Mist

54°F

12°C

Humidity	93%
Wind Speed	Calm
Barometer	30.16 in (1021.3 mb)
Dewpoint	52°F (11°C)
Visibility	3.00 mi
Last update	4 Apr 8:56 am EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Hummelstown PA

Today
High: 81 °F
Patchy Fog
then
Scattered
T-storms
Tonight
Low: 56 °F
Scattered
T-storms then
Chance
Showers
Sunday
High: 65 °F
Showers
Sunday Night
Low: 39 °F
Partly Cloudy
Monday
High: 56 °F
Mostly Sunny
Monday Night
Low: 37 °F
Slight Chance
Showers
Tuesday
High: 49 °F
Sunny
Tuesday Night
Low: 27 °F
Mostly Clear
Wednesday
High: 53 °F
Sunny

Detailed Forecast

Today

Scattered showers and thunderstorms, mainly after 5pm. Patchy fog before 10am. Otherwise, partly sunny, with a high near 81. Calm wind becoming southeast 5 to 8 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

Scattered showers and thunderstorms before 2am, then a slight chance of showers between 2am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 56. Southeast wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday

Showers and thunderstorms likely before 8am, then showers between 8am and 2pm. High near 65. West wind 11 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Sunday Night

Partly cloudy, with a low around 39. Northwest wind 10 to 13 mph, with gusts as high as 22 mph.

Monday

Mostly sunny, with a high near 56. West wind 10 to 15 mph, with gusts as high as 24 mph.

Monday Night

A slight chance of showers before 2am. Partly cloudy, with a low around 37. Chance of precipitation is 20%.

Tuesday

Sunny, with a high near 49.

Tuesday Night

Mostly clear, with a low around 27.

Wednesday

Sunny, with a high near 53.