Strong Storm System Brings Heavy Mountain Snow to the Sierra Nevada and Critical Fire Weather Conditions to the Plains

A Pacific storm system will continue to bring low elevation rain and mountain snow to much of the West through Wednesday, with heavy mountain snow expected in the higher elevations of the Sierra Nevada. This system will also bring strong winds to the Intermountain West, Rockies, and Plains, which will create Critical fire weather conditions for the High Plains. Read More >

Current conditions at

Harrisburg, Harrisburg International Airport (KMDT)

Lat: 40.19°NLon: 76.76°WElev: 312ft.

Partly Cloudy

46°F

8°C

Humidity	73%
Wind Speed	NE 5 mph
Barometer	30.05 in (1017.6 mb)
Dewpoint	38°F (3°C)
Visibility	10.00 mi
Wind Chill	44°F (7°C)
Last update	22 Apr 5:56 am EDT

More Information:

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

Extended Forecast for

Hummelstown PA

Today
High: 69 °F
Scattered
Showers then
Partly Sunny
Tonight
Low: 49 °F
Partly Cloudy
Thursday
High: 75 °F
Mostly Sunny
Thursday Night
Low: 50 °F
Partly Cloudy
Friday
High: 70 °F
Chance
Showers
Friday Night
Low: 49 °F
Chance
Showers
Saturday
High: 54 °F
Showers
Saturday Night
Low: 44 °F
Showers
Sunday
High: 63 °F
Chance
Showers then
Partly Sunny

Detailed Forecast

Today

Scattered showers, mainly before 10am. Mostly cloudy, with a high near 69. Southeast wind around 6 mph becoming calm in the afternoon. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

Tonight

Partly cloudy, with a low around 49. Calm wind.

Thursday

Mostly sunny, with a high near 75. Calm wind becoming northwest 5 to 7 mph in the afternoon.

Thursday Night

Partly cloudy, with a low around 50. Calm wind.

Friday

A chance of showers, with thunderstorms also possible after 5pm. Partly sunny, with a high near 70. Light northeast wind. Chance of precipitation is 30%.

Friday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 49. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday

Showers. High near 54. Chance of precipitation is 80%.

Saturday Night

Showers, mainly before 2am. Low around 44. Chance of precipitation is 80%.

Sunday

A chance of showers before 8am. Mostly cloudy, with a high near 63. Chance of precipitation is 30%.

Sunday Night

Partly cloudy, with a low around 43.

Monday

Mostly sunny, with a high near 66.

Monday Night

A chance of showers. Mostly cloudy, with a low around 47. Chance of precipitation is 50%.