Severe Thunderstorms and Heavy Rainfall Today from the Central Plains into the Tennessee Valley

Severe thunderstorms capable of damaging winds will be possible from the Ozark Plateau east into portions of the Southeast today. Rounds of heavy thunderstorms ahead of a slow moving front will continue locally heavy rainfall and scattered flash flooding potential from the Ozarks to the Ohio and Tennessee Valleys today. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Harrisburg, Harrisburg International Airport (KMDT)

Lat: 40.19°NLon: 76.76°WElev: 312ft.

Overcast

76°F

24°C

Humidity	77%
Wind Speed	E 6 mph
Barometer	29.97 in (1014.6 mb)
Dewpoint	68°F (20°C)
Visibility	10.00 mi
Heat Index	77°F (25°C)
Last update	11 Jul 6:56 pm EDT

More Information:

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

Extended Forecast for

Hummelstown PA

Tonight
Low: 65 °F
T-storms
Likely then
Scattered
T-storms
Sunday
High: 85 °F
Mostly Sunny
Sunday Night
Low: 64 °F
Mostly Clear
Monday
High: 85 °F
Mostly Sunny
Monday Night
Low: 65 °F
Mostly Clear
Tuesday
High: 92 °F
Hot
Tuesday Night
Low: 72 °F
Mostly Clear
Wednesday
High: 98 °F
Hot
Wednesday Night
Low: 72 °F
Mostly Clear

Detailed Forecast

Tonight

Showers and thunderstorms likely, mainly before 10pm. Mostly cloudy, with a low around 65. East wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday

Mostly sunny, with a high near 85. Southeast wind 3 to 7 mph.

Sunday Night

Mostly clear, with a low around 64. Southeast wind around 6 mph becoming calm after midnight.

Monday

Mostly sunny, with a high near 85. Calm wind becoming south 5 to 7 mph in the afternoon.

Monday Night

Mostly clear, with a low around 65. South wind around 6 mph becoming calm in the evening.

Tuesday

Sunny and hot, with a high near 92.

Tuesday Night

Mostly clear, with a low around 72.