Heavy Rainfall Threat for Portions of Mid-Atlantic and Northeast; Heat Linger for Southeast and Expands for the West

Moisture and nearby frontal boundary will focus more showers and thunderstorms for portions of the Mid-Atlantic and Northeast today. Rainfall could be locally heavy resulting instances of flash flooding. Meanwhile, the heat lingers for areas of the Southeast and expands across the Western U.S. the next several days. Between these areas, severe thunderstorms possible for the Plains and Midwest. Read More >

Hazardous Weather Conditions

Current conditions at

Harrisburg, Harrisburg International Airport (KMDT)

Lat: 40.19°NLon: 76.76°WElev: 312ft.

Light Rain

76°F

24°C

Humidity	85%
Wind Speed	NE 6 mph
Barometer	30.01 in (1016.0 mb)
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Heat Index	77°F (25°C)
Last update	6 Jul 12:56 pm EDT

More Information:

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

Extended Forecast for

2 Miles SSE Hummelstown PA

Flood Watch July 6, 01:27pm until July 6, 08:00pm

Click here for hazard details and duration

Flood Watch

Flood Watch July 6, 01:27pm until July 6, 08:00pm
NOW until 8:00pm Mon
Flood Watch
This Afternoon
High: 79 °F
Showers
Likely
Tonight
Low: 65 °F
Showers
Likely
Tuesday
High: 77 °F
Slight Chance
Showers then
Mostly Cloudy
Tuesday Night
Low: 64 °F
Chance
Showers
Wednesday
High: 82 °F
Partly Sunny
Wednesday Night
Low: 66 °F
Partly Cloudy
Thursday
High: 87 °F
Partly Sunny
then Chance
T-storms
Thursday Night
Low: 70 °F
Chance
T-storms then
Partly Cloudy

Detailed Forecast

This Afternoon

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3pm. Cloudy, with a high near 79. East wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

A chance of showers and thunderstorms, then showers likely after 3am. Cloudy, with a low around 65. East wind 6 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday

A slight chance of showers before 9am, then a slight chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 77. Northeast wind around 6 mph. Chance of precipitation is 20%.

Tuesday Night

A chance of showers before 2am. Mostly cloudy, with a low around 64. Northeast wind 3 to 7 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Wednesday

Partly sunny, with a high near 82. Light northeast wind.

Wednesday Night

Partly cloudy, with a low around 66.

Thursday

A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 50%.

Thursday Night

A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 70. Chance of precipitation is 30%.

Friday

Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 87. Chance of precipitation is 60%.

Friday Night

Showers likely and possibly a thunderstorm before 8pm, then a chance of showers after 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.

Saturday

A chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 40%.

Saturday Night

A chance of thunderstorms. Partly cloudy, with a low around 65. Chance of precipitation is 30%.

Sunday

A chance of showers. Mostly sunny, with a high near 83. Chance of precipitation is 30%.