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Information on the severe weather that occurred on Saturday, July 18th, 2026

Current conditions at

Harrisburg, Harrisburg International Airport (KMDT)

Lat: 40.19°NLon: 76.76°WElev: 312ft.

A Few Clouds

78°F

26°C

Humidity	60%
Wind Speed	SW 5 mph
Barometer	30.18 in (1021.8 mb)
Dewpoint	63°F (17°C)
Visibility	10.00 mi
Heat Index	80°F (27°C)
Last update	15 Aug 10:56 am EDT

More Information:

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

Extended Forecast for

2 Miles SE Hummelstown PA

Today
High: 86 °F
Sunny
Tonight
Low: 68 °F
Increasing
Clouds
Sunday
High: 80 °F
Showers
Sunday Night
Low: 70 °F
Showers
Monday
High: 86 °F
Mostly Sunny
Monday Night
Low: 65 °F
Mostly Clear
Tuesday
High: 84 °F
Sunny
Tuesday Night
Low: 63 °F
Mostly Clear
Wednesday
High: 86 °F
Sunny

Detailed Forecast

Today

Sunny, with a high near 86. Light north wind.

Tonight

Increasing clouds, with a low around 68. Southeast wind 3 to 5 mph.

Sunday

Showers and possibly a thunderstorm, mainly before 5pm, then a chance of showers and thunderstorms after 5pm. High near 80. South wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

Sunday Night

Showers and possibly a thunderstorm before 2am, then a slight chance of showers. Low around 70. Southeast wind 8 to 11 mph becoming west after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

Monday

Mostly sunny, with a high near 86. Northwest wind 8 to 10 mph.

Monday Night

Mostly clear, with a low around 65.

Tuesday

Sunny, with a high near 84.

Tuesday Night

Mostly clear, with a low around 63.

Wednesday

Sunny, with a high near 86.

Wednesday Night

A chance of showers before 2am. Partly cloudy, with a low around 68. Chance of precipitation is 40%.