Hazardous Weather Conditions
Current conditions at
Harrisburg, Capital City Airport (KCXY)
Lat: 40.22°NLon: 76.86°WElev: 335ft.
Overcast
77°F
25°C
| Humidity | 74% |
| Wind Speed | E 7 mph |
| Barometer | 29.95 in (1014.1 mb) |
| Dewpoint | 68°F (20°C) |
| Visibility | 10.00 mi |
| Heat Index | 79°F (26°C) |
| Last update | 20 Aug 12:56 pm EDT |
Extended Forecast for
Mechanicsburg PA
Flood Watch August 20, 01:31pm until August 20, 04:00pm
NOW until 4:00pm Thu
Flood Watch
This Afternoon
High: 77 °F
Heavy Rain
Tonight
Low: 61 °F
Rain Likely
then Partly
CloudyFriday
High: 80 °F
Mostly Sunny
Friday Night
Low: 65 °F
Slight Chance
T-storms then
Showers
LikelySaturday
High: 79 °F
Showers
LikelySaturday Night
Low: 64 °F
Showers
LikelySunday
High: 80 °F
Mostly Sunny
Sunday Night
Low: 60 °F
Mostly Clear
Detailed Forecast
This Afternoon
Rain and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 77. Northeast wind 3 to 6 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Tonight
Rain and thunderstorms likely before 8pm, then a slight chance of rain between 8pm and 9pm. Cloudy, then gradually becoming partly cloudy, with a low around 61. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Mostly sunny, with a high near 80. Light and variable wind.
Friday Night
A slight chance of showers before 11pm, then a slight chance of showers and thunderstorms between 11pm and 2am, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 65. Calm wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 79. Light east wind. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Mostly sunny, with a high near 80.
Sunday Night
Mostly clear, with a low around 60.
Monday
Sunny, with a high near 78.
Monday Night
Mostly clear, with a low around 59.
Tuesday
Sunny, with a high near 79.
Tuesday Night
Partly cloudy, with a low around 61.
Wednesday
A chance of showers. Mostly sunny, with a high near 81. Chance of precipitation is 30%.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Mechanicsburg PA
40.2°N 77°W (Elev. 476 ft)
40.2°N 77°W (Elev. 476 ft)
12:26 pm EDT Aug 20, 2026
1pm EDT Aug 20, 2026-6pm EDT Aug 26, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
