Hazardous Weather Conditions
Current conditions at
Harrisburg, Harrisburg International Airport (KMDT)
Lat: 40.19°NLon: 76.76°WElev: 312ft.
Light Rain
80°F
27°C
| Humidity | 85% |
| Wind Speed | W 5 mph |
| Barometer | 30.06 in (1017.9 mb) |
| Dewpoint | 75°F (24°C) |
| Visibility | 9.00 mi |
| Heat Index | 85°F (29°C) |
| Last update | 5 Aug 4:56 pm EDT |
Extended Forecast for
2 Miles WSW Mount Gretna PA
This Afternoon
High: 84 °F
Showers
LikelyTonight
Low: 71 °F
Showers
LikelyThursday
High: 89 °F
Partly Sunny
then Chance
T-stormsThursday Night
Low: 71 °F
Heavy Rain
Friday
High: 88 °F
Partly Sunny
then ShowersFriday Night
Low: 69 °F
Showers then
Chance
ShowersSaturday
High: 87 °F
Mostly Sunny
then Chance
T-stormsSaturday Night
Low: 70 °F
Chance
T-storms then
Chance
ShowersSunday
High: 87 °F
Sunny
Detailed Forecast
This Afternoon
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 84. Southeast wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely before 2am, then a slight chance of showers between 2am and 3am. Mostly cloudy, with a low around 71. South wind 3 to 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 89. Southwest wind 5 to 8 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm, then a chance of showers after 11pm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 71. South 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
Showers and possibly a thunderstorm after 2pm. High near 88. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Low around 69. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87. Chance of precipitation is 40%.
Saturday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 70. Chance of precipitation is 30%.
Sunday
Sunny, with a high near 87.
Sunday Night
Mostly clear, with a low around 68.
Monday
Mostly sunny, with a high near 88.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 30%.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 40%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 40%.
Wednesday
A chance of showers. Partly sunny, with a high near 83.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
2 Miles WSW Mount Gretna PA
40.24°N 76.5°W (Elev. 673 ft)
40.24°N 76.5°W (Elev. 673 ft)
3:31 pm EDT Aug 5, 2026
5pm EDT Aug 5, 2026-6pm EDT Aug 12, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
