Hazardous Weather Conditions
Current conditions at
Pottstown, Pottstown Limerick Airport (KPTW)
Lat: 40.24°NLon: 75.55°WElev: 288ft.
Fair
76°F
24°C
| Humidity | 69% |
| Wind Speed | S 6 mph |
| Barometer | 30.14 in (1020.0 mb) |
| Dewpoint | 65°F (18°C) |
| Visibility | 10.00 mi |
| Heat Index | 78°F (26°C) |
| Last update | 19 May 12:54 am EDT |
Extended Forecast for
Malvern PA
Heat Advisory May 19, 01:26am until May 20, 08:00pm
NOW until 8:00pm Wed

Heat Advisory
Overnight

Low: 69 °F
Mostly Clear
Tuesday

High: 92 °F
Mostly Sunny
Tuesday Night

Low: 72 °F
Partly Cloudy
Wednesday
High: 90 °F
Sunny then
ShowersWednesday Night

Low: 54 °F
Showers
Thursday

High: 68 °F
Chance
ShowersThursday Night

Low: 50 °F
Mostly Cloudy
Friday

High: 66 °F
Chance
Showers
Detailed Forecast
Overnight
Mostly clear, with a low around 69. South wind around 5 mph.
Tuesday
Mostly sunny, with a high near 92. West wind 5 to 15 mph.
Tuesday Night
Partly cloudy, with a low around 72. Southwest wind 5 to 10 mph.
Wednesday
Showers and possibly a thunderstorm after 2pm. High near 90. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and possibly a thunderstorm before 8pm, then showers likely between 8pm and 2am. Low around 54. North wind 5 to 10 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers after 8am. Partly sunny, with a high near 68. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Mostly cloudy, with a low around 50.
Friday
A chance of showers. Mostly cloudy, with a high near 66. Chance of precipitation is 50%.
Friday Night
Showers likely. Mostly cloudy, with a low around 48. Chance of precipitation is 70%.
Saturday
Showers. High near 63. Chance of precipitation is 80%.
Saturday Night
Showers likely. Cloudy, with a low around 52. Chance of precipitation is 70%.
Sunday
A chance of showers. Mostly cloudy, with a high near 69. Chance of precipitation is 50%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.
Memorial Day
A chance of showers. Mostly cloudy, with a high near 72. Chance of precipitation is 40%.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
Malvern PA
40.02°N 75.55°W (Elev. 499 ft)
40.02°N 75.55°W (Elev. 499 ft)
4:08 pm EDT May 18, 2026
1am EDT May 19, 2026-6pm EDT May 25, 2026



