Extreme Fire Weather Concerns for the Western U.S.; Severe Weather and Flooding Threats for the Central U.S.

Extremely critical fire weather conditions are expected to develop across the Great Basin and Southwest today, and exceptionally dry and windy conditions will promote rapid wildfire spread through the weekend. Scattered severe thunderstorms and heavy rain are possible across parts of the Ozark Plateau into lower Ohio Valley and parts of the northern Rockies into adjacent Great Plains. Read More >

Hazardous Weather Conditions

Extreme Heat Watch in effect from July 1, 12:00 PM EDT until July 4, 08:00 PM EDT

Current conditions at

Pottstown, Pottstown Limerick Airport (KPTW)

Lat: 40.24°NLon: 75.55°WElev: 288ft.

Overcast

67°F

19°C

Humidity	97%
Wind Speed	Calm
Barometer	29.99 in (1015.2 mb)
Dewpoint	66°F (19°C)
Visibility	NA
Last update	28 Jun 5:54 am EDT

More Information:

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

Extended Forecast for

Harleysville PA

Extreme Heat Watch July 1, 12:00pm until July 4, 08:00pm

Click here for hazard details and duration

Extreme Heat Watch

Today
High: 82 °F
Patchy Fog
then Slight
Chance
T-storms
Tonight
Low: 62 °F
Partly Cloudy
then Patchy
Fog
Monday
High: 86 °F
Patchy Fog
then Sunny
Monday Night
Low: 63 °F
Mostly Clear
Tuesday
High: 89 °F
Mostly Sunny
Tuesday Night
Low: 67 °F
Mostly Clear
Wednesday
High: 95 °F
Sunny
Wednesday Night
Low: 73 °F
Mostly Clear
Thursday
High: 100 °F
Hot

Detailed Forecast

Today

A slight chance of showers and thunderstorms after 2pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 82. Calm wind becoming northeast around 5 mph. Chance of precipitation is 20%.

Tonight

Patchy fog after midnight. Otherwise, increasing clouds, with a low around 62. Calm wind.

Monday

Patchy fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 86. Calm wind.

Monday Night

Mostly clear, with a low around 63. Calm wind.

Tuesday

Mostly sunny, with a high near 89. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

Tuesday Night

Mostly clear, with a low around 67.

Wednesday

Sunny, with a high near 95.