Hot temperatures in the Southwest U.S.

Heat is building once again into the Southwest. Temperatures over 100 degrees can be expected in the Desert Southwest through most of this week. Temperatures over 100 will also expand to the Intermountain West on Tuesday.
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Hazardous Weather Conditions

Current conditions at

Pottstown, Pottstown Limerick Airport (KPTW)

Lat: 40.24°NLon: 75.55°WElev: 288ft.

Overcast

69°F

21°C

Humidity 96%
Wind Speed Calm
Barometer 29.96 in (1014.1 mb)
Dewpoint 68°F (20°C)
Visibility 7.00 mi
Last update 28 Jun 4:54 am EDT
Extended Forecast for

Downingtown PA

  • Overnight

    Overnight: Scattered showers.  Cloudy, with a low around 67. Light south wind.  Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Scattered
    Showers

    Low: 67 °F

  • Tuesday

    Tuesday: Scattered showers before 10am, then a chance of showers and thunderstorms between 10am and 5pm, then showers likely and possibly a thunderstorm after 5pm.  Cloudy, with a high near 82. Calm wind becoming south 5 to 7 mph in the afternoon.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Showers
    Likely

    High: 82 °F

  • Tuesday
    Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 11pm, then a chance of showers and thunderstorms between 11pm and 1am, then a slight chance of showers after 1am. Some of the storms could produce small hail and gusty winds.  Mostly cloudy, with a low around 64. South wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Showers
    Likely then
    Chance
    T-storms

    Low: 64 °F

  • Wednesday

    Wednesday: Mostly sunny, with a high near 81. West wind 6 to 9 mph.

    Mostly Sunny

    High: 81 °F

  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 60. Northwest wind around 6 mph.

    Mostly Clear

    Low: 60 °F

  • Thursday

    Thursday: Sunny, with a high near 84.

    Sunny

    High: 84 °F

  • Thursday
    Night

    Thursday Night: Mostly clear, with a low around 64.

    Mostly Clear

    Low: 64 °F

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 8am.  Partly sunny, with a high near 85. Chance of precipitation is 40%.

    Chance
    T-storms

    High: 85 °F

  • Friday
    Night

    Friday Night: A chance of showers and thunderstorms.  Partly cloudy, with a low around 67. Chance of precipitation is 30%.

    Chance
    T-storms

    Low: 67 °F

Detailed Forecast

Overnight
Scattered showers. Cloudy, with a low around 67. Light south wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Scattered showers before 10am, then a chance of showers and thunderstorms between 10am and 5pm, then showers likely and possibly a thunderstorm after 5pm. Cloudy, with a high near 82. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers likely and possibly a thunderstorm before 11pm, then a chance of showers and thunderstorms between 11pm and 1am, then a slight chance of showers after 1am. Some of the storms could produce small hail and gusty winds. Mostly cloudy, with a low around 64. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Mostly sunny, with a high near 81. West wind 6 to 9 mph.
Wednesday Night
Mostly clear, with a low around 60. Northwest wind around 6 mph.
Thursday
Sunny, with a high near 84.
Thursday Night
Mostly clear, with a low around 64.
Friday
A chance of showers, with thunderstorms also possible after 8am. Partly sunny, with a high near 85. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 67. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 87.
Saturday Night
Partly cloudy, with a low around 62.
Sunday
Mostly sunny, with a high near 83.
Sunday Night
Mostly clear, with a low around 63.
Independence Day
Sunny, with a high near 84.
Click Map For Forecast
Point Forecast:
Downingtown PA
 40.02°N 75.7°W (Elev. 338 ft)
4:00 am EDT Jun 28, 2016
5am EDT Jun 28, 2016-6pm EDT Jul 4, 2016
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database