Blistering Heat Wave Across Southern Plains and Lower Mississippi Valley This Weekend; Wet Weather In The East

A scorching Heat Wave will continue across the southern tier of the country. Temperatures and Heat Indices will reach or easily surpass triple digits, as a ridge of high pressure dominates. Widespread Excessive Heat Warnings and Advisories are in effect, will persist and spread into the Southwest/CA next week. Meanwhile, locally heavy rain will be possible for the OH Valley/Mid-Atl/Northeast. Read More >

Current conditions at

Lancaster, Lancaster Airport (KLNS)

Lat: 40.12°NLon: 76.29°WElev: 397ft.

A Few Clouds

66°F

19°C

Humidity 84%
Wind Speed E 7 mph
Barometer 30.03 in (1016.6 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 21 Jul 6:53 am EDT
Extended Forecast for

Columbia PA

Flash Flood Watch July 21, 02:00pm until July 22, 02:00am
Click here for hazard details and duration
Flash Flood Watch
  • Today

    Today: Rain, mainly after 11am. The rain could be heavy at times.  High near 70. East wind 3 to 8 mph.  Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    Heavy Rain

    High: 70 °F

  • Tonight

    Tonight: Rain and possibly a thunderstorm before 2am, then a chance of rain. Some of the storms could produce heavy rainfall.  Low around 60. North wind 7 to 13 mph.  Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    Heavy Rain

    Low: 60 °F

  • Sunday

    Sunday: A chance of rain before 8am, then a chance of showers between 8am and noon, then showers likely and possibly a thunderstorm after noon.  Cloudy, with a high near 78. Calm wind becoming southeast 5 to 8 mph in the afternoon.  Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Chance Rain
    then Showers
    Likely

    High: 78 °F

  • Sunday
    Night

    Sunday Night: Showers likely and possibly a thunderstorm.  Cloudy, with a low around 70. Southeast wind 7 to 9 mph.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Showers
    Likely

    Low: 70 °F

  • Monday

    Monday: Showers and possibly a thunderstorm.  High near 82. Southeast wind 8 to 10 mph.  Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    T-storms

    High: 82 °F

  • Monday
    Night

    Monday Night: Showers likely and possibly a thunderstorm.  Cloudy, with a low around 72. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Showers
    Likely

    Low: 72 °F

  • Tuesday

    Tuesday: Showers and thunderstorms likely.  Mostly cloudy, with a high near 83. Chance of precipitation is 60%.

    T-storms
    Likely

    High: 83 °F

  • Tuesday
    Night

    Tuesday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 72. Chance of precipitation is 40%.

    Chance
    T-storms

    Low: 72 °F

  • Wednesday

    Wednesday: Showers and thunderstorms likely.  Mostly cloudy, with a high near 81. Chance of precipitation is 70%.

    T-storms
    Likely

    High: 81 °F

Detailed Forecast

Today
Rain, mainly after 11am. The rain could be heavy at times. High near 70. East wind 3 to 8 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Tonight
Rain and possibly a thunderstorm before 2am, then a chance of rain. Some of the storms could produce heavy rainfall. Low around 60. North wind 7 to 13 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Sunday
A chance of rain before 8am, then a chance of showers between 8am and noon, then showers likely and possibly a thunderstorm after noon. Cloudy, with a high near 78. Calm wind becoming southeast 5 to 8 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 70. Southeast wind 7 to 9 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Monday
Showers and possibly a thunderstorm. High near 82. Southeast wind 8 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 72. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
Showers and thunderstorms likely. Mostly cloudy, with a high near 83. Chance of precipitation is 60%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Chance of precipitation is 40%.
Wednesday
Showers and thunderstorms likely. Mostly cloudy, with a high near 81. Chance of precipitation is 70%.
Wednesday Night
Showers and thunderstorms likely. Cloudy, with a low around 71. Chance of precipitation is 60%.
Thursday
Showers and thunderstorms likely. Cloudy, with a high near 82. Chance of precipitation is 60%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Chance of precipitation is 40%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 40%.
Click Map For Forecast
Point Forecast:
Columbia PA
 40.04°N 76.51°W (Elev. 299 ft)
7:12 am EDT Jul 21, 2018
7am EDT Jul 21, 2018-6pm EDT Jul 27, 2018
 
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Additional Resources

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