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Heavy Rains and Potential for Flash Floods

Severe thunderstorms with damaging winds and heavy rains will be possible from the Ohio Valley to the Northeast Tuesday. In addition, heavy rains possible in the central Plains and southern Rockies. Heavy rain threat moves into the southern Mid-Atlantic Wednesday. Dry conditions remain out west where isolated dry thunderstorms could exacerbate ongoing fires and start new fires. Read More >

Hazardous Weather Conditions

Current conditions at

Altoona - Blair County Airport (KAOO)

Lat: 40.3°NLon: 78.32°WElev: 1467ft.

Fair

70°F

21°C

Humidity 93%
Wind Speed SW 5 mph
Barometer 30.15 in (1019.9 mb)
Dewpoint 68°F (20°C)
Visibility 9.00 mi
Last update 21 Aug 11:53 pm EDT
Extended Forecast for

4 Miles WNW Williamsburg PA

  • Overnight

    Overnight: A slight chance of showers and thunderstorms after 2am.  Partly cloudy, with a low around 68. Light west wind.  Chance of precipitation is 20%.

    Slight Chance
    T-storms

    Low: 68 °F

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, mainly after 5pm.  Mostly sunny, with a high near 88. Southwest wind 5 to 13 mph.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Chance
    T-storms

    High: 88 °F

  • Tuesday
    Night

    Tuesday Night: Showers and thunderstorms before 2am, then a chance of showers. Some of the storms could produce gusty winds and frequent lightning.  Low around 66. West wind 7 to 9 mph.  Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    T-storms then
    Chance
    Showers

    Low: 66 °F

  • Wednesday

    Wednesday: Partly sunny, with a high near 78. Northwest wind 6 to 9 mph.

    Partly Sunny

    High: 78 °F

  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 56. Northwest wind around 5 mph becoming calm  in the evening.

    Mostly Clear

    Low: 56 °F

  • Thursday

    Thursday: Sunny, with a high near 75.

    Sunny

    High: 75 °F

  • Thursday
    Night

    Thursday Night: Mostly clear, with a low around 54.

    Mostly Clear

    Low: 54 °F

  • Friday

    Friday: Sunny, with a high near 75.

    Sunny

    High: 75 °F

  • Friday
    Night

    Friday Night: Mostly clear, with a low around 51.

    Mostly Clear

    Low: 51 °F

Detailed Forecast

Overnight
A slight chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 68. Light west wind. Chance of precipitation is 20%.
Tuesday
A chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 88. Southwest wind 5 to 13 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and thunderstorms before 2am, then a chance of showers. Some of the storms could produce gusty winds and frequent lightning. Low around 66. West wind 7 to 9 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Partly sunny, with a high near 78. Northwest wind 6 to 9 mph.
Wednesday Night
Mostly clear, with a low around 56. Northwest wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 75.
Thursday Night
Mostly clear, with a low around 54.
Friday
Sunny, with a high near 75.
Friday Night
Mostly clear, with a low around 51.
Saturday
Sunny, with a high near 76.
Saturday Night
Mostly clear, with a low around 53.
Sunday
Mostly sunny, with a high near 77.
Sunday Night
Partly cloudy, with a low around 57.
Monday
Partly sunny, with a high near 75.
Click Map For Forecast
Point Forecast:
4 Miles WNW Williamsburg PA
 40.48°N 78.29°W (Elev. 988 ft)
9:43 pm EDT Aug 21, 2017
12am EDT Aug 22, 2017-6pm EDT Aug 27, 2017
 
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