National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Monsoon and Tropical Activity Expected to Produce Heavy Rain Across the Southwest and Southern Plains

Monsoon activity will generate localized to considerable flash flooding this weekend from the Southwest into the Southern Plains. Potential Tropical Cyclone Four is expected to produce tropical storm conditions, heavy rain, and rough surf in southern Texas as it approaches northeast Mexico. Heat is expected to peak in California this weekend with temperatures reaching the 100s. Read More >

Current conditions at

Altoona - Blair County Airport (KAOO)

Lat: 40.3°NLon: 78.32°WElev: 1467ft.

Overcast

71°F

22°C

Humidity 79%
Wind Speed SW 6 mph
Barometer 30.14 in (1019.3 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 20 Aug 12:53 am EDT
Extended Forecast for

Saint Clairsville PA

  • Overnight

    Overnight: Mostly cloudy, with a low around 62. South wind around 5 mph.

    Mostly Cloudy

    Low: 62 °F

  • Saturday

    Saturday: Mostly sunny, with a high near 81. Calm wind becoming south 5 to 9 mph in the afternoon.

    Mostly Sunny

    High: 81 °F

  • Saturday
    Night

    Saturday Night: A chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 64. South wind 7 to 9 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Slight Chance
    T-storms then
    Chance
    Showers

    Low: 64 °F

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 73. South wind 6 to 8 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Showers
    Likely

    High: 73 °F

  • Sunday
    Night

    Sunday Night: Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Cloudy, with a low around 64. South wind around 6 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Showers
    Likely

    Low: 64 °F

  • Monday

    Monday: A chance of showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 75. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Chance
    Showers then
    Showers

    High: 75 °F

  • Monday
    Night

    Monday Night: Showers and possibly a thunderstorm before 8pm. Low around 62. Chance of precipitation is 80%.

    Showers then
    Mostly Cloudy

    Low: 62 °F

  • Tuesday

    Tuesday: A chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 75. Chance of precipitation is 50%.

    Chance
    Showers then
    Chance
    T-storms

    High: 75 °F

  • Tuesday
    Night

    Tuesday Night: A chance of thunderstorms before 8pm. Partly cloudy, with a low around 60. Chance of precipitation is 30%.

    Chance
    T-storms then
    Partly Cloudy

    Low: 60 °F

Detailed Forecast

Overnight
Mostly cloudy, with a low around 62. South wind around 5 mph.
Saturday
Mostly sunny, with a high near 81. Calm wind becoming south 5 to 9 mph in the afternoon.
Saturday Night
A chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 64. South wind 7 to 9 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 73. South wind 6 to 8 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Cloudy, with a low around 64. South wind around 6 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
A chance of showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 75. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers and possibly a thunderstorm before 8pm. Low around 62. Chance of precipitation is 80%.
Tuesday
A chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 75. Chance of precipitation is 50%.
Tuesday Night
A chance of thunderstorms before 8pm. Partly cloudy, with a low around 60. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 79.
Wednesday Night
Partly cloudy, with a low around 61.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
Partly cloudy, with a low around 62.
Friday
Partly sunny, with a high near 78.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Saint Clairsville PA
 40.15°N 78.49°W (Elev. 2100 ft)
Last Update:
11:34 pm EDT Aug 19, 2022
Forecast Valid:
1am EDT Aug 20, 2022-6pm EDT Aug 26, 2022
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation