Thunderstorms and Heavy Rainfall from the Plains to the Mid-Atlantic

Severe thunderstorms producing damaging winds are most likely over parts of the Dakotas into Minnesota from this afternoon into the overnight, with other isolated storms producing hail or wind over the northern High Plains. In the Northern Plains into the Upper Great Lakes and Mid-Atlantic, heavy to excessive rain may bring flash and urban flooding through Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Altoona - Blair County Airport (KAOO)

Lat: 40.3°NLon: 78.32°WElev: 1467ft.

Overcast

74°F

23°C

Humidity	85%
Wind Speed	NA
Barometer	30.06 in (1017.0 mb)
Dewpoint	69°F (21°C)
Visibility	10.00 mi
Last update	7 Jul 1:53 pm EDT

More Information:

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

Extended Forecast for

Waterfall PA

Flood Watch until July 8, 12:00am

Click here for hazard details and duration

Flood Watch

Flood Watch until July 8, 12:00am
NOW until 12:00am Wed
Flood Watch
This Afternoon
High: 79 °F
Showers
Likely
Tonight
Low: 66 °F
Showers
Likely and
Patchy Fog
Wednesday
High: 78 °F
Chance
Showers and
Areas Fog
then Slight
Chance
T-storms
Wednesday Night
Low: 65 °F
Chance
Showers and
Patchy Fog
Thursday
High: 85 °F
Showers
Likely and
Patchy Fog
then Showers
Thursday Night
Low: 65 °F
Showers then
Mostly Clear
Friday
High: 86 °F
Chance
Showers then
Showers
Likely
Friday Night
Low: 65 °F
Showers
Likely

Detailed Forecast

This Afternoon

Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 79. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and thunderstorms likely before 9pm, then a chance of showers. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 66. Calm wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday

A chance of showers before 3pm, then a slight chance of showers and thunderstorms between 3pm and 5pm, then a slight chance of showers after 5pm. Areas of fog before 10am. Otherwise, mostly cloudy, with a high near 78. Calm wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday Night

A slight chance of showers and thunderstorms, then a chance of showers after 3am. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 65. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday

Showers likely, then showers and possibly a thunderstorm after 11am. Patchy fog before 10am. High near 85. Light southwest wind. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday Night

Showers before 8pm. Low around 65. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

Friday

A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 70%.

Friday Night

Showers likely and possibly a thunderstorm before 8pm, then a chance of showers. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.

Saturday

A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 40%.

Saturday Night

A chance of thunderstorms before 8pm. Mostly cloudy, with a low around 61. Chance of precipitation is 30%.

Sunday

A chance of showers. Mostly sunny, with a high near 81. Chance of precipitation is 30%.