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Severe Weather of July 18th, 2026

Hazardous Weather Conditions

Current conditions at

Altoona - Blair County Airport (KAOO)

Lat: 40.3°NLon: 78.32°WElev: 1467ft.

Partly Cloudy

75°F

24°C

Humidity	84%
Wind Speed	S 3 mph
Barometer	29.75 in (1006.4 mb)
Dewpoint	70°F (21°C)
Visibility	10.00 mi
Last update	2 Aug 6:53 pm EDT

More Information:

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

Extended Forecast for

3 Miles WSW Altoona-Blair County Airport PA

Flood Watch August 2, 07:29pm until August 3, 02:00am

Click here for hazard details and duration

Flood Watch

Flood Watch August 2, 07:29pm until August 3, 02:00am
NOW until 2:00am Mon
Flood Watch
Tonight
Low: 66 °F
Heavy Rain
then Chance
T-storms
Monday
High: 78 °F
Partly Sunny
Monday Night
Low: 61 °F
Mostly Cloudy
Tuesday
High: 79 °F
Partly Sunny
Tuesday Night
Low: 60 °F
Partly Cloudy
Wednesday
High: 81 °F
Partly Sunny
then Chance
Showers
Wednesday Night
Low: 65 °F
Chance
Showers then
Partly Cloudy
Thursday
High: 82 °F
Chance
T-storms then
Showers
Likely

Detailed Forecast

Tonight

Showers and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms between midnight and 2am, then a slight chance of showers after 2am. Some of the storms could produce heavy rainfall. Low around 66. Southeast wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

Monday

Partly sunny, with a high near 78. Calm wind becoming northwest 5 to 8 mph in the morning.

Monday Night

Mostly cloudy, with a low around 61. North wind 3 to 5 mph.

Tuesday

Partly sunny, with a high near 79. Calm wind becoming southeast around 5 mph in the afternoon.

Tuesday Night

Partly cloudy, with a low around 60. Light southeast wind.

Wednesday

A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 81. 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 chance of showers before 8pm. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.

Thursday

A chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 70%.

Thursday Night

Showers likely before 8pm. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.

Friday

Showers likely and possibly a thunderstorm, mainly after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 70%.

Friday Night

Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.

Saturday

Showers likely and possibly a thunderstorm. Partly sunny, with a high near 82. Chance of precipitation is 60%.

Saturday Night

Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.

Sunday

A chance of showers and thunderstorms. Mostly sunny, with a high near 83. Chance of precipitation is 30%.