Severe Thunderstorms for the Center of the Nation; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

A round of severe thunderstorms are forecast across areas of the Southern Plains, Mississippi Valley and Great Lakes this afternoon and tonight; The threat for flash flooding will also accompany these storms. The rainfall for the Great Lakes region could prolong the ongoing flooding. Where the rain is needed, the Southern High Plains, critical fire weather concerns through today. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Altoona - Blair County Airport (KAOO)

Lat: 40.3°NLon: 78.32°WElev: 1467ft.

Fair

50°F

10°C

Humidity	89%
Wind Speed	NW 3 mph
Barometer	29.98 in (1014.8 mb)
Dewpoint	47°F (8°C)
Visibility	10.00 mi
Last update	18 Apr 4:53 am EDT

More Information:

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

Extended Forecast for

4 Miles WNW Williamsburg PA

Today
High: 83 °F
Sunny then
Chance
Showers
Tonight
Low: 42 °F
Showers
Sunday
High: 54 °F
Showers
Likely
Sunday Night
Low: 34 °F
Chance
Showers
Monday
High: 47 °F
Slight Chance
Snow Showers
Monday Night
Low: 27 °F
Mostly Clear
then Frost
Tuesday
High: 63 °F
Sunny
Tuesday Night
Low: 45 °F
Chance
Showers
Wednesday
High: 69 °F
Mostly Sunny

Detailed Forecast

Today

A chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 83. Light southeast wind becoming south 8 to 13 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and thunderstorms. Low around 42. Southwest wind 6 to 9 mph becoming northwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Sunday

Showers likely, mainly before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 54. Northwest wind 11 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Sunday Night

A chance of showers after 8pm. Mostly cloudy, with a low around 34. West wind around 7 mph. Chance of precipitation is 30%.

Monday

A slight chance of snow showers before 2pm. Mostly sunny, with a high near 47. Northwest wind 8 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

Monday Night

Widespread frost after 5am. Otherwise, mostly clear, with a low around 27.

Tuesday

Sunny, with a high near 63.

Tuesday Night

A chance of showers. Partly cloudy, with a low around 45. Chance of precipitation is 30%.

Wednesday

Mostly sunny, with a high near 69.

Wednesday Night

Mostly clear, with a low around 44.

Thursday

Sunny, with a high near 76.