Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Hazardous Weather Conditions

Current conditions at

Harrisburg, Capital City Airport (KCXY)

Lat: 40.22°NLon: 76.86°WElev: 335ft.

Fair

47°F

8°C

Humidity	61%
Wind Speed	Calm
Barometer	30.39 in (1029.3 mb)
Dewpoint	34°F (1°C)
Visibility	10.00 mi
Last update	12 Apr 12:56 am EDT

More Information:

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

Extended Forecast for

Duncannon PA

Frost Advisory April 12, 02:00am until April 12, 08:00am

Click here for hazard details and duration

Frost Advisory

Overnight
Low: 38 °F
Mostly Clear
Sunday
High: 64 °F
Mostly Sunny
Sunday Night
Low: 53 °F
Mostly Cloudy
Monday
High: 78 °F
Mostly Cloudy
then Chance
Showers
Monday Night
Low: 58 °F
Chance
Showers
Tuesday
High: 83 °F
Partly Sunny
then Slight
Chance
T-storms
Tuesday Night
Low: 61 °F
Mostly Cloudy
Wednesday
High: 88 °F
Partly Sunny
Wednesday Night
Low: 64 °F
Mostly Cloudy

Detailed Forecast

Overnight

Mostly clear, with a low around 38. Calm wind.

Sunday

Mostly sunny, with a high near 64. Light southeast wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

Sunday Night

Mostly cloudy, with a low around 53. South wind 6 to 8 mph, with gusts as high as 20 mph.

Monday

A chance of showers after 2pm. Mostly cloudy, with a high near 78. South wind 6 to 11 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.

Monday Night

A chance of showers, mainly before 8pm. Partly cloudy, with a low around 58. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 30%.

Tuesday

A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 83. Chance of precipitation is 20%.

Tuesday Night

Mostly cloudy, with a low around 61.

Wednesday

Partly sunny, with a high near 88.

Wednesday Night

Mostly cloudy, with a low around 64.

Thursday

Partly sunny, with a high near 85.

Thursday Night

A chance of showers. Mostly cloudy, with a low around 61. Chance of precipitation is 40%.