Dangerous Heat in the East; Critical Fire Weather in the Southwest

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Heat is likely to continue across the eastern U.S. through the Independence Day holiday weekend. Critical fire weather conditions will continue today and likely Tuesday across portions of the Four Corners and northern High Plains. Read More >

Hazardous Weather Conditions

Extreme Heat Watch in effect from July 1, 12:00 PM EDT until July 3, 08:00 PM EDT

Current conditions at

Williamsport - Lycoming County Airport (KIPT)

Lat: 41.24°NLon: 76.92°WElev: 522ft.

Fair

86°F

30°C

Humidity	42%
Wind Speed	S 5 mph
Barometer	30.09 in (1018.5 mb)
Dewpoint	60°F (16°C)
Visibility	10.00 mi
Heat Index	86°F (30°C)
Last update	29 Jun 1:54 pm EDT

More Information:

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

Extended Forecast for

Montoursville PA

Extreme Heat Watch July 1, 12:00pm until July 3, 08:00pm

Click here for hazard details and duration

Extreme Heat Watch

This Afternoon
High: 88 °F
Mostly Sunny
Tonight
Low: 66 °F
Partly Cloudy
Tuesday
High: 90 °F
Mostly Sunny
Tuesday Night
Low: 70 °F
Partly Cloudy
Wednesday
High: 96 °F
Slight Chance
T-storms
Wednesday Night
Low: 72 °F
Mostly Clear
Thursday
High: 99 °F
Hot
Thursday Night
Low: 74 °F
Mostly Clear
Friday
High: 100 °F
Hot

Detailed Forecast

This Afternoon

Mostly sunny, with a high near 88. Calm wind.

Tonight

Partly cloudy, with a low around 66. Calm wind.

Tuesday

Mostly sunny, with a high near 90. Calm wind becoming south 5 to 8 mph in the afternoon.

Tuesday Night

Partly cloudy, with a low around 70. South wind around 5 mph becoming calm in the evening.

Wednesday

A slight chance of showers, with thunderstorms also possible after 11am. Mostly sunny and hot, with a high near 96. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 20%.

Wednesday Night

Mostly clear, with a low around 72.

Thursday

Sunny and hot, with a high near 99.

Thursday Night

Mostly clear, with a low around 74.

Friday

Sunny and hot, with a high near 100.

Friday Night

A chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 72. Chance of precipitation is 30%.

Independence Day

A chance of showers and thunderstorms. Mostly sunny and hot, with a high near 95. Chance of precipitation is 40%.