National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Critical Fire Weather in the Plains; Severe Thunderstorms in the Upper Mississippi Valley and Great Lakes

Anomalously warm, dry and breezy conditions will bring elevated to critical fire weather conditions across portions of the Intermountain West into the central and southern Plains today. Strong to severe thunderstorms are possible across portions of the upper Mississippi River Valley to the Great Lakes tonight through the day Tuesday. Damaging gusts, hail, and heavy rainfall are likely. Read More >

Current conditions at

Williamsport - Lycoming County Airport (KIPT)

Lat: 41.24°NLon: 76.92°WElev: 522ft.

Overcast

69°F

21°C

Humidity 42%
Wind Speed SW 13 mph
Barometer 30.02 in (1016.4 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 30 Mar 7:54 pm EDT
Extended Forecast for

Montoursville PA

  • Tonight

    Tonight: A chance of showers before 11pm, then showers likely and possibly a thunderstorm between 11pm and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 53. South wind 3 to 5 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 53 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers before noon, then a chance of showers after 2pm. Mostly cloudy, with a high near 73. Southwest wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 73 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 61. Southwest wind around 8 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 65. Southwest wind around 8 mph becoming northwest in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 65 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 2am, then showers likely. Low around 47. North wind 3 to 7 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 47 °F

    Showers

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 65. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 65 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 51. Chance of precipitation is 30%.

    Low: 51 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: A chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 73. Chance of precipitation is 40%.

    High: 73 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 56. Chance of precipitation is 40%.

    Low: 56 °F

    Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Tonight
A chance of showers before 11pm, then showers likely and possibly a thunderstorm between 11pm and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 53. South wind 3 to 5 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of showers before noon, then a chance of showers after 2pm. Mostly cloudy, with a high near 73. Southwest wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 61. Southwest wind around 8 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers and possibly a thunderstorm. High near 65. Southwest wind around 8 mph becoming northwest in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and possibly a thunderstorm before 2am, then showers likely. Low around 47. North wind 3 to 7 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 65. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 51. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 73. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 56. Chance of precipitation is 40%.
Saturday
A chance of showers after 2pm. Mostly cloudy, with a high near 75. Chance of precipitation is 50%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 50%.
Sunday
Showers likely. Mostly cloudy, with a high near 68. Chance of precipitation is 60%.
Sunday Night
Showers likely. Mostly cloudy, with a low around 39. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 56.
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ABOUT THIS FORECAST

 
Point Forecast:
Montoursville PA
 41.26°N 76.93°W (Elev. 531 ft)
Last Update:
2:21 pm EDT Mar 30, 2026
Forecast Valid:
8pm EDT Mar 30, 2026-6pm EDT Apr 6, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation