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

Hazardous Weather Conditions

Current conditions at

Ithaca Tompkins International Airport (KITH)

Lat: 42.49°NLon: 76.46°WElev: 1099ft.

Mostly Cloudy

67°F

19°C

Humidity 81%
Wind Speed S 7 mph
Barometer 29.82 in (1009.1 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 23 Aug 9:56 am EDT
Extended Forecast for

Portland NY

  • Today

    Today: Scattered showers and thunderstorms. Partly sunny, with a high near 75. West wind 8 to 11 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Scattered
    Showers then
    Scattered
    T-storms

  • Tonight

    Tonight: Scattered showers and thunderstorms. Partly cloudy, with a low around 54. West wind 5 to 7 mph becoming light and variable after midnight. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 54 °F

    Scattered
    T-storms then
    Scattered
    Showers

  • Monday

    Monday: Scattered showers, then showers likely and possibly a thunderstorm after 2pm. Increasing clouds, with a high near 69. Southwest wind 6 to 10 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 69 °F

    Scattered
    Showers then
    Showers
    Likely

  • Monday Night

    Monday Night: Showers likely, mainly before 8pm. Mostly cloudy, with a low around 55. Southwest wind around 8 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 55 °F

    Showers
    Likely then
    Scattered
    Showers

  • Tuesday

    Tuesday: Scattered showers, mainly between 8am and 2pm. Partly sunny, with a high near 73. Northwest wind 8 to 10 mph. Chance of precipitation is 40%.

    High: 73 °F

    Scattered
    Showers

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 50%.

    High: 82 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
Scattered showers and thunderstorms. Partly sunny, with a high near 75. West wind 8 to 11 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Scattered showers and thunderstorms. Partly cloudy, with a low around 54. West wind 5 to 7 mph becoming light and variable after midnight. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Scattered showers, then showers likely and possibly a thunderstorm after 2pm. Increasing clouds, with a high near 69. Southwest wind 6 to 10 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 55. Southwest wind around 8 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Scattered showers, mainly between 8am and 2pm. Partly sunny, with a high near 73. Northwest wind 8 to 10 mph. Chance of precipitation is 40%.
Tuesday Night
Mostly clear, with a low around 54.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Partly cloudy, with a low around 60.
Thursday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 50%.
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 62. Chance of precipitation is 50%.
Friday
Showers likely. Partly sunny, with a high near 79. Chance of precipitation is 60%.
Friday Night
Showers likely. Partly cloudy, with a low around 58. Chance of precipitation is 60%.
Saturday
Mostly sunny, with a high near 75.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Portland NY
 42.53°N 76.52°W (Elev. 699 ft)
Last Update:
2:30 am EDT Aug 23, 2026
Forecast Valid:
10am EDT Aug 23, 2026-6pm EDT Aug 29, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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