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

Ithaca Tompkins International Airport (KITH)

Lat: 42.49°NLon: 76.46°WElev: 1099ft.

Fair

54°F

12°C

Humidity 51%
Wind Speed Calm
Barometer 30.21 in (1023.6 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 2 Nov 3:56 pm EST
Extended Forecast for

Portland NY

  • This Afternoon

    This Afternoon: Sunny, with a high near 54. Light southeast wind.

    High: 54 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 43. Southeast wind 5 to 9 mph.

    Low: 43 °F

    Mostly Clear

  • Monday

    Monday: A chance of showers, mainly between 1pm and 5pm. Increasing clouds, with a high near 57. Southeast wind 10 to 14 mph becoming west in the afternoon. Chance of precipitation is 40%.

    High: 57 °F

    Sunny then
    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers, mainly between 7pm and 1am. Partly cloudy, with a low around 43. West wind around 14 mph. Chance of precipitation is 30%.

    Low: 43 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Sunny, with a high near 53. West wind 13 to 16 mph.

    High: 53 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers after 1pm. Mostly cloudy, with a high near 56. Chance of precipitation is 50%.

    High: 56 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, mainly before 1am. Mostly cloudy, with a low around 40. Chance of precipitation is 70%.

    Low: 40 °F

    Showers
    Likely

  • Thursday

    Thursday: Mostly sunny, with a high near 47.

    High: 47 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 54. Light southeast wind.
Tonight
Mostly clear, with a low around 43. Southeast wind 5 to 9 mph.
Monday
A chance of showers, mainly between 1pm and 5pm. Increasing clouds, with a high near 57. Southeast wind 10 to 14 mph becoming west in the afternoon. Chance of precipitation is 40%.
Monday Night
A chance of showers, mainly between 7pm and 1am. Partly cloudy, with a low around 43. West wind around 14 mph. Chance of precipitation is 30%.
Tuesday
Sunny, with a high near 53. West wind 13 to 16 mph.
Tuesday Night
Partly cloudy, with a low around 41.
Wednesday
A chance of showers after 1pm. Mostly cloudy, with a high near 56. Chance of precipitation is 50%.
Wednesday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 40. Chance of precipitation is 70%.
Thursday
Mostly sunny, with a high near 47.
Thursday Night
Mostly cloudy, with a low around 35.
Friday
A chance of showers. Mostly cloudy, with a high near 53. Chance of precipitation is 40%.
Friday Night
Showers. Low around 46. Chance of precipitation is 80%.
Saturday
A chance of showers. Partly sunny, with a high near 52. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Portland NY
 42.51°N 76.52°W (Elev. 384 ft)
Last Update:
3:22 pm EST Nov 2, 2025
Forecast Valid:
4pm EST Nov 2, 2025-6pm EST Nov 8, 2025
 
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