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

Dunkirk, Chautauqua County / Dunkirk Airport (KDKK)

Lat: 42.49°NLon: 79.28°WElev: 692ft.

Fog/Mist

67°F

19°C

Humidity 100%
Wind Speed Calm
Barometer 30.22 in (1023.1 mb)
Dewpoint 67°F (19°C)
Visibility 4.00 mi
Last update 17 Sep 5:53 am EDT
Extended Forecast for

Portland NY

  • Today

    Today: Showers likely and possibly a thunderstorm before 11am, then a slight chance of showers between 11am and 2pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 75. Calm wind becoming northeast around 6 mph in the morning. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Showers
    Likely and
    Patchy Fog
    then Slight
    Chance
    Showers

  • Tonight

    Tonight: Mostly cloudy, with a low around 60. Calm wind becoming northeast 5 to 7 mph after midnight.

    Low: 60 °F

    Mostly Cloudy

  • Friday

    Friday: Sunny, with a high near 71. North wind 7 to 9 mph.

    High: 71 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 53. Northeast wind 6 to 8 mph.

    Low: 53 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of showers after 2pm. Mostly cloudy, with a high near 70. East wind around 7 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 70 °F

    Partly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Showers, with thunderstorms also possible after 11pm. Low around 58. Southeast wind around 8 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 58 °F

    Showers

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before 8am, then showers likely between 8am and 2pm. Cloudy, with a high near 69. North wind 9 to 14 mph. Chance of precipitation is 60%.

    High: 69 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 53. Northeast wind 11 to 13 mph.

    Low: 53 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 66.

    High: 66 °F

    Partly Sunny

Detailed Forecast

Today
Showers likely and possibly a thunderstorm before 11am, then a slight chance of showers between 11am and 2pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 75. Calm wind becoming northeast around 6 mph in the morning. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Mostly cloudy, with a low around 60. Calm wind becoming northeast 5 to 7 mph after midnight.
Friday
Sunny, with a high near 71. North wind 7 to 9 mph.
Friday Night
Mostly cloudy, with a low around 53. Northeast wind 6 to 8 mph.
Saturday
A chance of showers after 2pm. Mostly cloudy, with a high near 70. East wind around 7 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Showers, with thunderstorms also possible after 11pm. Low around 58. Southeast wind around 8 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday
Showers likely and possibly a thunderstorm before 8am, then showers likely between 8am and 2pm. Cloudy, with a high near 69. North wind 9 to 14 mph. Chance of precipitation is 60%.
Sunday Night
Mostly cloudy, with a low around 53. Northeast wind 11 to 13 mph.
Monday
Partly sunny, with a high near 66.
Monday Night
A chance of showers after 2am. Mostly cloudy, with a low around 52. Chance of precipitation is 40%.
Tuesday
A chance of showers. Partly sunny, with a high near 68. Chance of precipitation is 30%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 54. Chance of precipitation is 40%.
Wednesday
A chance of showers. Partly sunny, with a high near 70. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Portland NY
 42.37°N 79.49°W (Elev. 755 ft)
Last Update:
3:57 am EDT Sep 17, 2026
Forecast Valid:
6am EDT Sep 17, 2026-6pm EDT Sep 23, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation