Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Current conditions at

Dunkirk, Chautauqua County / Dunkirk Airport (KDKK)

Lat: 42.49°NLon: 79.28°WElev: 692ft.

Light Rain Fog/Mist

72°F

22°C

Humidity 94%
Wind Speed N 16 G 22 mph
Barometer 30.00 in (1015.5 mb)
Dewpoint 70°F (21°C)
Visibility 4.00 mi
Last update 17 Aug 5:53 pm EDT
Extended Forecast for

Portland NY

  • Tonight

    Tonight: A slight chance of showers before 7pm, then a slight chance of showers and thunderstorms between 7pm and 8pm.  Cloudy during the early evening, then gradual clearing, with a low around 57. East wind 6 to 15 mph, with gusts as high as 28 mph.  Chance of precipitation is 20%.

    Low: 57 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 76. Northeast wind around 13 mph.

    High: 76 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 60. Northeast wind 7 to 10 mph becoming southeast after midnight.

    Low: 60 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 80. South wind around 8 mph.

    High: 80 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 5am, then a chance of showers and thunderstorms after 5am.  Mostly cloudy, with a low around 65. South wind 6 to 9 mph.  Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm.  Partly sunny, with a high near 77. South wind around 9 mph becoming north in the afternoon.  Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 64. Northeast wind 7 to 9 mph.

    Low: 64 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 76. Northeast wind around 11 mph.

    High: 76 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of showers before 7pm, then a slight chance of showers and thunderstorms between 7pm and 8pm. Cloudy during the early evening, then gradual clearing, with a low around 57. East wind 6 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Monday
Sunny, with a high near 76. Northeast wind around 13 mph.
Monday Night
Mostly clear, with a low around 60. Northeast wind 7 to 10 mph becoming southeast after midnight.
Tuesday
Mostly sunny, with a high near 80. South wind around 8 mph.
Tuesday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 65. South wind 6 to 9 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 77. South wind around 9 mph becoming north in the afternoon. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Mostly cloudy, with a low around 64. Northeast wind 7 to 9 mph.
Thursday
Mostly sunny, with a high near 76. Northeast wind around 11 mph.
Thursday Night
Mostly clear, with a low around 61.
Friday
Sunny, with a high near 80.
Friday Night
Mostly clear, with a low around 65.
Saturday
Mostly sunny, with a high near 82.
Saturday Night
A chance of showers. Partly cloudy, with a low around 63. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
Portland NY
 42.37°N 79.49°W (Elev. 755 ft)
4:36 pm EDT Aug 17, 2025
6pm EDT Aug 17, 2025-6pm EDT Aug 24, 2025
 
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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