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

Cattaraugus County-Olean Airport (KOLE)

Lat: 42.24°NLon: 78.37°WElev: 2135ft.

Overcast

54°F

12°C

Humidity 63%
Wind Speed S 12 G 17 mph
Barometer 30.31 in
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 11 Oct 2:35 am EDT
Extended Forecast for

Portville NY

  • Overnight

    Overnight: A slight chance of rain. Mostly cloudy, with a low around 50. Southeast wind around 5 mph. Chance of precipitation is 20%.

    Low: 50 °F

    Slight Chance
    Rain

  • Sunday

    Sunday: Rain. High near 60. Southeast wind around 9 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 60 °F

    Rain

  • Sunday Night

    Sunday Night: Rain likely, mainly before 10pm. Mostly cloudy, with a low around 50. Light and variable wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 50 °F

    Rain Likely
    then Mostly
    Cloudy

  • Columbus Day

    Columbus Day: Mostly cloudy, with a high near 69. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 69 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 54. Light southwest wind.

    Low: 54 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 76. Southwest wind 6 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    High: 76 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers between 8pm and 2am. Mostly cloudy, with a low around 56. Southwest wind 5 to 8 mph. Chance of precipitation is 40%.

    Low: 56 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 66. Northwest wind 5 to 7 mph.

    High: 66 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A slight chance of rain. Mostly cloudy, with a low around 50. Southeast wind around 5 mph. Chance of precipitation is 20%.
Sunday
Rain. High near 60. Southeast wind around 9 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 50. Light and variable wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Columbus Day
Mostly cloudy, with a high near 69. Calm wind becoming northwest around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 54. Light southwest wind.
Tuesday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 76. Southwest wind 6 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Tuesday Night
A chance of showers between 8pm and 2am. Mostly cloudy, with a low around 56. Southwest wind 5 to 8 mph. Chance of precipitation is 40%.
Wednesday
Mostly cloudy, with a high near 66. Northwest wind 5 to 7 mph.
Wednesday Night
Mostly cloudy, with a low around 42.
Thursday
Partly sunny, with a high near 63.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 42. Chance of precipitation is 50%.
Friday
Showers likely. Mostly cloudy, with a high near 62. Chance of precipitation is 70%.
Friday Night
Showers likely. Mostly cloudy, with a low around 34. Chance of precipitation is 60%.
Saturday
A chance of rain and snow showers. Mostly cloudy, with a high near 50. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portville NY
 42.03°N 78.33°W (Elev. 1601 ft)
Last Update:
2:22 am EDT Oct 11, 2026
Forecast Valid:
2am EDT Oct 11, 2026-6pm EDT Oct 17, 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