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

Air Quality Concerns; Fire Weather; Extreme Heat; Flash Flooding

Wildfire smoke continues to result in poor air quality from the Upper Midwest into the Northeast. Dangerous heat and fire weather concerns for portions of the Four Corners region into the central Great Basin. Heavy rainfall and flash flooding possible for the Southeast through Monday. For Hawaii, gusty trade winds a drier weather could result in any fires that start to spread rapidly. Read More >

Hazardous Weather Conditions

Current conditions at

Cattaraugus County-Olean Airport (KOLE)

Lat: 42.24°NLon: 78.37°WElev: 2135ft.

Fair

73°F

23°C

Humidity 47%
Wind Speed Calm
Barometer 30.21 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 3 Aug 3:55 pm EDT
Extended Forecast for

Olean NY

  • Tonight

    Tonight: Widespread haze before midnight. Patchy fog after 1am. Otherwise, mostly clear, with a low around 49. Light north wind.

    Low: 49 °F

    Haze then
    Patchy Fog

  • Monday

    Monday: Areas of fog before 9am. Otherwise, sunny, with a high near 84. Calm wind.

    High: 84 °F

    Areas Fog
    then Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 86. Calm wind.

    High: 86 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 58. Calm wind.

    Low: 58 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 84. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 84 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 57. Calm wind.

    Low: 57 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 82. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 82 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

Detailed Forecast

Tonight
Widespread haze before midnight. Patchy fog after 1am. Otherwise, mostly clear, with a low around 49. Light north wind.
Monday
Areas of fog before 9am. Otherwise, sunny, with a high near 84. Calm wind.
Monday Night
Partly cloudy, with a low around 56. Calm wind.
Tuesday
Mostly sunny, with a high near 86. Calm wind.
Tuesday Night
Partly cloudy, with a low around 58. Calm wind.
Wednesday
Partly sunny, with a high near 84. Calm wind becoming southeast around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 57. Calm wind.
Thursday
Mostly sunny, with a high near 82. Calm wind becoming southeast around 6 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 58.
Friday
Sunny, with a high near 83.
Friday Night
Mostly clear, with a low around 58.
Saturday
Mostly sunny, with a high near 86.
Saturday Night
Mostly clear, with a low around 60.
Sunday
Mostly sunny, with a high near 89.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Olean NY
 42.08°N 78.44°W (Elev. 1453 ft)
Last Update:
1:36 pm EDT Aug 3, 2025
Forecast Valid:
4pm EDT Aug 3, 2025-6pm EDT Aug 10, 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