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

Heavy Rainfall and Severe Thunderstorm Threats for the Plains and Southeast

A frontal boundary extending from the western High Plains to the Southeast will focus additional showers and thunderstorms this weekend. Some of these storms may become severe, alongside frequent lightning, and isolated instances of flash flooding. Meanwhile dry conditions will continue for the Great Basin where fire weather concerns linger. For the mid-Atlantic and Northeast, seasonable weather. Read More >

Hazardous Weather Conditions

Current conditions at

Cattaraugus County-Olean Airport (KOLE)

Lat: 42.24°NLon: 78.37°WElev: 2135ft.

Partly Cloudy

68°F

20°C

Humidity 46%
Wind Speed Calm
Barometer 30.29 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 2 Aug 5:55 pm EDT
Extended Forecast for

Olean NY

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, increasing clouds, with a low around 46. Calm wind.

    Low: 46 °F

    Mostly Clear
    then Patchy
    Fog

  • Sunday

    Sunday: Areas of fog before 8am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 82. Calm wind.

    High: 82 °F

    Areas Fog
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 52. Calm wind.

    Low: 52 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 85. Light and variable wind.

    High: 85 °F

    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. Light southeast 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 58.

    Low: 58 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after 3am. Otherwise, increasing clouds, with a low around 46. Calm wind.
Sunday
Areas of fog before 8am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 82. Calm wind.
Sunday Night
Mostly clear, with a low around 52. Calm wind.
Monday
Sunny, with a high near 85. Light and variable wind.
Monday Night
Partly cloudy, with a low around 56. Calm wind.
Tuesday
Mostly sunny, with a high near 86. Light southeast 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 58.
Thursday
Mostly sunny, with a high near 83.
Thursday Night
Partly cloudy, with a low around 58.
Friday
Sunny, with a high near 85.
Friday Night
Partly cloudy, with a low around 59.
Saturday
Mostly sunny, with a high near 88.
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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:
4:36 pm EDT Aug 2, 2025
Forecast Valid:
6pm EDT Aug 2, 2025-6pm EDT Aug 9, 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