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.

Fair

52°F

11°C

Humidity 100%
Wind Speed Calm
Barometer 30.27 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 3 Aug 6:15 am EDT
Extended Forecast for

Olean NY

  • Today

    Today: Widespread haze. Areas of fog before 9am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 81. Calm wind.

    High: 81 °F

    Areas Fog
    then Haze

  • Tonight

    Tonight: Widespread haze before midnight. Patchy fog after 1am. Otherwise, increasing clouds, with a low around 50. Calm wind.

    Low: 50 °F

    Haze then
    Patchy Fog

  • Monday

    Monday: Areas of fog before 8am. Otherwise, mostly cloudy through mid morning, then gradual clearing, 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: Mostly cloudy, with a low around 59. Calm wind.

    Low: 59 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 83. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 83 °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 81.

    High: 81 °F

    Mostly Sunny

Detailed Forecast

Today
Widespread haze. Areas of fog before 9am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 81. Calm wind.
Tonight
Widespread haze before midnight. Patchy fog after 1am. Otherwise, increasing clouds, with a low around 50. Calm wind.
Monday
Areas of fog before 8am. Otherwise, mostly cloudy through mid morning, then gradual clearing, 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
Mostly cloudy, with a low around 59. Calm wind.
Wednesday
Partly sunny, with a high near 83. 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 81.
Thursday Night
Partly cloudy, with a low around 57.
Friday
Mostly sunny, with a high near 83.
Friday Night
Mostly clear, with a low around 57.
Saturday
Sunny, with a high near 86.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Olean NY
 42.08°N 78.44°W (Elev. 1453 ft)
Last Update:
5:11 am EDT Aug 3, 2025
Forecast Valid:
6am EDT Aug 3, 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