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

Flooding Threat Along the Gulf Coast, Southern Rockies and High Plains; Cooler Weather in the Central and Eastern U.S.

Strong thunderstorms may bring excessive rainfall and flooding over parts of the northern Gulf Coast today and over parts of the southern Rockies into the High Plains today through the weekend. A refreshingly cool and dry air mass will continue to produce below average temperatures across the central and eastern U.S. through the weekend. Read More >

Current conditions at

Cattaraugus County-Olean Airport (KOLE)

Lat: 42.24°NLon: 78.37°WElev: 2135ft.

Fair

43°F

6°C

Humidity 100%
Wind Speed Calm
Barometer 30.24 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 31 Aug 3:35 am EDT
Extended Forecast for

2 Miles SW Delevan NY

  • Overnight

    Overnight: Mostly clear, with a low around 42. Calm wind.

    Low: 42 °F

    Mostly Clear

  • Sunday

    Sunday: Patchy fog before 9am. Otherwise, sunny, with a high near 70. Calm wind.

    High: 70 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 47. Calm wind.

    Low: 47 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 72. Light and variable wind.

    High: 72 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 51. Calm wind.

    Low: 51 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 72. Calm wind.

    High: 72 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers. Mostly clear, with a low around 50. Light and variable wind. Chance of precipitation is 30%.

    Low: 50 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers before 2pm. Mostly sunny, with a high near 74. Southwest wind around 6 mph. Chance of precipitation is 30%.

    High: 74 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers after 2am. Mostly cloudy, with a low around 56. Chance of precipitation is 40%.

    Low: 56 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 42. Calm wind.
Sunday
Patchy fog before 9am. Otherwise, sunny, with a high near 70. Calm wind.
Sunday Night
Mostly clear, with a low around 47. Calm wind.
Labor Day
Sunny, with a high near 72. Light and variable wind.
Monday Night
Partly cloudy, with a low around 51. Calm wind.
Tuesday
Mostly sunny, with a high near 72. Calm wind.
Tuesday Night
A chance of showers. Mostly clear, with a low around 50. Light and variable wind. Chance of precipitation is 30%.
Wednesday
A chance of showers before 2pm. Mostly sunny, with a high near 74. Southwest wind around 6 mph. Chance of precipitation is 30%.
Wednesday Night
A chance of showers after 2am. Mostly cloudy, with a low around 56. Chance of precipitation is 40%.
Thursday
Showers likely, then showers and possibly a thunderstorm after 2pm. High near 69. Chance of precipitation is 80%.
Thursday Night
Showers and possibly a thunderstorm. Low around 49. Chance of precipitation is 80%.
Friday
A chance of showers. Partly sunny, with a high near 62. Chance of precipitation is 30%.
Friday Night
Mostly cloudy, with a low around 46.
Saturday
Mostly sunny, with a high near 63.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Delevan NY
 42.46°N 78.52°W (Elev. 1772 ft)
Last Update:
1:36 am EDT Aug 31, 2025
Forecast Valid:
3am EDT Aug 31, 2025-6pm EDT Sep 6, 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