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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Current conditions at

Cattaraugus County-Olean Airport (KOLE)

Lat: 42.24°NLon: 78.37°WElev: 2135ft.

Fair

57°F

14°C

Humidity 100%
Wind Speed Calm
Barometer 30.07 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 28 Aug 12:35 am EDT
Extended Forecast for

Allegany NY

  • Overnight

    Overnight: Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Patchy Fog

  • Friday

    Friday: A slight chance of showers before 11am. Patchy fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 75. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 75 °F

    Slight Chance
    Showers and
    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 49. Calm wind.

    Low: 49 °F

    Mostly Clear

  • Saturday

    Saturday: Partly sunny, then gradually becoming sunny, with a high near 78. Light and variable wind.

    High: 78 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 54. Calm wind.

    Low: 54 °F

    Mostly Clear

  • Sunday

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

    High: 82 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A chance of showers after 2am. Mostly cloudy, with a low around 62. Calm wind. Chance of precipitation is 30%.

    Low: 62 °F

    Mostly Cloudy
    then Chance
    Showers

  • Monday

    Monday: A chance of showers before 2pm. Mostly cloudy, with a high near 82. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 30%.

    High: 82 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers after 8pm. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    Showers

Detailed Forecast

Overnight
Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 56. Calm wind.
Friday
A slight chance of showers before 11am. Patchy fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 75. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 49. Calm wind.
Saturday
Partly sunny, then gradually becoming sunny, with a high near 78. Light and variable wind.
Saturday Night
Mostly clear, with a low around 54. Calm wind.
Sunday
Mostly sunny, with a high near 82. Calm wind becoming west around 6 mph in the afternoon.
Sunday Night
A chance of showers after 2am. Mostly cloudy, with a low around 62. Calm wind. Chance of precipitation is 30%.
Monday
A chance of showers before 2pm. Mostly cloudy, with a high near 82. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 30%.
Monday Night
A chance of showers after 8pm. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 85. Chance of precipitation is 30%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 65. Chance of precipitation is 50%.
Wednesday
A chance of showers. Partly sunny, with a high near 83. Chance of precipitation is 40%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.
Thursday
A chance of showers. Partly sunny, with a high near 80. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Allegany NY
 42.09°N 78.5°W (Elev. 1404 ft)
Last Update:
10:40 pm EDT Aug 27, 2026
Forecast Valid:
12am EDT Aug 28, 2026-6pm EDT Sep 3, 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