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

Cattaraugus County-Olean Airport (KOLE)

Lat: 42.24°NLon: 78.37°WElev: 2135ft.

Fog

64°F

18°C

Humidity 100%
Wind Speed NA
Barometer 30.31 in
Dewpoint 64°F (18°C)
Visibility 0.25 mi
Last update 17 Sep 2:35 am EDT
Extended Forecast for

Allegany NY

  • Overnight

    Overnight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Patchy fog. Otherwise, mostly cloudy, with a low around 64. Light east wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Showers
    Likely and
    Patchy Fog

  • Thursday

    Thursday: Showers and thunderstorms before 11am, then a chance of showers between 11am and 2pm, then a chance of showers and thunderstorms after 2pm. Patchy fog before 10am. High near 78. Light and variable wind. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Showers and
    Patchy Fog
    then Chance
    Showers

  • Thursday Night

    Thursday Night: Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 53. Calm wind.

    Low: 53 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 73. Calm wind becoming north around 6 mph in the afternoon.

    High: 73 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 45. Light and variable wind.

    Low: 45 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of showers after 2pm. Mostly cloudy, with a high near 70. Light southeast wind. Chance of precipitation is 20%.

    High: 70 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm, mainly after 2am. Low around 55. Southeast wind 3 to 5 mph. Chance of precipitation is 90%.

    Low: 55 °F

    Showers

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm. Cloudy, with a high near 69. Light and variable wind becoming west around 5 mph in the morning. Chance of precipitation is 70%.

    High: 69 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers before 8pm. Mostly cloudy, with a low around 47. Chance of precipitation is 30%.

    Low: 47 °F

    Chance
    Showers then
    Mostly Cloudy

Detailed Forecast

Overnight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Patchy fog. Otherwise, mostly cloudy, with a low around 64. Light east wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers and thunderstorms before 11am, then a chance of showers between 11am and 2pm, then a chance of showers and thunderstorms after 2pm. Patchy fog before 10am. High near 78. Light and variable wind. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 53. Calm wind.
Friday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 73. Calm wind becoming north around 6 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 45. Light and variable wind.
Saturday
A slight chance of showers after 2pm. Mostly cloudy, with a high near 70. Light southeast wind. Chance of precipitation is 20%.
Saturday Night
Showers and possibly a thunderstorm, mainly after 2am. Low around 55. Southeast wind 3 to 5 mph. Chance of precipitation is 90%.
Sunday
Showers likely and possibly a thunderstorm. Cloudy, with a high near 69. Light and variable wind becoming west around 5 mph in the morning. Chance of precipitation is 70%.
Sunday Night
A chance of showers before 8pm. Mostly cloudy, with a low around 47. Chance of precipitation is 30%.
Monday
Mostly cloudy, with a high near 66.
Monday Night
A chance of showers. Mostly cloudy, with a low around 47. Chance of precipitation is 40%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 66. Chance of precipitation is 40%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 47. Chance of precipitation is 40%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 67. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Allegany NY
 42.09°N 78.5°W (Elev. 1404 ft)
Last Update:
2:22 am EDT Sep 17, 2026
Forecast Valid:
2am EDT Sep 17, 2026-6pm EDT Sep 23, 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