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Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Current conditions at

Cattaraugus County-Olean Airport (KOLE)

Lat: 42.24°NLon: 78.37°WElev: 2135ft.

Fair

N/A

Humidity NA
Wind Speed Calm
Barometer 30.16 in
Dewpoint N/A
Visibility 10.00 mi
Last update 18 Aug 3:55 am EDT
Extended Forecast for

Saint Bonaventure NY

  • Today

    Today: Sunny, with a high near 76. Northeast wind around 6 mph.

    High: 76 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 49. Calm wind.

    Low: 49 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 78. South wind 5 to 7 mph.

    High: 78 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms before 2am, then a chance of showers between 2am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 57. South wind 3 to 5 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 78. Light and variable wind becoming southwest around 6 mph in the morning. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: Partly sunny, with a high near 76. Calm wind becoming northeast 5 to 7 mph in the morning.

    High: 76 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 50. Northeast wind around 5 mph becoming calm in the evening.

    Low: 50 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 76. Northeast wind around 6 mph.
Tonight
Partly cloudy, with a low around 49. Calm wind.
Tuesday
Partly sunny, with a high near 78. South wind 5 to 7 mph.
Tuesday Night
A slight chance of showers and thunderstorms before 2am, then a chance of showers between 2am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 57. South wind 3 to 5 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 78. Light and variable wind becoming southwest around 6 mph in the morning. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Partly sunny, with a high near 76. Calm wind becoming northeast 5 to 7 mph in the morning.
Thursday Night
Mostly clear, with a low around 50. Northeast wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 83.
Friday Night
Mostly clear, with a low around 57.
Saturday
Mostly sunny, with a high near 83.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 57. Chance of precipitation is 30%.
Sunday
A chance of showers. Mostly sunny, with a high near 77. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Bonaventure NY
 42.09°N 78.47°W (Elev. 1490 ft)
Last Update:
1:36 am EDT Aug 18, 2025
Forecast Valid:
4am EDT Aug 18, 2025-6pm EDT Aug 24, 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