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

Extreme Heat Across the Southern U.S.; Severe Thunderstorms and Heavy Rain in the Plains and Mississippi Valley

A heat wave over the Southwest will intensify late week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Severe thunderstorms and heavy rain are expected over portions of the Plains and Mississippi Valley tonight, which will shift to parts of the Upper Midwest and mid-Mississippi Valley Friday. Monsoonal showers and flooding persist in the Desert Southwest. Read More >

Hazardous Weather Conditions

Current conditions at

Wellsville, Wellsville Municipal Airport (KELZ)

Lat: 42.11°NLon: 77.98°WElev: 2123ft.

Fair

60°F

16°C

Humidity 96%
Wind Speed W 5 mph
Barometer 30.06 in (1017.3 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 30 Jul 10:56 pm EDT
Extended Forecast for

Bolivar NY

  • Tonight

    Tonight: Mostly clear, with a low around 50. Calm wind.

    Low: 50 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 79. Light and variable wind.

    High: 79 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 58. Calm wind.

    Low: 58 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 80. Calm wind becoming south around 5 mph in the afternoon.

    High: 80 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A slight chance of showers before 11pm, then a slight chance of showers and thunderstorms between 11pm and 2am, then showers likely and possibly a thunderstorm after 2am. Cloudy, with a low around 61. Calm wind becoming south around 6 mph after midnight. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Sunday

    Sunday: Showers and possibly a thunderstorm. High near 72. South wind around 7 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 72 °F

    Showers

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Mostly cloudy, with a low around 59. South wind 3 to 6 mph. Chance of precipitation is 60%.

    Low: 59 °F

    Showers
    Likely

  • Monday

    Monday: A chance of showers before 8am, then a chance of showers after 2pm. Partly sunny, with a high near 74. North wind around 6 mph. Chance of precipitation is 40%.

    High: 74 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers before 8pm. Partly cloudy, with a low around 54. Chance of precipitation is 30%.

    Low: 54 °F

    Chance
    Showers then
    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 50. Calm wind.
Friday
Sunny, with a high near 79. Light and variable wind.
Friday Night
Partly cloudy, with a low around 58. Calm wind.
Saturday
Mostly cloudy, with a high near 80. Calm wind becoming south around 5 mph in the afternoon.
Saturday Night
A slight chance of showers before 11pm, then a slight chance of showers and thunderstorms between 11pm and 2am, then showers likely and possibly a thunderstorm after 2am. Cloudy, with a low around 61. Calm wind becoming south around 6 mph after midnight. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers and possibly a thunderstorm. High near 72. South wind around 7 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday Night
Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Mostly cloudy, with a low around 59. South wind 3 to 6 mph. Chance of precipitation is 60%.
Monday
A chance of showers before 8am, then a chance of showers after 2pm. Partly sunny, with a high near 74. North wind around 6 mph. Chance of precipitation is 40%.
Monday Night
A chance of showers before 8pm. Partly cloudy, with a low around 54. Chance of precipitation is 30%.
Tuesday
A chance of showers after 2pm. Mostly sunny, with a high near 77. Chance of precipitation is 30%.
Tuesday Night
A chance of showers. Partly cloudy, with a low around 59. Chance of precipitation is 30%.
Wednesday
A chance of showers. Partly sunny, with a high near 79. Chance of precipitation is 50%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms. 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:
Bolivar NY
 42.06°N 78.15°W (Elev. 1877 ft)
Last Update:
9:58 pm EDT Jul 30, 2026
Forecast Valid:
11pm EDT Jul 30, 2026-6pm EDT Aug 6, 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