Severe Thunderstorms and Heavy Rainfall for the Southwest; Heat Spreads Across the Center of the Nation

Moisture will continue to move into areas of the West. This will increase showers and thunderstorms coverage and intensity, with the risk of flash flooding and damaging wind gusts. Meanwhile, heat across the Southwest will expand into the center of the nation this weekend into early next week. Trends favor this heat will spread across the Ohio Valley, mid-Atlantic next week. Read More >

Current conditions at

Cattaraugus County-Olean Airport (KOLE)

Lat: 42.24°NLon: 78.37°WElev: 2135ft.

Overcast

64°F

18°C

Humidity	83%
Wind Speed	Calm
Barometer	30.20 in
Dewpoint	59°F (15°C)
Visibility	10.00 mi
Last update	30 Aug 11:35 am EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Great Valley NY

Today
High: 75 °F
Chance
Showers
Tonight
Low: 61 °F
Showers and
Patchy Fog
Monday
High: 79 °F
Showers
Likely and
Patchy Fog
Monday Night
Low: 65 °F
Chance
Showers
Tuesday
High: 83 °F
Chance
Showers
Tuesday Night
Low: 65 °F
Chance
Showers then
Chance
T-storms
Wednesday
High: 84 °F
Chance
T-storms then
Showers
Likely
Wednesday Night
Low: 64 °F
Showers
Likely
Thursday
High: 78 °F
Showers
Likely

Detailed Forecast

Today

A slight chance of showers between noon and 2pm, then a chance of showers and thunderstorms after 2pm. Cloudy, with a high near 75. West wind 6 to 8 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and possibly a thunderstorm. Patchy fog after 2am. Low around 61. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Monday

Showers likely, with thunderstorms also possible after 2pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 79. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Monday Night

A chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 65. Light southwest wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday

A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. West wind 5 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

Tuesday Night

A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 65. Calm wind. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 84. Calm wind becoming west 5 to 7 mph in the morning. Chance of precipitation is 60%.

Wednesday Night

Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. Light southwest wind. Chance of precipitation is 70%.

Thursday

Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 78. Chance of precipitation is 60%.

Thursday Night

A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 59. Chance of precipitation is 30%.

Friday

Mostly sunny, with a high near 75.

Friday Night

Partly cloudy, with a low around 55.

Saturday

Mostly sunny, with a high near 73.