Hazardous Spring Weather Shifts to the Eastern and Northwest U.S. Wednesday

Isolated to scattered severe thunderstorms are expected Wednesday from the ArkLaTex and Lower Mississippi Valley northeastward through the Ohio Valley and Mid-Atlantic. Thunderstorms may produce heavy to excessive rain that could pose a flooding threat from east Texas into Upstate New York. A moderate atmospheric river will bring heavy snow and high winds to the Northwest U.S. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Cattaraugus County-Olean Airport (KOLE)

Lat: 42.24°NLon: 78.37°WElev: 2135ft.

Fog/Mist

N/A

Humidity	NA
Wind Speed	Calm
Barometer	29.95 in
Dewpoint	N/A
Visibility	1.00 mi
Last update	11 Mar 12:35 am EDT

More Information:

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

Extended Forecast for

Portville NY

Overnight
Low: 56 °F
Mostly Cloudy
Wednesday
High: 69 °F
Showers
Wednesday Night
Low: 27 °F
Showers then
Rain/Snow
Thursday
High: 36 °F
Chance Snow
Showers
Thursday Night
Low: 24 °F
Partly Cloudy
Friday
High: 44 °F
Snow Likely
then
Rain/Snow
Friday Night
Low: 24 °F
Snow then
Chance Snow
Showers
Saturday
High: 38 °F
Partly Sunny
Saturday Night
Low: 26 °F
Chance Snow
Showers

Detailed Forecast

Overnight

Mostly cloudy, with a low around 56. Light south wind.

Wednesday

Showers and thunderstorms before 11am, then showers and possibly a thunderstorm, mainly after 11am. High near 69. South wind 8 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

Wednesday Night

Rain showers before 2am, then a chance of snow showers. Some thunder is also possible. Low around 27. Southwest wind 11 to 13 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

Thursday

A chance of snow showers, mainly before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 36. West wind 11 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

Thursday Night

Partly cloudy, with a low around 24. West wind 5 to 7 mph becoming calm in the evening.

Friday

Snow likely before 2pm, then snow, possibly mixed with rain. High near 44. South wind 9 to 16 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

Friday Night

Snow before 8pm, then a chance of snow showers between 8pm and 2am. Low around 24. West wind around 13 mph, with gusts as high as 28 mph. Chance of precipitation is 80%.

Saturday

Partly sunny, with a high near 38. West wind around 10 mph, with gusts as high as 20 mph.

Saturday Night

A chance of snow showers. Mostly cloudy, with a low around 26. Chance of precipitation is 50%.

Sunday

A chance of rain and snow showers before 2pm, then a chance of rain showers. Mostly cloudy, with a high near 54. Chance of precipitation is 50%.

Sunday Night

Rain and snow showers. Low around 29. Chance of precipitation is 80%.

Monday

Rain and snow showers. High near 41. Chance of precipitation is 80%.

Monday Night

A chance of snow showers. Mostly cloudy, with a low around 13. Chance of precipitation is 30%.