Two Storms to Bring Impactful Winter Weather to the Central and Eastern U.S.

A winter storm will bring heavy snow and ice to the Ohio Valley into the Mid-Atlantic Tuesday into Wednesday. Significant ice is forecast for the Central Appalachians. Heavy snow is likely through the I-95 corridor from Virginia to Pennsylvania. Another winter storm is slated to bring heavy snow and ice to the Central Plains later Tuesday, and spread into the Midwest and Great Lakes Wednesday. Read More >

Current conditions at

St Marys Municipal Airport (KOYM)

Lat: 41.41°NLon: 78.5°WElev: 1934ft.

Mostly Cloudy

21°F

-6°C

Humidity	74%
Wind Speed	SW 5 mph
Barometer	30.37 in
Dewpoint	14°F (-10°C)
Visibility	10.00 mi
Wind Chill	14°F (-10°C)
Last update	10 Feb 9:15 pm EST

More Information:

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

Extended Forecast for

Penfield PA

Tonight
Low: 18 °F
Mostly Cloudy
Tuesday
High: 30 °F
Cloudy then
Slight Chance
Snow
Tuesday Night
Low: 22 °F
Chance Snow
Wednesday
High: 30 °F
Slight Chance
Snow then
Wintry Mix
Likely
Wednesday Night
Low: 29 °F
Wintry Mix
Thursday
High: 42 °F
Rain/Snow
Likely
Thursday Night
Low: 16 °F
Mostly Cloudy
Friday
High: 28 °F
Mostly Sunny
Friday Night
Low: 19 °F
Mostly Cloudy

Detailed Forecast

Tonight

Mostly cloudy, with a low around 18. Calm wind.

Tuesday

A slight chance of snow after 1pm. Cloudy, with a high near 30. Light south wind. Chance of precipitation is 20%.

Tuesday Night

A chance of snow before 1am, then a slight chance of snow after 3am. Mostly cloudy, with a low around 22. Calm wind becoming east around 5 mph. Chance of precipitation is 30%.

Wednesday

A chance of snow before 4pm, then snow likely, possibly mixed with freezing rain. Cloudy, with a high near 30. Southeast wind 6 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Wednesday Night

Snow and freezing rain, possibly mixed with sleet before 1am, then rain or freezing rain between 1am and 4am, then rain after 4am. Low around 29. Southeast wind 10 to 13 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New snow and sleet accumulation of less than a half inch possible.

Thursday

Rain likely, possibly mixed with snow, mainly before 1pm. Mostly cloudy, with a high near 42. Chance of precipitation is 60%. Little or no snow accumulation expected.

Thursday Night

Mostly cloudy, with a low around 16.

Friday

Mostly sunny, with a high near 28.

Friday Night

Mostly cloudy, with a low around 19.

Saturday

Snow. High near 35. Chance of precipitation is 90%.

Saturday Night

Rain and snow. Low around 29. Chance of precipitation is 100%.

Sunday

Rain and snow. High near 33. Chance of precipitation is 90%.