How is the weather in Williamson, PA?

At 12:52 AM on Fri, Sep 5, 2025 it is mostly cloudy and 65 degrees Fahrenheit, feeling like 65 degrees.

Williamson, PA Weather Forecast and Current Conditions

65°F
Feels Like 65°F

Humidity 85% Dew Point 60°F Wind NE 2 MPH Gusts 2 Barometer 29.66 in.753.4 mm

Solar Rad 0 w/m2 UV Index 0

Report from 4.4 miles WSW of central Williamson at 12:52 AM Fri, Sep 5, 2025

Current Weather

65°F
Feels Like 65°F

Humidity 85% Dew Point 60°F Wind NE 2 MPH Gusts 2 Barometer 29.66 in.753.4 mm

Solar Rad 0 w/m2 UV Index 0

Report from 4.4 miles WSW of central Williamson at 12:52 AM Fri, Sep 5, 2025

Forecast at a Glance

FriSep 5

87°

63°

SatSep 6

80%

83°

54°

SunSep 7

20%

75°

47°

MonSep 8

74°

46°

TueSep 9

76°

48°

WedSep 10

78°

51°

ThuSep 11

80°

This Date in Weather History

1975 - Strong winds reduced visibilities to near zero in blowing dust resulting in a 22-car chain reaction accident on Interstate 10 near Toltec AZ. Two persons were killed, and 14 others were injured.

Williamson 7 Day Weather Forecast Details

Friday Sep 5

Day: Areas of fog before 9am. Mostly sunny, with a high near 87. Southwest wind 1 to 9 mph.

Night: Partly cloudy, with a low around 63. Southwest wind 2 to 7 mph.

Saturday Sep 6

Day: A chance of rain showers between 8am and 11am, then showers and thunderstorms. Mostly cloudy, with a high near 83. West wind 2 to 7 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Night: Showers and thunderstorms. Mostly cloudy, with a low around 54. Northwest wind 3 to 7 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Sunday Sep 7

Day: A slight chance of rain showers before 8am. Mostly sunny, with a high near 75. Chance of precipitation is 20%.

Night: Mostly clear, with a low around 47.

Monday Sep 8

Day: Sunny, with a high near 74.

Night: Mostly clear, with a low around 46.

Tuesday Sep 9

Day: Sunny, with a high near 76.

Night: Mostly clear, with a low around 48.

Wednesday Sep 10

Day: Sunny, with a high near 78.

Night: Mostly clear, with a low around 51.

Thursday Sep 11

Day: Sunny, with a high near 80.

Sun & Moon Monthly

First Light 6:15 AM

Sunrise 6:43 AM

Sunset 7:39 PM

Last Light 8:07 PM

Moonrise 6:41 PM

Moonset 4:01 AM

Moon Phase

Airport Delays - Check over 300 airports

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Weather Near Williamson

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Contiguous United States Extremes

Thu's High Temperature
112 at Death Valley, CA and 16 Miles Southwest If Tecopa, CA

Thu's Low Temperature
28 at Peter Sinks, UT

Weather Folklore

A round-topped cloud and flattened base, carries rainfall in its face.

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About Williamson, Pennsylvania

Williamson is an unincorporated community in St. Thomas Township in Franklin County, Pennsylvania, United States. Williamson is located along Pennsylvania Route 995, northwest of Greencastle and southwest of Chambersburg.

Williamson was platted circa 1870 by land owner Samuel Z. Hawbaker, and may be named after Hugh Williamson, the patriot contemporary of Benjamin Franklin, both of whom were Founding Fathers of the United States. Another possibility is that the community is named after an unknown local denizen surnamed Williamson, perhaps an early postmaster of the local post office that has been in operation at Williamson since 1872.

Content from Wikipedia, licensed under CC BY-SA 3.0.