Current Conditions

Chambersburg, Pennsylvania

70°F21°C

Partly Cloudy

Wind

SSE 4 mph7 km/h

Humidity

74%

Cloud Cover

83%

As of Tuesday, September 8, 2026 at 11:48 PM EDT

Today's Outlook

Night

Mostly cloudy, with a low around 65°F18°C. Breezy from the S at 7 to 9 mph10 to 14 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Partly Cloudy	High 88°F31°C	Low 65°F18°C	Precip 0 in0.1 mm3%	Cloud 61%	Wind SSW 7 mph11 km/h	Wednesday: Mostly cloudy and hot, with a high of 88°F31°C and morning low of 66°F19°C. Breezy from the SSW at 7 to 9 mph11 to 14 km/h. Wednesday Night: Mostly cloudy, with a low around 65°F18°C. Breezy from the S at 7 to 9 mph10 to 14 km/h.
Light Rain	High 83°F28°CFeels 86°F30°C	Low 72°F22°C	Precip 0.3 in7.7 mm64%	Cloud 84%	Wind W 5 mph9 km/h	Thursday: Overcast and warm, with a high of 83°F28°C and morning low of 73°F23°C. Breezy from the W at 6 to 7 mph9 to 11 km/h. 54% chance of light rain throughout the day. Humid. Thursday Night: Overcast, with a low around 72°F22°C. Breezy from the WSW at 5 to 7 mph9 to 12 km/h. 64% chance of light rain throughout the night.
Showers	High 81°F27°C	Low 67°F19°C	Precip 0.03 in0.8 mm38%	Cloud 68%	Wind NNW 4 mph6 km/h	Friday: Mostly cloudy and warm, with a high of 81°F27°C and morning low of 68°F20°C. Light wind from the NNW around 4 mph6 km/h. Friday Night: Mostly cloudy, with a low around 67°F19°C. Light wind from the N around 4 mph7 km/h. 38% chance of light rain overnight.
Light Rain	High 73°F23°C	Low 64°F18°C	Precip 0.42 in10.6 mm82%	Cloud 95%	Wind SE 5 mph8 km/h	Saturday: Overcast and warm, with a high of 73°F23°C and morning low of 65°F19°C. Breezy from the SSE at 6 to 7 mph10 to 12 km/h. 82% chance of light rain throughout the day. Humid. Saturday Night: Overcast, with a low around 64°F18°C. Light wind from the SE around 4 mph7 km/h. 75% chance of light rain throughout the night.
Showers	High 83°F29°CFeels 86°F30°C	Low 69°F21°C	Precip 0.15 in3.8 mm50%	Cloud 64%	Wind W 5 mph7 km/h	Sunday: Mostly cloudy and warm, with a high of 83°F29°C and morning low of 69°F21°C. Light wind from the W around 5 mph8 km/h. 27% chance of drizzle throughout the day. Humid. Sunday Night: Mostly cloudy, with a low around 69°F21°C. Light wind from the WSW around 4 mph7 km/h. 50% chance of showers throughout the night.
Clear	High 78°F26°C	Low 64°F18°C	Precip 0.01 in0.3 mm3%	Cloud 39%	Wind NNW 5 mph9 km/h	Monday: Partly cloudy and warm, with a high of 78°F26°C and morning low of 64°F18°C. Light wind from the NNW around 6 mph9 km/h. Monday Night: Partly cloudy, with a low around 64°F18°C. Light wind from the NNW around 5 mph8 km/h.
Clear	High 82°F28°C	Low 60°F15°C	Precip 0.01 in0.3 mm5%	Cloud 37%	Wind SSE 6 mph10 km/h	Tuesday: Partly cloudy and warm, with a high of 82°F28°C and morning low of 61°F16°C. Breezy from the S at 6 to 8 mph10 to 12 km/h. Tuesday Night: Partly cloudy, with a low around 60°F15°C. Breezy from the SSE at 6 to 7 mph9 to 11 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 9	88°F31°C	65°F18°C	0 in0.1 mm· 3%	61%	Partly Cloudy	SSW 7 mph11 km/h
DayMostly cloudy and hot, with a high of 88°F31°C and morning low of 66°F19°C. Breezy from the SSW at 7 to 9 mph11 to 14 km/h. NightMostly cloudy, with a low around 65°F18°C. Breezy from the S at 7 to 9 mph10 to 14 km/h.
	ThursdaySep 10	83°F28°C Feels 86°F30°C	72°F22°C	0.3 in7.7 mm· 64%	84%	Light Rain	W 5 mph9 km/h
DayOvercast and warm, with a high of 83°F28°C and morning low of 73°F23°C. Breezy from the W at 6 to 7 mph9 to 11 km/h. 54% chance of light rain throughout the day. Humid. NightOvercast, with a low around 72°F22°C. Breezy from the WSW at 5 to 7 mph9 to 12 km/h. 64% chance of light rain throughout the night.
	FridaySep 11	81°F27°C	67°F19°C	0.03 in0.8 mm· 38%	68%	Showers	NNW 4 mph6 km/h
DayMostly cloudy and warm, with a high of 81°F27°C and morning low of 68°F20°C. Light wind from the NNW around 4 mph6 km/h. NightMostly cloudy, with a low around 67°F19°C. Light wind from the N around 4 mph7 km/h. 38% chance of light rain overnight.
	SaturdaySep 12	73°F23°C	64°F18°C	0.42 in10.6 mm· 82%	95%	Light Rain	SE 5 mph8 km/h
DayOvercast and warm, with a high of 73°F23°C and morning low of 65°F19°C. Breezy from the SSE at 6 to 7 mph10 to 12 km/h. 82% chance of light rain throughout the day. Humid. NightOvercast, with a low around 64°F18°C. Light wind from the SE around 4 mph7 km/h. 75% chance of light rain throughout the night.
	SundaySep 13	83°F29°C Feels 86°F30°C	69°F21°C	0.15 in3.8 mm· 50%	64%	Showers	W 5 mph7 km/h
DayMostly cloudy and warm, with a high of 83°F29°C and morning low of 69°F21°C. Light wind from the W around 5 mph8 km/h. 27% chance of drizzle throughout the day. Humid. NightMostly cloudy, with a low around 69°F21°C. Light wind from the WSW around 4 mph7 km/h. 50% chance of showers throughout the night.
	MondaySep 14	78°F26°C	64°F18°C	0.01 in0.3 mm· 3%	39%	Clear	NNW 5 mph9 km/h
DayPartly cloudy and warm, with a high of 78°F26°C and morning low of 64°F18°C. Light wind from the NNW around 6 mph9 km/h. NightPartly cloudy, with a low around 64°F18°C. Light wind from the NNW around 5 mph8 km/h.
	TuesdaySep 15	82°F28°C	60°F15°C	0.01 in0.3 mm· 5%	37%	Clear	SSE 6 mph10 km/h
DayPartly cloudy and warm, with a high of 82°F28°C and morning low of 61°F16°C. Breezy from the S at 6 to 8 mph10 to 12 km/h. NightPartly cloudy, with a low around 60°F15°C. Breezy from the SSE at 6 to 7 mph9 to 11 km/h.
	WednesdaySep 16	86°F30°C	67°F19°C	0.05 in1.3 mm· 21%	45%	Drizzle	SSW 5 mph8 km/h
DayPartly cloudy and warm, with a high of 86°F30°C and morning low of 67°F20°C. Light wind from the SW around 5 mph7 km/h. 21% chance of drizzle in the afternoon. Humid. NightPartly cloudy, with a low around 67°F19°C. Light wind from the S around 5 mph8 km/h. 17% chance of drizzle in the evening.
	ThursdaySep 17	84°F29°C	68°F20°C	0.09 in2.3 mm· 27%	48%	Showers	SSW 5 mph8 km/h
DayMostly cloudy and warm, with a high of 84°F29°C and morning low of 68°F20°C. Light wind from the SW around 5 mph8 km/h. 27% chance of showers throughout the day. Humid. NightPartly cloudy, with a low around 68°F20°C. Light wind from the SSW around 5 mph8 km/h. 21% chance of drizzle throughout the night.
	FridaySep 18	81°F27°C	68°F20°C	0.1 in2.5 mm· 30%	51%	Showers	W 6 mph9 km/h
DayMostly cloudy and warm, with a high of 81°F27°C and morning low of 68°F20°C. Breezy from the W at 6 to 7 mph10 to 11 km/h. 30% chance of showers throughout the day. NightMostly cloudy, with a low around 68°F20°C. Light wind from the W around 6 mph9 km/h. 21% chance of drizzle throughout the night.
	SaturdaySep 19	75°F24°C	62°F17°C	0.1 in2.5 mm· 18%	53%	Drizzle	NW 6 mph9 km/h
DayMostly cloudy and warm, with a high of 75°F24°C and morning low of 62°F17°C. Light wind from the NW around 6 mph10 km/h. 18% chance of drizzle throughout the day. NightMostly cloudy, with a low around 63°F17°C. Light wind from the NW around 5 mph9 km/h. 13% chance of drizzle throughout the night.
	SundaySep 20	71°F22°C	58°F15°C	0.15 in3.7 mm· 22%	55%	Showers	NNW 6 mph9 km/h
DayMostly cloudy and warm, with a high of 71°F22°C and morning low of 59°F15°C. Light wind from the NW around 6 mph9 km/h. 22% chance of showers throughout the day. NightMostly cloudy, with a low around 58°F15°C. Light wind from the NNW around 5 mph9 km/h. 20% chance of showers throughout the night.
	MondaySep 21	70°F21°C	55°F13°C	0.14 in3.6 mm· 20%	60%	Showers	NNE 6 mph9 km/h
DayMostly cloudy and warm, with a high of 70°F21°C and morning low of 55°F13°C. Light wind from the N around 6 mph10 km/h. 18% chance of showers throughout the day. NightMostly cloudy, with a low around 55°F13°C. Light wind from the NNE around 6 mph9 km/h. 20% chance of showers throughout the night.
	TuesdaySep 22	70°F21°C	55°F13°C	0.15 in3.9 mm· 21%	59%	Showers	NNE 6 mph9 km/h
DayMostly cloudy and warm, with a high of 70°F21°C and morning low of 55°F13°C. Light wind from the N around 6 mph9 km/h. 20% chance of showers throughout the day. NightMostly cloudy, with a low around 55°F13°C. Light wind from the NE around 5 mph9 km/h. 21% chance of showers throughout the night.
	WednesdaySep 23	69°F21°C	54°F12°C	0.11 in2.9 mm· 20%	59%	Showers	NE 6 mph9 km/h
DayMostly cloudy and warm, with a high of 69°F21°C and morning low of 54°F12°C. Light wind from the NE around 6 mph10 km/h. 20% chance of showers throughout the day. NightMostly cloudy, with a low around 54°F12°C. Light wind from the NE around 5 mph8 km/h. 19% chance of drizzle throughout the night.

Nearby Cities

Hagerstown21 mi33 km Carlisle31 mi50 km Martinsburg37 mi59 km Hanover37 mi60 km Frederick39 mi62 km Ballenger Creek41 mi66 km

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

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Coordinates: 39.9376°N, 77.6611°W·Elevation: 188m·Timezone: America/New_York·Population: 20,691