Current Conditions

Saint Charles, Maryland

77°F25°C

Cloudy

Wind

SSE 6 mph10 km/h

Humidity

66%

Cloud Cover

78%

As of Tuesday, September 8, 2026 at 8:04 PM EDT

Today's Outlook

Night

Mostly cloudy, with a low around 73°F23°C. Breezy from the S at 6 to 7 mph10 to 11 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Cloudy	High 84°F29°C	Low 73°F23°C	Precip 0 in0 mm—	Cloud 82%	Wind S 5 mph8 km/h	Tuesday: Overcast and warm, with a high of 84°F29°C. Light wind from the SSW around 4 mph6 km/h. Tuesday Night: Mostly cloudy, with a low around 73°F23°C. Breezy from the S at 6 to 7 mph10 to 11 km/h.
Partly Cloudy	High 89°F32°C	Low 68°F20°C	Precip 0 in0 mm—	Cloud 40%	Wind SSW 9 mph14 km/h	Wednesday: Partly cloudy and hot, with a high of 89°F32°C and morning low of 69°F21°C. Breezy from the SSW at 8 to 9 mph13 to 15 km/h. Wednesday Night: Partly cloudy, with a low around 68°F20°C. Breezy from the SSW at 9 to 11 mph15 to 18 km/h.
Showers	High 91°F33°CFeels 96°F35°C	Low 76°F24°C	Precip 0.11 in2.9 mm61%	Cloud 51%	Wind WSW 7 mph11 km/h	Thursday: Mostly cloudy and hot, with a high of 91°F33°C and morning low of 76°F24°C. Breezy from the WSW at 6 to 7 mph10 to 12 km/h. 32% chance of drizzle in the afternoon. Heat risk in the afternoon. Thursday Night: Partly cloudy, with a low around 76°F24°C. Breezy from the SW at 7 to 11 mph12 to 18 km/h. 61% chance of showers in the evening.
Showers	High 83°F29°C	Low 73°F23°C	Precip 0.09 in2.4 mm51%	Cloud 69%	Wind NNE 4 mph7 km/h	Friday: Mostly cloudy and warm, with a high of 83°F29°C and morning low of 73°F23°C. Light wind from the NNE around 4 mph7 km/h. 26% chance of drizzle in the morning. Humid. Friday Night: Mostly cloudy, with a low around 73°F23°C. Light wind from the NNE around 5 mph8 km/h. 51% chance of showers overnight.
Rain	High 79°F26°C	Low 72°F22°C	Precip 0.45 in11.5 mm80%	Cloud 93%	Wind SE 6 mph9 km/h	Saturday: Overcast and warm, with a high of 79°F26°C and morning low of 74°F23°C. Breezy from the SE at 6 to 7 mph10 to 12 km/h. 80% chance of rain throughout the day. Heavy, humid air. Saturday Night: Overcast, with a low around 72°F22°C. Light wind from the SE around 5 mph8 km/h. 74% chance of light rain throughout the night.
Showers	High 87°F31°CFeels 92°F34°C	Low 74°F23°C	Precip 0.14 in3.6 mm51%	Cloud 53%	Wind WSW 5 mph7 km/h	Sunday: Mostly cloudy and hot, with a high of 87°F31°C and morning low of 74°F24°C — feels like 93°F34°C. Light wind from the W around 4 mph7 km/h. 19% chance of drizzle throughout the day. Heavy, humid air. Sunday Night: Mostly cloudy, with a low around 74°F23°C. Light wind from the SW around 5 mph8 km/h. 51% chance of showers throughout the night.
Clear	High 82°F28°C	Low 70°F21°C	Precip 0.01 in0.2 mm6%	Cloud 29%	Wind N 6 mph10 km/h	Monday: Partly cloudy and warm, with a high of 82°F28°C and morning low of 71°F21°C. Breezy from the N at 6 to 7 mph10 to 11 km/h. Monday Night: Partly cloudy, with a low around 70°F21°C. Breezy from the N at 6 to 7 mph10 to 11 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	TuesdaySep 8	84°F29°C	73°F23°C	0 in0 mm· —	82%	Cloudy	S 5 mph8 km/h
DayOvercast and warm, with a high of 84°F29°C. Light wind from the SSW around 4 mph6 km/h. NightMostly cloudy, with a low around 73°F23°C. Breezy from the S at 6 to 7 mph10 to 11 km/h.
	WednesdaySep 9	89°F32°C	68°F20°C	0 in0 mm· —	40%	Partly Cloudy	SSW 9 mph14 km/h
DayPartly cloudy and hot, with a high of 89°F32°C and morning low of 69°F21°C. Breezy from the SSW at 8 to 9 mph13 to 15 km/h. NightPartly cloudy, with a low around 68°F20°C. Breezy from the SSW at 9 to 11 mph15 to 18 km/h.
	ThursdaySep 10	91°F33°C Feels 96°F35°C	76°F24°C	0.11 in2.9 mm· 61%	51%	Showers	WSW 7 mph11 km/h
DayMostly cloudy and hot, with a high of 91°F33°C and morning low of 76°F24°C. Breezy from the WSW at 6 to 7 mph10 to 12 km/h. 32% chance of drizzle in the afternoon. Heat risk in the afternoon. NightPartly cloudy, with a low around 76°F24°C. Breezy from the SW at 7 to 11 mph12 to 18 km/h. 61% chance of showers in the evening.
	FridaySep 11	83°F29°C	73°F23°C	0.09 in2.4 mm· 51%	69%	Showers	NNE 4 mph7 km/h
DayMostly cloudy and warm, with a high of 83°F29°C and morning low of 73°F23°C. Light wind from the NNE around 4 mph7 km/h. 26% chance of drizzle in the morning. Humid. NightMostly cloudy, with a low around 73°F23°C. Light wind from the NNE around 5 mph8 km/h. 51% chance of showers overnight.
	SaturdaySep 12	79°F26°C	72°F22°C	0.45 in11.5 mm· 80%	93%	Rain	SE 6 mph9 km/h
DayOvercast and warm, with a high of 79°F26°C and morning low of 74°F23°C. Breezy from the SE at 6 to 7 mph10 to 12 km/h. 80% chance of rain throughout the day. Heavy, humid air. NightOvercast, with a low around 72°F22°C. Light wind from the SE around 5 mph8 km/h. 74% chance of light rain throughout the night.
	SundaySep 13	87°F31°C Feels 92°F34°C	74°F23°C	0.14 in3.6 mm· 51%	53%	Showers	WSW 5 mph7 km/h
DayMostly cloudy and hot, with a high of 87°F31°C and morning low of 74°F24°C — feels like 93°F34°C. Light wind from the W around 4 mph7 km/h. 19% chance of drizzle throughout the day. Heavy, humid air. NightMostly cloudy, with a low around 74°F23°C. Light wind from the SW around 5 mph8 km/h. 51% chance of showers throughout the night.
	MondaySep 14	82°F28°C	70°F21°C	0.01 in0.2 mm· 6%	29%	Clear	N 6 mph10 km/h
DayPartly cloudy and warm, with a high of 82°F28°C and morning low of 71°F21°C. Breezy from the N at 6 to 7 mph10 to 11 km/h. NightPartly cloudy, with a low around 70°F21°C. Breezy from the N at 6 to 7 mph10 to 11 km/h.
	TuesdaySep 15	81°F27°C	66°F19°C	0 in0.1 mm· 5%	36%	Clear	SE 6 mph10 km/h
DayPartly cloudy and warm, with a high of 81°F27°C and morning low of 67°F19°C. Light wind from the SE around 6 mph10 km/h. NightPartly cloudy, with a low around 66°F19°C. Breezy from the SE at 6 to 7 mph10 to 11 km/h.
	WednesdaySep 16	86°F30°C Feels 89°F32°C	69°F20°C	0.04 in0.9 mm· 12%	34%	Drizzle	S 5 mph9 km/h
DayPartly cloudy and hot, with a high of 86°F30°C and morning low of 70°F21°C. Light wind from the S around 5 mph8 km/h. Humid. NightPartly cloudy, with a low around 69°F20°C. Breezy from the S at 6 to 7 mph10 to 11 km/h. 12% chance of drizzle in the evening.
	ThursdaySep 17	86°F30°C Feels 89°F32°C	71°F22°C	0.04 in1.1 mm· 16%	40%	Drizzle	SSE 5 mph8 km/h
DayPartly cloudy and warm, with a high of 86°F30°C and morning low of 72°F22°C. Light wind from the SSE around 5 mph7 km/h. 16% chance of drizzle in the afternoon. Humid. NightPartly cloudy, with a low around 71°F22°C. Light wind from the SSE around 6 mph9 km/h. 14% chance of drizzle throughout the night.
	FridaySep 18	87°F31°C Feels 90°F32°C	72°F22°C	0.05 in1.3 mm· 12%	39%	Drizzle	SSW 6 mph9 km/h
DayPartly cloudy and hot, with a high of 87°F31°C and morning low of 73°F23°C. Light wind from the SW around 5 mph9 km/h. 11% chance of drizzle throughout the day. Humid. NightPartly cloudy, with a low around 72°F22°C. Breezy from the SSW at 6 to 7 mph10 to 11 km/h. 12% chance of drizzle throughout the night.
	SaturdaySep 19	84°F29°C	71°F22°C	0.1 in2.5 mm· 17%	43%	Showers	W 6 mph10 km/h
DayPartly cloudy and warm, with a high of 84°F29°C and morning low of 71°F22°C. Light wind from the WNW around 6 mph10 km/h. 17% chance of showers throughout the day. NightPartly cloudy, with a low around 71°F22°C. Breezy from the WSW at 7 mph11 km/h. 17% chance of showers throughout the night.
	SundaySep 20	78°F25°C	68°F20°C	0.09 in2.3 mm· 19%	56%	Drizzle	N 6 mph10 km/h
DayMostly cloudy and warm, with a high of 78°F25°C and morning low of 68°F20°C. Light wind from the N around 6 mph10 km/h. 19% chance of drizzle throughout the day. NightMostly cloudy, with a low around 68°F20°C. Breezy from the N at 7 mph10 km/h. 16% chance of drizzle throughout the night.
	MondaySep 21	74°F24°C	64°F18°C	0.14 in3.5 mm· 20%	58%	Showers	NNE 7 mph11 km/h
DayMostly cloudy and warm, with a high of 74°F24°C and morning low of 64°F18°C. Breezy from the N at 7 mph11 km/h. 20% chance of showers throughout the day. NightMostly cloudy, with a low around 64°F18°C. Light wind from the NNE around 6 mph10 km/h. 18% chance of drizzle throughout the night.
	TuesdaySep 22	73°F23°C	62°F16°C	0.13 in3.3 mm· 19%	59%	Showers	NE 6 mph10 km/h
DayMostly cloudy and warm, with a high of 73°F23°C and morning low of 62°F17°C. Breezy from the NE at 7 mph11 km/h. 19% chance of showers throughout the day. NightMostly cloudy, with a low around 62°F16°C. Light wind from the NE around 6 mph10 km/h. 18% chance of showers throughout the night.

Nearby Cities

St. Charles1 mi1 km Waldorf1 mi2 km Fort Washington9 mi14 km Fort Hunt11 mi18 km Clinton11 mi18 km Hybla Valley13 mi20 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.

WeatherMesh consistently outperforms legacy models in independent benchmarks. View Benchmarks →

Access WeatherMesh forecasts programmatically via our API. API Documentation →

How to Access Weather Forecasts

Pattern	Example	Description
/weather/{country}/{city}/	/weather/united-states/san-francisco/	City forecast (canonical URL)
/weather/{city}/	/weather/tokyo/	Shorthand — redirects to most populous match
/weather/{country}/{region}/{city}/	/weather/united-states/california/san-francisco/	With region — redirects to canonical
/weather/nearby?lat={lat}&lon={lon}	/weather/nearby?lat=48.1&lon=11.5	Find nearest city by coordinates
/weather/{country}/	/weather/germany/	Country index — all cities by region

Country and city names use lowercase slugs with hyphens (e.g. united-states, san-francisco). Arbitrary city names are supported — if not in our database, we geocode the name and serve the forecast for that location.

For programmatic access, use theWindBorne Forecast APIwhich returns structured JSON for any coordinates worldwide.

Coordinates: 38.6032°N, 76.9386°W·Elevation: 61m·Timezone: America/New_York·Population: 36,376