Current Conditions

St. Charles, Maryland

90°F32°C

Partly Cloudy

Wind

WNW 6 mph10 km/h

Humidity

45%

Cloud Cover

57%

As of Thursday, August 13, 2026 at 3:17 PM EDT

Today's Outlook

Day

Mostly cloudy and hot, with a high of 92°F33°C. Light wind from the WNW around 5 mph9 km/h. Humid.

Night

Overcast, with a low around 80°F27°C. Light wind from the ESE around 4 mph6 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Partly Cloudy	High 92°F33°C	Low 80°F27°C	Precip 0 in0 mm—	Cloud 78%	Wind WNW 5 mph7 km/h	Thursday: Mostly cloudy and hot, with a high of 92°F33°C. Light wind from the WNW around 5 mph9 km/h. Humid. Thursday Night: Overcast, with a low around 80°F27°C. Light wind from the ESE around 4 mph6 km/h.
Light Rain	High 86°F30°CFeels 90°F32°C	Low 77°F25°C	Precip 0.13 in3.3 mm51%	Cloud 88%	Wind NNE 3 mph6 km/h	Friday: Overcast and warm, with a high of 86°F30°C and morning low of 79°F26°C. Light wind from the N around 4 mph6 km/h. 51% chance of light rain throughout the day. Heavy, humid air. Friday Night: Overcast, with a low around 77°F25°C. Light wind from the NNE around 3 mph5 km/h. 21% chance of drizzle in the evening.
Drizzle	High 86°F30°CFeels 90°F32°C	Low 75°F24°C	Precip 0.09 in2.3 mm19%	Cloud 74%	Wind E 4 mph6 km/h	Saturday: Mostly cloudy and hot, with a high of 86°F30°C and morning low of 76°F25°C. Light wind from the E around 4 mph6 km/h. 19% chance of drizzle throughout the day. Humid. Saturday Night: Mostly cloudy, with a low around 75°F24°C. Light wind from the ESE around 4 mph7 km/h. 13% chance of drizzle throughout the night.
Rain	High 85°F29°CFeels 92°F33°C	Low 75°F24°C	Precip 0.36 in9.1 mm70%	Cloud 84%	Wind S 6 mph10 km/h	Sunday: Overcast and warm, with a high of 85°F29°C and morning low of 77°F25°C — feels like 91°F33°C. Breezy from the S at 7 to 8 mph11 to 13 km/h. 60% chance of light rain throughout the day. Heavy, humid air. Sunday Night: Overcast, with a low around 75°F24°C. Breezy from the S at 6 to 7 mph9 to 11 km/h. 70% chance of rain throughout the night.
Showers	High 90°F32°CFeels 98°F37°C	Low 76°F25°C	Precip 0.18 in4.5 mm43%	Cloud 64%	Wind WNW 6 mph9 km/h	Monday: Mostly cloudy and hot, with a high of 90°F32°C and morning low of 78°F26°C — feels like 99°F37°C. Breezy from the WNW at 6 to 7 mph10 to 11 km/h. 43% chance of showers throughout the day. Heat risk in the afternoon. Monday Night: Mostly cloudy, with a low around 76°F25°C. Breezy from the W at 6 to 7 mph9 to 11 km/h. 41% chance of showers throughout the night.
Clear	High 88°F31°C	Low 75°F24°C	Precip 0.01 in0.3 mm5%	Cloud 33%	Wind NNW 5 mph9 km/h	Tuesday: Partly cloudy and hot, with a high of 88°F31°C and morning low of 76°F24°C. Light wind from the NNW around 5 mph9 km/h. Humid. Tuesday Night: Partly cloudy, with a low around 75°F24°C. Breezy from the NNW at 5 to 7 mph8 to 11 km/h.
Drizzle	High 89°F32°C	Low 72°F22°C	Precip 0.02 in0.6 mm12%	Cloud 34%	Wind S 5 mph8 km/h	Wednesday: Partly cloudy and hot, with a high of 89°F32°C and morning low of 74°F23°C. Light wind from the SSW around 4 mph7 km/h. 12% chance of drizzle. Humid. Wednesday Night: Partly cloudy, with a low around 72°F22°C. Breezy from the S at 5 to 7 mph9 to 12 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	ThursdayAug 13	92°F33°C	80°F27°C	0 in0 mm· —	78%	Partly Cloudy	WNW 5 mph7 km/h
DayMostly cloudy and hot, with a high of 92°F33°C. Light wind from the WNW around 5 mph9 km/h. Humid. NightOvercast, with a low around 80°F27°C. Light wind from the ESE around 4 mph6 km/h.
	FridayAug 14	86°F30°C Feels 90°F32°C	77°F25°C	0.13 in3.3 mm· 51%	88%	Light Rain	NNE 3 mph6 km/h
DayOvercast and warm, with a high of 86°F30°C and morning low of 79°F26°C. Light wind from the N around 4 mph6 km/h. 51% chance of light rain throughout the day. Heavy, humid air. NightOvercast, with a low around 77°F25°C. Light wind from the NNE around 3 mph5 km/h. 21% chance of drizzle in the evening.
	SaturdayAug 15	86°F30°C Feels 90°F32°C	75°F24°C	0.09 in2.3 mm· 19%	74%	Drizzle	E 4 mph6 km/h
DayMostly cloudy and hot, with a high of 86°F30°C and morning low of 76°F25°C. Light wind from the E around 4 mph6 km/h. 19% chance of drizzle throughout the day. Humid. NightMostly cloudy, with a low around 75°F24°C. Light wind from the ESE around 4 mph7 km/h. 13% chance of drizzle throughout the night.
	SundayAug 16	85°F29°C Feels 92°F33°C	75°F24°C	0.36 in9.1 mm· 70%	84%	Rain	S 6 mph10 km/h
DayOvercast and warm, with a high of 85°F29°C and morning low of 77°F25°C — feels like 91°F33°C. Breezy from the S at 7 to 8 mph11 to 13 km/h. 60% chance of light rain throughout the day. Heavy, humid air. NightOvercast, with a low around 75°F24°C. Breezy from the S at 6 to 7 mph9 to 11 km/h. 70% chance of rain throughout the night.
	MondayAug 17	90°F32°C Feels 98°F37°C	76°F25°C	0.18 in4.5 mm· 43%	64%	Showers	WNW 6 mph9 km/h
DayMostly cloudy and hot, with a high of 90°F32°C and morning low of 78°F26°C — feels like 99°F37°C. Breezy from the WNW at 6 to 7 mph10 to 11 km/h. 43% chance of showers throughout the day. Heat risk in the afternoon. NightMostly cloudy, with a low around 76°F25°C. Breezy from the W at 6 to 7 mph9 to 11 km/h. 41% chance of showers throughout the night.
	TuesdayAug 18	88°F31°C	75°F24°C	0.01 in0.3 mm· 5%	33%	Clear	NNW 5 mph9 km/h
DayPartly cloudy and hot, with a high of 88°F31°C and morning low of 76°F24°C. Light wind from the NNW around 5 mph9 km/h. Humid. NightPartly cloudy, with a low around 75°F24°C. Breezy from the NNW at 5 to 7 mph8 to 11 km/h.
	WednesdayAug 19	89°F32°C	72°F22°C	0.02 in0.6 mm· 12%	34%	Drizzle	S 5 mph8 km/h
DayPartly cloudy and hot, with a high of 89°F32°C and morning low of 74°F23°C. Light wind from the SSW around 4 mph7 km/h. 12% chance of drizzle. Humid. NightPartly cloudy, with a low around 72°F22°C. Breezy from the S at 5 to 7 mph9 to 12 km/h.
	ThursdayAug 20	91°F33°C Feels 95°F35°C	77°F25°C	0.14 in3.5 mm· 29%	54%	Showers	SW 6 mph10 km/h
DayMostly cloudy and hot, with a high of 91°F33°C and morning low of 78°F26°C. Light wind from the WSW around 6 mph10 km/h. 29% chance of showers throughout the day. Heat risk in the afternoon. NightMostly cloudy, with a low around 77°F25°C. Breezy from the SSW at 6 to 7 mph10 to 11 km/h. 26% chance of showers throughout the night.
	FridayAug 21	85°F29°C	73°F23°C	0.07 in1.8 mm· 20%	48%	Showers	N 5 mph9 km/h
DayPartly cloudy and warm, with a high of 85°F29°C and morning low of 73°F23°C. Light wind from the N around 5 mph8 km/h. 20% chance of showers in the afternoon. NightMostly cloudy, with a low around 73°F23°C. Breezy from the NNW at 6 to 7 mph9 to 11 km/h. 16% chance of drizzle throughout the night.
	SaturdayAug 22	84°F29°C	71°F22°C	0.11 in2.7 mm· 22%	55%	Showers	ESE 5 mph8 km/h
DayMostly cloudy and warm, with a high of 84°F29°C and morning low of 72°F22°C. Light wind from the N around 5 mph8 km/h. 22% chance of drizzle throughout the day. NightMostly cloudy, with a low around 71°F22°C. Light wind from the SSE around 5 mph8 km/h. 20% chance of showers throughout the night.
	SundayAug 23	84°F29°C	71°F22°C	0.17 in4.2 mm· 24%	54%	Showers	N 5 mph8 km/h
DayMostly cloudy and warm, with a high of 84°F29°C and morning low of 72°F22°C. Light wind from the N around 5 mph8 km/h. 24% chance of showers throughout the day. NightMostly cloudy, with a low around 71°F22°C. Light wind from the S around 5 mph8 km/h. 21% chance of showers throughout the night.
	MondayAug 24	85°F30°C	70°F21°C	0.08 in2.1 mm· 15%	44%	Drizzle	WSW 5 mph8 km/h
DayPartly cloudy and warm, with a high of 85°F30°C and morning low of 71°F22°C. Light wind from the NNW around 5 mph8 km/h. 15% chance of drizzle throughout the day. NightPartly cloudy, with a low around 70°F21°C. Light wind from the SSW around 5 mph8 km/h. 10% chance of drizzle throughout the night.
	TuesdayAug 25	87°F31°C	71°F22°C	0.04 in0.9 mm· 12%	37%	Drizzle	SW 5 mph8 km/h
DayPartly cloudy and hot, with a high of 87°F31°C and morning low of 72°F22°C. Light wind from the W around 5 mph8 km/h. 12% chance of drizzle in the afternoon. NightPartly cloudy, with a low around 71°F22°C. Light wind from the SSW around 5 mph9 km/h.
	WednesdayAug 26	88°F31°C	71°F22°C	0.05 in1.2 mm· 13%	39%	Drizzle	WSW 5 mph8 km/h
DayPartly cloudy and hot, with a high of 88°F31°C and morning low of 73°F23°C. Light wind from the W around 5 mph8 km/h. 13% chance of drizzle throughout the day. NightPartly cloudy, with a low around 71°F22°C. Light wind from the SSW around 5 mph9 km/h. 12% chance of drizzle in the evening.
	ThursdayAug 27	87°F31°C	72°F22°C	0.06 in1.6 mm· 16%	43%	Drizzle	W 5 mph8 km/h
DayPartly cloudy and hot, with a high of 87°F31°C and morning low of 73°F23°C. Light wind from the NW around 5 mph8 km/h. 16% chance of drizzle throughout the day. NightPartly cloudy, with a low around 72°F22°C. Light wind from the SW around 5 mph8 km/h. 16% chance of drizzle throughout the night.

Nearby Cities

Saint Charles1 mi1 km Waldorf1 mi2 km Fort Washington9 mi14 km Clinton11 mi18 km Fort Hunt11 mi18 km Hybla Valley13 mi21 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: 38.6073°N, 76.9248°W·Elevation: 63m·Timezone: America/New_York·Population: 33,379