What is today's weather forecast for San Mar, MD?

Today's forecast for San Mar shows a low of 42 degrees Fahrenheit. Mostly cloudy, with a low around 42.

What is the 7-day weather forecast for San Mar, MD?

The 7-day forecast for San Mar shows highs from 46 to 63 degrees and lows from 31 to 51 degrees Fahrenheit. Expect precipitation on 4 days with chances of 20% or higher.

Will it rain in San Mar, MD this week?

Yes, rain is possible in San Mar this week. Precipitation chances: Saturday (50% chance), Tuesday (30% chance), Thursday (40% chance), Friday (30% chance).

How accurate is the San Mar weather forecast?

WeatherForYou provides highly accurate San Mar forecasts using National Weather Service data and current conditions from the nearest available weather stations, often miles closer than regional airports, for the most precise local forecasts.

San Mar, MD Weather Forecast and Current Conditions

Current Conditions From Nearby Local Station

Switch to Metric Units

46°F
Feels Like 46°F

Humidity 64% Dew Point 35°F Wind Calm Barometer 29.96 in.761 mm

Report from a MADIS/MESONET weather station 1.4 miles SSE of central San Mar
at 5:53 PM Fri, Nov 14, 2025

Point Forecast at a Glance

FriNov 14

SatNov 15

30%

SunNov 16

MonNov 17

TueNov 18

30%

WedNov 19

ThuNov 20

7-Day Temperature Trend

Week Ahead Summary

Variable high temperatures through the week, ranging from 46°F to 63°F. Some rain possible with at least 3 days showing precipitation chances of 20% or higher.

Climate Context

This week's forecast shows temperatures running 1°F below the historical average for November. Normal highs for this period are around 54°F with lows around 35°F.

This Date in Weather History

1986 - An early season cold wave set more than 200 records from the northwestern U.S. to the east coast over a seven day period. For some places it proved to be the coldest weather of the winter season.

San Mar, MD 7 Day Weather Forecast Details

Friday Nov 14

Night: Mostly cloudy, with a low around 42. Light and variable wind.

Saturday Nov 15

Day: A chance of rain, mainly after 5pm. Mostly cloudy, with a high near 63. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 30%.

Night: A chance of rain, mainly after 7pm. Mostly cloudy, with a low around 51. Southwest wind 8 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.

Sunday Nov 16

Day: Mostly sunny, with a high near 56. Breezy, with a northwest wind 15 to 22 mph, with gusts as high as 34 mph.

Night: Mostly clear, with a low around 35. West wind 11 to 14 mph, with gusts as high as 26 mph.

Monday Nov 17

Day: Sunny, with a high near 49.

Night: Partly cloudy, with a low around 31.

Tuesday Nov 18

Day: A chance of rain after 1pm. Mostly cloudy, with a high near 46. Chance of precipitation is 30%.

Night: A chance of rain before 1am. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.

Wednesday Nov 19

Day: Partly sunny, with a high near 50.

Night: Mostly cloudy, with a low around 35.

Thursday Nov 20

Day: Partly sunny, with a high near 53.

Night: A chance of rain. Mostly cloudy, with a low around 42. Chance of precipitation is 40%.

Friday Nov 21

Day: A chance of rain. Mostly cloudy, with a high near 57. Chance of precipitation is 30%.

About San Mar, MD

San Mar is a census-designated place (CDP) in Washington County, Maryland, United States. The population was 515 at the 2000 census.

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

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.

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