As of 02:58 EST

Weather in Gum Swamp, MD

40°

Gum Swamp, Sunday, 15 November, 02:58

Clear. Feels like 34°. High 51°, low 40°.

Pressure30.09 inHg

Wind10 mph NW

Humidity78%

Visibility6.2 mi

Dew point34°

See detailed hourly forecast

Monthly outlook for Gum Swamp, MD: average high 55.2°, average low 40.2°. That is 0.5° above the climate normal for November. Precipitation is expected on 2 days (about 1.4 inches), against a normal of 4 days and 1.5 inches. The warmest day looks like 27 November (65.9°), the coolest 25 November (25.1°).

55.2°/40.2°

Average high / low

+0.5°

Above normal

2 / 4

Wet days / normal

1.4 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
15 November – 24 November	56.1°	54.6°	+0.8°
25 November – 4 December	53.8°	52.6°	+0.6°
5 December – 14 December	at normal	48.6°	—

November records over 66 years

77.9°7 November 2024All-time high

21.6°23 November 2018All-time low

Climate normals and records are computed from the nearest reference point — Vienna (8 mi).

Mon, 1652° / 41°

52 °

Gum Swamp, Monday, 16 November

Overcast. High 52°, low 41°.

Pressure30.45 inHg

Wind8.6 mph NW

Humidity53%

Visibility6.2 mi

Dew point34°

Tue, 1754° / 38°

54 °

Gum Swamp, Tuesday, 17 November

Clear. High 54°, low 38°.

Pressure30.53 inHg

Wind6.4 mph NW

Humidity58%

Visibility6.2 mi

Dew point39°

Wed, 1860° / 40°

60 °

Gum Swamp, Wednesday, 18 November

Clear. High 60°, low 40°.

Pressure30.50 inHg

Wind3.6 mph NW

Humidity54%

Visibility6.2 mi

Dew point41°

Thu, 1962° / 42°

62 °

Gum Swamp, Thursday, 19 November

Clear. High 62°, low 42°.

Pressure30.45 inHg

Wind6.4 mph SW

Humidity72%

Visibility—

Dew point45°

Fri, 2065° / 42°

65 °

Gum Swamp, Friday, 20 November

Clear. High 65°, low 42°.

Pressure30.30 inHg

Wind5.3 mph NW

Humidity60%

Visibility—

Dew point42°

Sat, 2163° / 45°

63 °

Gum Swamp, Saturday, 21 November

Clear. High 63°, low 45°.

Pressure30.36 inHg

Wind5.2 mph NE

Humidity59%

Visibility—

Dew point42°

Sun, 2263° / 47°

63 °

Gum Swamp, Sunday, 22 November

Clear. High 63°, low 47°.

Pressure30.15 inHg

Wind8.5 mph S

Humidity61%

Visibility—

Dew point44°

Mon, 2355° / 39°

55 °

Gum Swamp, Monday, 23 November

Clear. High 55°, low 39°.

Pressure29.83 inHg

Wind17.6 mph NW

Humidity50%

Visibility—

Dew point35°

Tue, 2437° / 28°

37 °

Gum Swamp, Tuesday, 24 November

Clear. High 37°, low 28°.

Pressure30.30 inHg

Wind17.2 mph NW

Humidity36%

Visibility—

Dew point8°

Wed, 2544° / 25°

44 °

Gum Swamp, Wednesday, 25 November

Clear. High 44°, low 25°.

Pressure30.56 inHg

Wind9.6 mph N

Humidity29%

Visibility—

Dew point6°

Thu, 2647° / 30°

47 °

Gum Swamp, Thursday, 26 November

Overcast. High 47°, low 30°.

Pressure30.56 inHg

Wind3.8 mph E

Humidity33%

Visibility—

Dew point12°

Fri, 2766° / 44°

0.08

66 °

Gum Swamp, Friday, 27 November

Light rain. High 66°, low 44°.

Pressure30.39 inHg

Wind20.5 mph SE

Humidity68%

Visibility—

Dew point46°

Sat, 2866° / 53°

1.33

66 °

Gum Swamp, Saturday, 28 November

Heavy rain. High 66°, low 53°.

Pressure29.80 inHg

Wind32.4 mph SE

Humidity70%

Visibility—

Dew point54°

Sun, 2954° / 48°

54 °

Gum Swamp, Sunday, 29 November

Partly cloudy. High 54°, low 48°.

Pressure29.91 inHg

Wind15.6 mph W

Humidity59%

Visibility—

Dew point38°

Mon, 3046° / 41°

46 °

Gum Swamp, Monday, 30 November

Partly cloudy. High 46°, low 41°.

Pressure30.06 inHg

Wind12.9 mph NW

Humidity59%

Visibility—

Dew point31°

From day 17 onward the outlook is built from 60-year climate statistics

Tue, 0152° / 40°

0.1

52 °

Gum Swamp, Tuesday, 1 December

Climate normal for this date — 60-year average.

Average high52°

Average low40°

Average precipitation0.1 in

Chance of precipitation28%

Record high71° (2006)

Record low19° (1967)

Wed, 0251° / 38°

0.08

51 °

Gum Swamp, Wednesday, 2 December

Climate normal for this date — 60-year average.

Average high51°

Average low38°

Average precipitation0.08 in

Chance of precipitation22%

Record high64° (1970)

Record low15° (1967)

Thu, 0351° / 39°

0.08

51 °

Gum Swamp, Thursday, 3 December

Climate normal for this date — 60-year average.

Average high51°

Average low39°

Average precipitation0.08 in

Chance of precipitation25%

Record high69° (1991)

Record low21° (1976)

Fri, 0451° / 38°

0.07

51 °

Gum Swamp, Friday, 4 December

Climate normal for this date — 60-year average.

Average high51°

Average low38°

Average precipitation0.07 in

Chance of precipitation22%

Record high71° (1998)

Record low19° (1976)

Sat, 0549° / 38°

0.15

49 °

Gum Swamp, Saturday, 5 December

Climate normal for this date — 60-year average.

Average high49°

Average low38°

Average precipitation0.15 in

Chance of precipitation33%

Record high70° (1982)

Record low26° (1976)

Sun, 0650° / 38°

0.1

50 °

Gum Swamp, Sunday, 6 December

Climate normal for this date — 60-year average.

Average high50°

Average low38°

Average precipitation0.1 in

Chance of precipitation28%

Record high70° (1998)

Record low24° (2007)

Mon, 0749° / 37°

0.1

49 °

Gum Swamp, Monday, 7 December

Climate normal for this date — 60-year average.

Average high49°

Average low37°

Average precipitation0.1 in

Chance of precipitation27%

Record high73° (1998)

Record low18° (2002)

Tue, 0848° / 37°

0.09

48 °

Gum Swamp, Tuesday, 8 December

Climate normal for this date — 60-year average.

Average high48°

Average low37°

Average precipitation0.09 in

Chance of precipitation28%

Record high69° (1978)

Record low21° (2005)

Wed, 0948° / 36°

0.17

48 °

Gum Swamp, Wednesday, 9 December

Climate normal for this date — 60-year average.

Average high48°

Average low36°

Average precipitation0.17 in

Chance of precipitation40%

Record high67° (1978)

Record low21° (1989)

Thu, 1050° / 38°

0.16

50 °

Gum Swamp, Thursday, 10 December

Climate normal for this date — 60-year average.

Average high50°

Average low38°

Average precipitation0.16 in

Chance of precipitation37%

Record high67° (1966)

Record low19° (1968)

Fri, 1149° / 37°

0.2

49 °

Gum Swamp, Friday, 11 December

Climate normal for this date — 60-year average.

Average high49°

Average low37°

Average precipitation0.2 in

Chance of precipitation38%

Record high65° (2024)

Record low19° (1989)

Sat, 1248° / 36°

0.09

48 °

Gum Swamp, Saturday, 12 December

Climate normal for this date — 60-year average.

Average high48°

Average low36°

Average precipitation0.09 in

Chance of precipitation23%

Record high66° (2015)

Record low15° (1988)

Sun, 1348° / 36°

0.11

48 °

Gum Swamp, Sunday, 13 December

Climate normal for this date — 60-year average.

Average high48°

Average low36°

Average precipitation0.11 in

Chance of precipitation27%

Record high67° (2015)

Record low12° (1960)

Mon, 1447° / 36°

0.14

47 °

Gum Swamp, Monday, 14 December

Climate normal for this date — 60-year average.

Average high47°

Average low36°

Average precipitation0.14 in

Chance of precipitation32%

Record high68° (2015)

Record low12° (1982)

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Gum Swamp, MD are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Gum Swamp, MD since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.