As of 08:28 EDT

Weather in Derwood, MD

46°

Derwood, Wednesday, 21 October, 08:28

Clear. Feels like 46°. High 66°, low 44°.

Pressure30.24 inHg

Wind2 mph NE

Humidity81%

Visibility6.2 mi

Dew point40°

See detailed hourly forecast

Monthly outlook for Derwood, MD: average high 62°, average low 46.4°. That is 0.4° above the climate normal for October. Precipitation is expected on 2 days (about 0.5 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 29 October (70.7°), the coolest 31 October (36.6°).

62°/46.4°

Average high / low

+0.4°

Above normal

2 / 4

Wet days / normal

0.5 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
21 October – 30 October	63.7°	61.8°	+1°
31 October – 9 November	59.2°	59°	+0.1°
10 November – 19 November	at normal	53.8°	—

October records over 66 years

93.2°2 October 2019All-time high

27.1°28 October 1976All-time low

Climate normals and records are computed from the nearest reference point — Gaithersburg (4 mi).

Thu, 2267° / 40°

67 °

Derwood, Thursday, 22 October

Clear. High 67°, low 40°.

Pressure30.12 inHg

Wind10.1 mph N

Humidity35%

Visibility6.2 mi

Dew point30°

Fri, 2360° / 44°

60 °

Derwood, Friday, 23 October

Overcast. High 60°, low 44°.

Pressure30.36 inHg

Wind6.8 mph NE

Humidity53%

Visibility6.2 mi

Dew point40°

Sat, 2458° / 39°

58 °

Derwood, Saturday, 24 October

Partly cloudy. High 58°, low 39°.

Pressure30.56 inHg

Wind3.5 mph SE

Humidity42%

Visibility6.2 mi

Dew point33°

Sun, 2563° / 41°

63 °

Derwood, Sunday, 25 October

Clear. High 63°, low 41°.

Pressure30.59 inHg

Wind4.2 mph E

Humidity58%

Visibility—

Dew point40°

Mon, 2666° / 43°

66 °

Derwood, Monday, 26 October

Clear. High 66°, low 43°.

Pressure30.39 inHg

Wind4.9 mph W

Humidity67%

Visibility—

Dew point45°

Tue, 2768° / 50°

68 °

Derwood, Tuesday, 27 October

Overcast. High 68°, low 50°.

Pressure30.18 inHg

Wind5.7 mph NW

Humidity56%

Visibility—

Dew point45°

Wed, 2865° / 52°

65 °

Derwood, Wednesday, 28 October

Overcast. High 65°, low 52°.

Pressure30.27 inHg

Wind5 mph SE

Humidity69%

Visibility—

Dew point49°

Thu, 2971° / 52°

71 °

Derwood, Thursday, 29 October

Clear. High 71°, low 52°.

Pressure30.03 inHg

Wind12.6 mph SW

Humidity56%

Visibility—

Dew point45°

Fri, 3055° / 43°

55 °

Derwood, Friday, 30 October

Overcast. High 55°, low 43°.

Pressure30.21 inHg

Wind13.3 mph NW

Humidity45%

Visibility—

Dew point29°

Sat, 3152° / 37°

52 °

Derwood, Saturday, 31 October

Clear. High 52°, low 37°.

Pressure30.45 inHg

Wind8.5 mph N

Humidity44%

Visibility—

Dew point26°

Sun, 0154° / 39°

54 °

Derwood, Sunday, 1 November

Overcast. High 54°, low 39°.

Pressure30.53 inHg

Wind10.4 mph S

Humidity49%

Visibility—

Dew point29°

Mon, 0254° / 48°

0.28

54 °

Derwood, Monday, 2 November

Light rain. High 54°, low 48°.

Pressure30.27 inHg

Wind6.4 mph S

Humidity79%

Visibility—

Dew point47°

Tue, 0360° / 54°

0.24

60 °

Derwood, Tuesday, 3 November

Rain. High 60°, low 54°.

Pressure30.09 inHg

Wind3.2 mph N

Humidity99%

Visibility—

Dew point56°

Wed, 0468° / 58°

0.01

68 °

Derwood, Wednesday, 4 November

Light rain. High 68°, low 58°.

Pressure30.15 inHg

Wind5.5 mph E

Humidity90%

Visibility—

Dew point59°

Thu, 0566° / 59°

0.01

66 °

Derwood, Thursday, 5 November

Light rain. High 66°, low 59°.

Pressure30.24 inHg

Wind8.2 mph SE

Humidity78%

Visibility—

Dew point55°

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

Fri, 0658° / 43°

0.07

58 °

Derwood, Friday, 6 November

Climate normal for this date — 60-year average.

Average high58°

Average low43°

Average precipitation0.07 in

Chance of precipitation23%

Record high80° (2024)

Record low26° (1967)

Sat, 0757° / 42°

0.08

57 °

Derwood, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high57°

Average low42°

Average precipitation0.08 in

Chance of precipitation25%

Record high76° (2024)

Record low27° (1967)

Sun, 0857° / 41°

0.17

57 °

Derwood, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high57°

Average low41°

Average precipitation0.17 in

Chance of precipitation20%

Record high75° (1975)

Record low27° (1960)

Mon, 0957° / 41°

0.06

57 °

Derwood, Monday, 9 November

Climate normal for this date — 60-year average.

Average high57°

Average low41°

Average precipitation0.06 in

Chance of precipitation28%

Record high74° (1975)

Record low24° (2019)

Tue, 1057° / 41°

0.14

57 °

Derwood, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high57°

Average low41°

Average precipitation0.14 in

Chance of precipitation28%

Record high72° (2020)

Record low29° (2017)

Wed, 1155° / 40°

0.17

55 °

Derwood, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high55°

Average low40°

Average precipitation0.17 in

Chance of precipitation28%

Record high72° (2006)

Record low21° (2017)

Thu, 1253° / 40°

0.2

53 °

Derwood, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high53°

Average low40°

Average precipitation0.2 in

Chance of precipitation37%

Record high71° (1964)

Record low28° (1987)

Fri, 1353° / 38°

0.09

53 °

Derwood, Friday, 13 November

Climate normal for this date — 60-year average.

Average high53°

Average low38°

Average precipitation0.09 in

Chance of precipitation37%

Record high71° (1964)

Record low22° (2019)

Sat, 1453° / 38°

0.07

53 °

Derwood, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high53°

Average low38°

Average precipitation0.07 in

Chance of precipitation13%

Record high73° (1985)

Record low23° (1986)

Sun, 1555° / 39°

0.09

55 °

Derwood, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high55°

Average low39°

Average precipitation0.09 in

Chance of precipitation28%

Record high75° (1993)

Record low26° (1986)

Mon, 1653° / 38°

0.12

53 °

Derwood, Monday, 16 November

Climate normal for this date — 60-year average.

Average high53°

Average low38°

Average precipitation0.12 in

Chance of precipitation32%

Record high71° (2001)

Record low23° (1995)

Tue, 1752° / 38°

0.08

52 °

Derwood, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high52°

Average low38°

Average precipitation0.08 in

Chance of precipitation27%

Record high68° (1987)

Record low26° (1995)

Wed, 1853° / 37°

0.06

53 °

Derwood, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high53°

Average low37°

Average precipitation0.06 in

Chance of precipitation27%

Record high70° (1963)

Record low26° (2014)

Thu, 1953° / 37°

0.1

53 °

Derwood, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high53°

Average low37°

Average precipitation0.1 in

Chance of precipitation28%

Record high69° (1985)

Record low22° (2014)

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 Derwood, 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 Derwood, 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.