As of 16:37 EDT

Weather in Washington, DC

91°

Washington, Saturday, 8 August, 16:37

Overcast. Feels like 100°. High 91°, low 72°.

Pressure29.94 inHg

Wind8 mph S

Humidity58%

Visibility6.2 mi

Dew point74°

See detailed hourly forecast

Monthly outlook for Washington, DC: average high 84.7°, average low 68.6°. That is 0.1° below the climate normal for August. Precipitation is expected on 4 days (about 1.8 inches), against a normal of 6 days and 2.1 inches. The warmest day looks like 10 August (94.1°), the coolest 15 August (60.7°).

84.7°/68.6°

Average high / low

−0.1°

Below normal

4 / 6

Wet days / normal

1.8 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
8 August – 17 August	87.1°	85.7°	+0.8°
18 August – 27 August	80.6°	84.1°	-1.9°
28 August – 6 September	at normal	83.3°	—

August records over 66 years

101.5°20 August 1962All-time high

50.4°29 August 1986All-time low

Sun, 0990° / 72°

90 °

Washington, Sunday, 9 August

Partly cloudy. High 90°, low 72°.

Pressure30.03 inHg

Wind7.2 mph NW

Humidity44%

Visibility6.2 mi

Dew point65°

Mon, 1094° / 73°

0.02

94 °

Washington, Monday, 10 August

Light rain. High 94°, low 73°.

Pressure30.03 inHg

Wind7.8 mph NW

Humidity38%

Visibility6.2 mi

Dew point64°

Tue, 1193° / 73°

0.03

93 °

Washington, Tuesday, 11 August

Light rain. High 93°, low 73°.

Pressure29.97 inHg

Wind9.5 mph NW

Humidity45%

Visibility6.2 mi

Dew point63°

Wed, 1291° / 74°

0.01

91 °

Washington, Wednesday, 12 August

Light rain. High 91°, low 74°.

Pressure29.83 inHg

Wind4.8 mph W

Humidity58%

Visibility6.2 mi

Dew point66°

Thu, 1390° / 74°

0.04

90 °

Washington, Thursday, 13 August

Light rain. High 90°, low 74°.

Pressure29.80 inHg

Wind11.5 mph NW

Humidity39%

Visibility—

Dew point60°

Fri, 1473° / 63°

0.9

73 °

Washington, Friday, 14 August

Heavy rain. High 73°, low 63°.

Pressure30.00 inHg

Wind6.4 mph NE

Humidity78%

Visibility—

Dew point58°

Sat, 1579° / 61°

79 °

Washington, Saturday, 15 August

Clear. High 79°, low 61°.

Pressure30.21 inHg

Wind6.9 mph N

Humidity36%

Visibility—

Dew point47°

Sun, 1680° / 64°

80 °

Washington, Sunday, 16 August

Clear. High 80°, low 64°.

Pressure30.27 inHg

Wind5.4 mph NW

Humidity30%

Visibility—

Dew point44°

Mon, 1789° / 65°

89 °

Washington, Monday, 17 August

Mostly clear. High 89°, low 65°.

Pressure30.12 inHg

Wind8.1 mph SE

Humidity42%

Visibility—

Dew point59°

Tue, 1873° / 70°

0.27

73 °

Washington, Tuesday, 18 August

Rain. High 73°, low 70°.

Pressure29.97 inHg

Wind8 mph S

Humidity95%

Visibility—

Dew point69°

Wed, 1988° / 70°

0.03

88 °

Washington, Wednesday, 19 August

Light rain. High 88°, low 70°.

Pressure29.88 inHg

Wind7.1 mph NW

Humidity40%

Visibility—

Dew point57°

Thu, 2085° / 69°

85 °

Washington, Thursday, 20 August

Overcast. High 85°, low 69°.

Pressure29.97 inHg

Wind7 mph E

Humidity40%

Visibility—

Dew point55°

Fri, 2173° / 68°

0.49

73 °

Washington, Friday, 21 August

Light rain. High 73°, low 68°.

Pressure29.88 inHg

Wind7.7 mph S

Humidity94%

Visibility—

Dew point71°

Sat, 2287° / 68°

87 °

Washington, Saturday, 22 August

Clear. High 87°, low 68°.

Pressure29.77 inHg

Wind7.9 mph NW

Humidity41%

Visibility—

Dew point58°

Sun, 2377° / 63°

77 °

Washington, Sunday, 23 August

Overcast. High 77°, low 63°.

Pressure30.06 inHg

Wind13 mph N

Humidity26%

Visibility—

Dew point37°

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

Mon, 2484° / 66°

0.09

84 °

Washington, Monday, 24 August

Climate normal for this date — 60-year average.

Average high84°

Average low66°

Average precipitation0.09 in

Chance of precipitation23%

Record high97° (1995)

Record low57° (1971)

Tue, 2585° / 67°

0.07

85 °

Washington, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high85°

Average low67°

Average precipitation0.07 in

Chance of precipitation23%

Record high98° (1968)

Record low57° (1986)

Wed, 2685° / 67°

0.05

85 °

Washington, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high85°

Average low67°

Average precipitation0.05 in

Chance of precipitation23%

Record high96° (1975)

Record low57° (1963)

Thu, 2785° / 68°

0.13

85 °

Washington, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high85°

Average low68°

Average precipitation0.13 in

Chance of precipitation40%

Record high97° (1987)

Record low59° (2025)

Fri, 2885° / 69°

0.16

85 °

Washington, Friday, 28 August

Climate normal for this date — 60-year average.

Average high85°

Average low69°

Average precipitation0.16 in

Chance of precipitation45%

Record high98° (1973)

Record low59° (2025)

Sat, 2985° / 68°

0.12

85 °

Washington, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high85°

Average low68°

Average precipitation0.12 in

Chance of precipitation30%

Record high96° (1973)

Record low50° (1986)

Sun, 3085° / 67°

0.06

85 °

Washington, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high85°

Average low67°

Average precipitation0.06 in

Chance of precipitation25%

Record high96° (1973)

Record low51° (1986)

Mon, 3184° / 67°

0.07

84 °

Washington, Monday, 31 August

Climate normal for this date — 60-year average.

Average high84°

Average low67°

Average precipitation0.07 in

Chance of precipitation25%

Record high96° (1973)

Record low55° (1986)

Tue, 0182° / 66°

0.14

82 °

Washington, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high82°

Average low66°

Average precipitation0.14 in

Chance of precipitation27%

Record high96° (1980)

Record low57° (1967)

Wed, 0283° / 66°

0.11

83 °

Washington, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high83°

Average low66°

Average precipitation0.11 in

Chance of precipitation40%

Record high97° (1980)

Record low55° (1967)

Thu, 0383° / 66°

0.11

83 °

Washington, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high83°

Average low66°

Average precipitation0.11 in

Chance of precipitation30%

Record high97° (2023)

Record low52° (1967)

Fri, 0483° / 67°

0.09

83 °

Washington, Friday, 4 September

Climate normal for this date — 60-year average.

Average high83°

Average low67°

Average precipitation0.09 in

Chance of precipitation33%

Record high97° (2023)

Record low55° (2024)

Sat, 0582° / 66°

0.13

82 °

Washington, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high82°

Average low66°

Average precipitation0.13 in

Chance of precipitation30%

Record high98° (2023)

Record low52° (1997)

Sun, 0682° / 65°

0.23

82 °

Washington, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high82°

Average low65°

Average precipitation0.23 in

Chance of precipitation30%

Record high98° (2023)

Record low55° (2000)

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 Washington, DC 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 Washington, DC 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.