As of 23:00 EDT

Weather in McNair, VA

76°Current weather

McNair, Saturday, 8 August, 23:00

Partly cloudy. Feels like 77°. High 88°, low 71°.

Pressure30.00 inHg
Wind7.2 mph SW
Humidity81%
Visibility6.2 mi
Dew point70°

Monthly outlook for McNair, VA: average high 83.5°, average low 66.4°. That is 0.6° below the climate normal for August. Precipitation is expected on 9 days (about 1.2 inches), against a normal of 6 days and 1.9 inches. The warmest day looks like 10 August (93°), the coolest 22 August (57.6°).

83.5°/66.4°
Average high / low
−0.6°
Below normal
9 / 6
Wet days / normal
1.2 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 August – 17 August85.1°85.3°-0.1°
18 August – 27 August80.8°83.8°-1.7°
28 August – 6 Septemberat normal83°

August records over 66 years

100.6°17 August 1988All-time high
49.3°29 August 1986All-time low
Sun, 0989° / 73°0Mostly clear
89 °Mostly clear

McNair, Sunday, 9 August

Mostly clear. High 89°, low 73°.

Pressure30.03 inHg
Wind8.7 mph NW
Humidity46%
Visibility6.2 mi
Dew point66°
Mon, 1093° / 73°0.15Rain
93 °Rain

McNair, Monday, 10 August

Rain. High 93°, low 73°.

Pressure30.00 inHg
Wind6.5 mph NW
Humidity43%
Visibility6.2 mi
Dew point64°
Tue, 1189° / 68°0.33Rain
89 °Rain

McNair, Tuesday, 11 August

Rain. High 89°, low 68°.

Pressure29.94 inHg
Wind6.8 mph NW
Humidity50%
Visibility6.2 mi
Dew point65°
Wed, 1292° / 71°0.11Light rain
92 °Light rain

McNair, Wednesday, 12 August

Light rain. High 92°, low 71°.

Pressure29.77 inHg
Wind3.4 mph W
Humidity59%
Visibility6.2 mi
Dew point66°
Thu, 1384° / 71°0.04Light rain
84 °Light rain

McNair, Thursday, 13 August

Light rain. High 84°, low 71°.

Pressure29.85 inHg
Wind12.5 mph NW
Humidity36%
Visibility
Dew point53°
Fri, 1472° / 60°0Overcast
72 °Overcast

McNair, Friday, 14 August

Overcast. High 72°, low 60°.

Pressure30.09 inHg
Wind7.5 mph NW
Humidity44%
Visibility
Dew point48°
Sat, 1583° / 59°0Clear
83 °Clear

McNair, Saturday, 15 August

Clear. High 83°, low 59°.

Pressure30.18 inHg
Wind8 mph N
Humidity32%
Visibility
Dew point46°
Sun, 1685° / 60°0Mostly clear
85 °Mostly clear

McNair, Sunday, 16 August

Mostly clear. High 85°, low 60°.

Pressure30.15 inHg
Wind7.3 mph SE
Humidity35%
Visibility
Dew point51°
Mon, 1775° / 67°0.05Light rain
75 °Light rain

McNair, Monday, 17 August

Light rain. High 75°, low 67°.

Pressure30.09 inHg
Wind12.3 mph S
Humidity64%
Visibility
Dew point61°
Tue, 1875° / 66°0.07Light rain
75 °Light rain

McNair, Tuesday, 18 August

Light rain. High 75°, low 66°.

Pressure30.03 inHg
Wind4.8 mph S
Humidity73%
Visibility
Dew point65°
Wed, 1983° / 68°0.02Light rain
83 °Light rain

McNair, Wednesday, 19 August

Light rain. High 83°, low 68°.

Pressure29.88 inHg
Wind8.8 mph S
Humidity57%
Visibility
Dew point65°
Thu, 2081° / 68°0.27Light rain
81 °Light rain

McNair, Thursday, 20 August

Light rain. High 81°, low 68°.

Pressure29.74 inHg
Wind15.7 mph NW
Humidity39%
Visibility
Dew point52°
Fri, 2181° / 61°0Clear
81 °Clear

McNair, Friday, 21 August

Clear. High 81°, low 61°.

Pressure29.91 inHg
Wind11.1 mph NW
Humidity31%
Visibility
Dew point44°
Sat, 2283° / 58°0Partly cloudy
83 °Partly cloudy

McNair, Saturday, 22 August

Partly cloudy. High 83°, low 58°.

Pressure30.06 inHg
Wind6.9 mph SE
Humidity33%
Visibility
Dew point48°
Sun, 2380° / 68°0.12Light rain
80 °Light rain

McNair, Sunday, 23 August

Light rain. High 80°, low 68°.

Pressure29.94 inHg
Wind12.9 mph SW
Humidity81%
Visibility
Dew point68°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2484° / 65°0.09Climate normal
84 °Climate normal

McNair, Monday, 24 August

Climate normal for this date — 60-year average.

Average high84°
Average low65°
Average precipitation0.09 in
Chance of precipitation22%
Record high96° (1995)
Record low55° (1971)
Tue, 2584° / 66°0.07Climate normal
84 °Climate normal

McNair, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high84°
Average low66°
Average precipitation0.07 in
Chance of precipitation27%
Record high96° (1968)
Record low55° (1971)
Wed, 2685° / 66°0.04Climate normal
85 °Climate normal

McNair, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high85°
Average low66°
Average precipitation0.04 in
Chance of precipitation18%
Record high95° (1975)
Record low55° (1963)
Thu, 2785° / 67°0.14Climate normal
85 °Climate normal

McNair, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high85°
Average low67°
Average precipitation0.14 in
Chance of precipitation37%
Record high96° (1987)
Record low58° (1969)
Fri, 2885° / 67°0.15Climate normal
85 °Climate normal

McNair, Friday, 28 August

Climate normal for this date — 60-year average.

Average high85°
Average low67°
Average precipitation0.15 in
Chance of precipitation45%
Record high97° (2024)
Record low57° (2025)
Sat, 2984° / 67°0.11Climate normal
84 °Climate normal

McNair, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high84°
Average low67°
Average precipitation0.11 in
Chance of precipitation33%
Record high96° (1973)
Record low49° (1986)
Sun, 3084° / 66°0.06Climate normal
84 °Climate normal

McNair, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high84°
Average low66°
Average precipitation0.06 in
Chance of precipitation25%
Record high96° (2022)
Record low51° (1986)
Mon, 3183° / 66°0.07Climate normal
83 °Climate normal

McNair, Monday, 31 August

Climate normal for this date — 60-year average.

Average high83°
Average low66°
Average precipitation0.07 in
Chance of precipitation27%
Record high96° (1973)
Record low53° (1976)
Tue, 0182° / 65°0.11Climate normal
82 °Climate normal

McNair, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high82°
Average low65°
Average precipitation0.11 in
Chance of precipitation33%
Record high96° (1973)
Record low55° (1967)
Wed, 0283° / 64°0.09Climate normal
83 °Climate normal

McNair, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high83°
Average low64°
Average precipitation0.09 in
Chance of precipitation35%
Record high96° (1980)
Record low53° (2009)
Thu, 0383° / 65°0.09Climate normal
83 °Climate normal

McNair, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high83°
Average low65°
Average precipitation0.09 in
Chance of precipitation27%
Record high98° (2023)
Record low50° (1967)
Fri, 0482° / 65°0.1Climate normal
82 °Climate normal

McNair, Friday, 4 September

Climate normal for this date — 60-year average.

Average high82°
Average low65°
Average precipitation0.1 in
Chance of precipitation35%
Record high99° (2023)
Record low53° (2024)
Sat, 0582° / 64°0.15Climate normal
82 °Climate normal

McNair, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high82°
Average low64°
Average precipitation0.15 in
Chance of precipitation30%
Record high99° (2023)
Record low52° (1997)
Sun, 0681° / 64°0.27Climate normal
81 °Climate normal

McNair, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high81°
Average low64°
Average precipitation0.27 in
Chance of precipitation32%
Record high98° (2023)
Record low51° (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 McNair, VA 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 McNair, VA 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.