Weather in Fort Belvoir, VA
Fort Belvoir, Sunday, 9 August, 12:30
Overcast. Feels like 98°. High 92°, low 73°.
Monthly outlook for Fort Belvoir, VA: average high 87.1°, average low 67.6°. That is 1.4° above the climate normal for August. Precipitation is expected on 2 days (about 0.9 inches), against a normal of 6 days and 1.9 inches. The warmest day looks like 10 August (94.6°), the coolest 16 August (59.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 86.6° | 85.2° | +0.8° |
| 19 August – 28 August | 87.8° | 83.8° | +2.2° |
| 29 August – 7 September | at normal | 82.7° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Woodlawn (2 mi).
0
Fort Belvoir, Monday, 10 August
Clear. High 95°, low 75°.
0.03
Fort Belvoir, Tuesday, 11 August
Light rain. High 89°, low 70°.
0Fort Belvoir, Wednesday, 12 August
Light rain. High 89°, low 73°.
0
Fort Belvoir, Thursday, 13 August
Partly cloudy. High 91°, low 73°.
0.31Fort Belvoir, Friday, 14 August
Rain. High 72°, low 61°.
0Fort Belvoir, Saturday, 15 August
Overcast. High 82°, low 60°.
0.02Fort Belvoir, Sunday, 16 August
Light rain. High 82°, low 60°.
0.02Fort Belvoir, Monday, 17 August
Light rain. High 86°, low 67°.
0Fort Belvoir, Tuesday, 18 August
Partly cloudy. High 89°, low 66°.
0.48Fort Belvoir, Wednesday, 19 August
Rain. High 85°, low 67°.
0Fort Belvoir, Thursday, 20 August
Clear. High 88°, low 67°.
0Fort Belvoir, Friday, 21 August
Overcast. High 84°, low 66°.
0Fort Belvoir, Saturday, 22 August
Clear. High 93°, low 66°.
0
Fort Belvoir, Sunday, 23 August
Mostly clear. High 91°, low 74°.
0Fort Belvoir, Monday, 24 August
Clear. High 85°, low 66°.
0.07Fort Belvoir, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.05Fort Belvoir, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.13Fort Belvoir, Thursday, 27 August
Climate normal for this date — 60-year average.
0.16
Fort Belvoir, Friday, 28 August
Climate normal for this date — 60-year average.
0.11Fort Belvoir, Saturday, 29 August
Climate normal for this date — 60-year average.
0.06Fort Belvoir, Sunday, 30 August
Climate normal for this date — 60-year average.
0.08Fort Belvoir, Monday, 31 August
Climate normal for this date — 60-year average.
0.16Fort Belvoir, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.09Fort Belvoir, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.12Fort Belvoir, Thursday, 3 September
Climate normal for this date — 60-year average.
0.09Fort Belvoir, Friday, 4 September
Climate normal for this date — 60-year average.
0.14Fort Belvoir, Saturday, 5 September
Climate normal for this date — 60-year average.
0.22Fort Belvoir, Sunday, 6 September
Climate normal for this date — 60-year average.
0.09Fort Belvoir, Monday, 7 September
Climate normal for this date — 60-year average.
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 Fort Belvoir, 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 Fort Belvoir, 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.
Sun and moon today
Weather history
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