Weather in North Mount Vernon, VA
North Mount Vernon, Sunday, 9 August, 08:28
Overcast. Feels like 80°. High 93°, low 74°.
Monthly outlook for North Mount Vernon, VA: average high 91°, average low 69.6°. That is 3.6° above the climate normal for August. Precipitation is expected on 5 days (about 1.1 inches), against a normal of 6 days and 2.0 inches. The warmest day looks like 24 August (103.7°), the coolest 16 August (61.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 86.8° | 85.2° | +0.9° |
| 19 August – 28 August | 97.9° | 83.8° | +7.8° |
| 29 August – 7 September | at normal | 82.7° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Hybla Valley (2 mi).
0
North Mount Vernon, Monday, 10 August
Partly cloudy. High 95°, low 76°.
0.06
North Mount Vernon, Tuesday, 11 August
Light rain. High 94°, low 70°.
0.22North Mount Vernon, Wednesday, 12 August
Rain. High 91°, low 69°.
0.06North Mount Vernon, Thursday, 13 August
Light rain. High 88°, low 72°.
0North Mount Vernon, Friday, 14 August
Overcast. High 81°, low 66°.
0North Mount Vernon, Saturday, 15 August
Overcast. High 82°, low 63°.
0North Mount Vernon, Sunday, 16 August
Overcast. High 79°, low 61°.
0.02North Mount Vernon, Monday, 17 August
Light rain. High 79°, low 67°.
0
North Mount Vernon, Tuesday, 18 August
Mostly clear. High 87°, low 66°.
0
North Mount Vernon, Wednesday, 19 August
Clear. High 89°, low 67°.
0North Mount Vernon, Thursday, 20 August
Partly cloudy. High 93°, low 68°.
0.18North Mount Vernon, Friday, 21 August
Rain. High 102°, low 71°.
0.01North Mount Vernon, Saturday, 22 August
Light rain. High 100°, low 75°.
0.03North Mount Vernon, Sunday, 23 August
Light rain. High 101°, low 76°.
0.52North Mount Vernon, Monday, 24 August
Heavy rain. High 104°, low 72°.
0.08North Mount Vernon, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.05North Mount Vernon, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.13
North Mount Vernon, Thursday, 27 August
Climate normal for this date — 60-year average.
0.16North Mount Vernon, Friday, 28 August
Climate normal for this date — 60-year average.
0.12North Mount Vernon, Saturday, 29 August
Climate normal for this date — 60-year average.
0.05North Mount Vernon, Sunday, 30 August
Climate normal for this date — 60-year average.
0.07North Mount Vernon, Monday, 31 August
Climate normal for this date — 60-year average.
0.16North Mount Vernon, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.09North Mount Vernon, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.12North Mount Vernon, Thursday, 3 September
Climate normal for this date — 60-year average.
0.09North Mount Vernon, Friday, 4 September
Climate normal for this date — 60-year average.
0.14North Mount Vernon, Saturday, 5 September
Climate normal for this date — 60-year average.
0.22North Mount Vernon, Sunday, 6 September
Climate normal for this date — 60-year average.
0.09North Mount Vernon, 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 North Mount Vernon, 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 North Mount Vernon, 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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