Weather in Marlo Heights, VA
Marlo Heights, Saturday, 8 August, 18:15
Overcast. Feels like 93°. High 87°, low 71°.
Monthly outlook for Marlo Heights, VA: average high 83.8°, average low 67.6°. That is 0.3° below the climate normal for August. Precipitation is expected on 4 days (about 2.0 inches), against a normal of 6 days and 2.1 inches. The warmest day looks like 10 August (93.5°), the coolest 15 August (58.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 August – 17 August | 86.2° | 85.1° | +0.6° |
| 18 August – 27 August | 79.9° | 83.5° | -2° |
| 28 August – 6 September | at normal | 82.7° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — West Falls Church (1 mi).
0
Marlo Heights, Sunday, 9 August
Partly cloudy. High 90°, low 71°.
0.03
Marlo Heights, Monday, 10 August
Light rain. High 93°, low 72°.
0.02Marlo Heights, Tuesday, 11 August
Light rain. High 92°, low 71°.
0Marlo Heights, Wednesday, 12 August
Light rain. High 90°, low 74°.
0.04Marlo Heights, Thursday, 13 August
Light rain. High 90°, low 73°.
1.02Marlo Heights, Friday, 14 August
Heavy rain. High 72°, low 62°.
0
Marlo Heights, Saturday, 15 August
Clear. High 78°, low 59°.
0Marlo Heights, Sunday, 16 August
Clear. High 80°, low 62°.
0
Marlo Heights, Monday, 17 August
Mostly clear. High 88°, low 64°.
0.31Marlo Heights, Tuesday, 18 August
Rain. High 72°, low 70°.
0.02Marlo Heights, Wednesday, 19 August
Light rain. High 87°, low 70°.
0Marlo Heights, Thursday, 20 August
Overcast. High 85°, low 67°.
0.5Marlo Heights, Friday, 21 August
Rain. High 73°, low 68°.
0Marlo Heights, Saturday, 22 August
Clear. High 87°, low 67°.
0Marlo Heights, Sunday, 23 August
Overcast. High 77°, low 62°.
0.09Marlo Heights, Monday, 24 August
Climate normal for this date — 60-year average.
0.09Marlo Heights, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.05Marlo Heights, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.15
Marlo Heights, Thursday, 27 August
Climate normal for this date — 60-year average.
0.17Marlo Heights, Friday, 28 August
Climate normal for this date — 60-year average.
0.12Marlo Heights, Saturday, 29 August
Climate normal for this date — 60-year average.
0.06Marlo Heights, Sunday, 30 August
Climate normal for this date — 60-year average.
0.08Marlo Heights, Monday, 31 August
Climate normal for this date — 60-year average.
0.14Marlo Heights, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.1Marlo Heights, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.11Marlo Heights, Thursday, 3 September
Climate normal for this date — 60-year average.
0.11Marlo Heights, Friday, 4 September
Climate normal for this date — 60-year average.
0.15Marlo Heights, Saturday, 5 September
Climate normal for this date — 60-year average.
0.23Marlo Heights, Sunday, 6 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 Marlo Heights, 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 Marlo Heights, 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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