Weather in Old Courthouse, VA
Old Courthouse, Monday, 12 October, 21:25
Clear. Feels like 61°. High 73°, low 59°.
Monthly outlook for Old Courthouse, VA: average high 67.1°, average low 51.8°. That is 1.6° above the climate normal for October. Precipitation is expected on 6 days (about 1.4 inches), against a normal of 4 days and 1.7 inches. The warmest day looks like 14 October (84°), the coolest 19 October (41°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 12 October – 21 October | 69.9° | 65.4° | +2.5° |
| 22 October – 31 October | 62.5° | 61.7° | +0.4° |
| 1 November – 10 November | at normal | 58.9° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Tysons (1 mi).
0
Old Courthouse, Tuesday, 13 October
Clear. High 80°, low 53°.
0.07
Old Courthouse, Wednesday, 14 October
Rain. High 84°, low 64°.
0.41Old Courthouse, Thursday, 15 October
Heavy rain. High 69°, low 58°.
0.16Old Courthouse, Friday, 16 October
Rain. High 82°, low 57°.
0Old Courthouse, Saturday, 17 October
Clear. High 55°, low 47°.
0Old Courthouse, Sunday, 18 October
Clear. High 59°, low 41°.
0Old Courthouse, Monday, 19 October
Clear. High 63°, low 41°.
0
Old Courthouse, Tuesday, 20 October
Overcast. High 64°, low 48°.
0Old Courthouse, Wednesday, 21 October
Clear. High 69°, low 50°.
0Old Courthouse, Thursday, 22 October
Clear. High 67°, low 51°.
0Old Courthouse, Friday, 23 October
Overcast. High 70°, low 50°.
0Old Courthouse, Saturday, 24 October
Overcast. High 69°, low 58°.
0.11Old Courthouse, Sunday, 25 October
Light rain. High 59°, low 55°.
0.52Old Courthouse, Monday, 26 October
Rain. High 54°, low 49°.
0
Old Courthouse, Tuesday, 27 October
Partly cloudy. High 57°, low 47°.
0.09Old Courthouse, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.22Old Courthouse, Thursday, 29 October
Climate normal for this date — 60-year average.
0.11Old Courthouse, Friday, 30 October
Climate normal for this date — 60-year average.
0.06
Old Courthouse, Saturday, 31 October
Climate normal for this date — 60-year average.
0.09Old Courthouse, Sunday, 1 November
Climate normal for this date — 60-year average.
0.12Old Courthouse, Monday, 2 November
Climate normal for this date — 60-year average.
0.06Old Courthouse, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.11Old Courthouse, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.09Old Courthouse, Thursday, 5 November
Climate normal for this date — 60-year average.
0.07Old Courthouse, Friday, 6 November
Climate normal for this date — 60-year average.
0.09Old Courthouse, Saturday, 7 November
Climate normal for this date — 60-year average.
0.16Old Courthouse, Sunday, 8 November
Climate normal for this date — 60-year average.
0.06Old Courthouse, Monday, 9 November
Climate normal for this date — 60-year average.
0.13Old Courthouse, Tuesday, 10 November
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 Old Courthouse, 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 Old Courthouse, 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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