Weather in Old Courthouse, VA
Old Courthouse, Thursday, 15 October, 04:13
Overcast. Feels like 70°. High 71°, low 60°.
Monthly outlook for Old Courthouse, VA: average high 66.3°, average low 51.7°. That is 1.8° above the climate normal for October. Precipitation is expected on 6 days (about 2.0 inches), against a normal of 4 days and 1.9 inches. The warmest day looks like 16 October (85.4°), the coolest 18 October (40.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 15 October – 24 October | 67.7° | 64.2° | +1.9° |
| 25 October – 3 November | 64° | 61.2° | +1.6° |
| 4 November – 13 November | at normal | 56.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Tysons (1 mi).
0.28
Old Courthouse, Friday, 16 October
Heavy rain. High 85°, low 60°.
0.03Old Courthouse, Saturday, 17 October
Light rain. High 61°, low 47°.
0
Old Courthouse, Sunday, 18 October
Clear. High 57°, low 41°.
0Old Courthouse, Monday, 19 October
Clear. High 62°, low 42°.
0Old Courthouse, Tuesday, 20 October
Clear. High 67°, low 43°.
0Old Courthouse, Wednesday, 21 October
Clear. High 69°, low 51°.
0
Old Courthouse, Thursday, 22 October
Mostly clear. High 67°, low 51°.
0Old Courthouse, Friday, 23 October
Clear. High 68°, low 51°.
0Old Courthouse, Saturday, 24 October
Clear. High 70°, low 52°.
0Old Courthouse, Sunday, 25 October
Clear. High 70°, low 53°.
0.08Old Courthouse, Monday, 26 October
Light rain. High 63°, low 57°.
0.25Old Courthouse, Tuesday, 27 October
Light rain. High 62°, low 56°.
0.74Old Courthouse, Wednesday, 28 October
Rain. High 60°, low 56°.
0.41Old Courthouse, Thursday, 29 October
Rain. High 66°, low 55°.
0Old Courthouse, Friday, 30 October
Clear. High 62°, low 52°.
0.06Old Courthouse, Saturday, 31 October
Climate normal for this date — 60-year average.
0.09
Old 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.
0.19Old Courthouse, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.23
Old Courthouse, Thursday, 12 November
Climate normal for this date — 60-year average.
0.1Old Courthouse, Friday, 13 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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