Weather in Annandale, VA
Annandale, Tuesday, 20 October, 07:05
Clear. Feels like 46°. High 70°, low 45°.
Monthly outlook for Annandale, VA: average high 59.3°, average low 43.5°. That is 1.6° below the climate normal for October. Precipitation is expected on 2 days (about 2.8 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 27 October (71.7°), the coolest 29 October (37.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 62.6° | 62.8° | -0.1° |
| 30 October – 8 November | 53.7° | 59.9° | -3.4° |
| 9 November – 18 November | at normal | 55.1° | — |
October records over 66 years
0
Annandale, Wednesday, 21 October
Clear. High 66°, low 42°.
0Annandale, Thursday, 22 October
Clear. High 65°, low 43°.
0
Annandale, Friday, 23 October
Mostly clear. High 56°, low 43°.
0Annandale, Saturday, 24 October
Clear. High 58°, low 38°.
0Annandale, Sunday, 25 October
Clear. High 63°, low 39°.
0
Annandale, Monday, 26 October
Partly cloudy. High 69°, low 48°.
0
Annandale, Tuesday, 27 October
Overcast. High 72°, low 53°.
0Annandale, Wednesday, 28 October
Overcast. High 55°, low 43°.
0Annandale, Thursday, 29 October
Clear. High 53°, low 38°.
0Annandale, Friday, 30 October
Overcast. High 57°, low 40°.
0.01
Annandale, Saturday, 31 October
Light rain. High 53°, low 48°.
0Annandale, Sunday, 1 November
Clear. High 61°, low 45°.
0.01Annandale, Monday, 2 November
Light rain. High 51°, low 42°.
0.45Annandale, Tuesday, 3 November
Rain. High 52°, low 45°.
2.32Annandale, Wednesday, 4 November
Heavy rain. High 48°, low 43°.
0.08Annandale, Thursday, 5 November
Climate normal for this date — 60-year average.
0.06Annandale, Friday, 6 November
Climate normal for this date — 60-year average.
0.1Annandale, Saturday, 7 November
Climate normal for this date — 60-year average.
0.16Annandale, Sunday, 8 November
Climate normal for this date — 60-year average.
0.07Annandale, Monday, 9 November
Climate normal for this date — 60-year average.
0.13Annandale, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.2Annandale, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.24
Annandale, Thursday, 12 November
Climate normal for this date — 60-year average.
0.1Annandale, Friday, 13 November
Climate normal for this date — 60-year average.
0.06Annandale, Saturday, 14 November
Climate normal for this date — 60-year average.
0.09Annandale, Sunday, 15 November
Climate normal for this date — 60-year average.
0.12Annandale, Monday, 16 November
Climate normal for this date — 60-year average.
0.08Annandale, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.06Annandale, Wednesday, 18 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 Annandale, 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 Annandale, 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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