Weather in Herndon Heights, WV
Herndon Heights, Sunday, 9 August, 00:26
Overcast. Feels like 69°. High 87°, low 68°.
Monthly outlook for Herndon Heights, WV: average high 81.4°, average low 62.1°. That is 0.7° above the climate normal for August. Precipitation is expected on 10 days (about 2.7 inches), against a normal of 7 days and 2.0 inches. The warmest day looks like 10 August (89.6°), the coolest 21 August (52.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 81.2° | 80.2° | +0.6° |
| 19 August – 28 August | 81.6° | 80° | +0.9° |
| 29 August – 7 September | at normal | 78.7° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Rhodell (8 mi).
0.06
Herndon Heights, Monday, 10 August
Light rain. High 90°, low 69°.
0.51Herndon Heights, Tuesday, 11 August
Rain. High 81°, low 66°.
0.67Herndon Heights, Wednesday, 12 August
Rain. High 86°, low 63°.
0.05Herndon Heights, Thursday, 13 August
Light rain. High 81°, low 63°.
0.5Herndon Heights, Friday, 14 August
Rain. High 65°, low 60°.
0
Herndon Heights, Saturday, 15 August
Partly cloudy. High 80°, low 57°.
0Herndon Heights, Sunday, 16 August
Overcast. High 79°, low 61°.
0.43Herndon Heights, Monday, 17 August
Rain. High 81°, low 66°.
0.06Herndon Heights, Tuesday, 18 August
Light rain. High 83°, low 64°.
0
Herndon Heights, Wednesday, 19 August
Clear. High 86°, low 63°.
0.1Herndon Heights, Thursday, 20 August
Light rain. High 75°, low 54°.
0Herndon Heights, Friday, 21 August
Partly cloudy. High 76°, low 53°.
0.02Herndon Heights, Saturday, 22 August
Light rain. High 82°, low 56°.
0.2Herndon Heights, Sunday, 23 August
Light rain. High 86°, low 65°.
0Herndon Heights, Monday, 24 August
Overcast. High 86°, low 65°.
0.08Herndon Heights, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.07
Herndon Heights, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.11Herndon Heights, Thursday, 27 August
Climate normal for this date — 60-year average.
0.09Herndon Heights, Friday, 28 August
Climate normal for this date — 60-year average.
0.07Herndon Heights, Saturday, 29 August
Climate normal for this date — 60-year average.
0.08Herndon Heights, Sunday, 30 August
Climate normal for this date — 60-year average.
0.12Herndon Heights, Monday, 31 August
Climate normal for this date — 60-year average.
0.16Herndon Heights, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.07Herndon Heights, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.11Herndon Heights, Thursday, 3 September
Climate normal for this date — 60-year average.
0.18Herndon Heights, Friday, 4 September
Climate normal for this date — 60-year average.
0.19Herndon Heights, Saturday, 5 September
Climate normal for this date — 60-year average.
0.13Herndon Heights, Sunday, 6 September
Climate normal for this date — 60-year average.
0.07Herndon Heights, 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 Herndon Heights, WV 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 Herndon Heights, WV 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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