Weather in Glenn Dale, MD
Glenn Dale, Sunday, 9 August, 03:23
Partly cloudy. Feels like 75°. High 89°, low 74°.
Monthly outlook for Glenn Dale, MD: average high 90.3°, average low 69.1°. That is 3.6° above the climate normal for August. Precipitation is expected on 7 days (about 0.9 inches), against a normal of 6 days and 2.3 inches. The warmest day looks like 21 August (101.9°), the coolest 16 August (59.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 86.1° | 84.5° | +0.9° |
| 19 August – 28 August | 97.2° | 83.2° | +7.8° |
| 29 August – 7 September | at normal | 82.1° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Seabrook (2 mi).
0
Glenn Dale, Monday, 10 August
Partly cloudy. High 92°, low 73°.
0.07
Glenn Dale, Tuesday, 11 August
Rain. High 93°, low 71°.
0.07Glenn Dale, Wednesday, 12 August
Light rain. High 91°, low 73°.
0.03Glenn Dale, Thursday, 13 August
Light rain. High 87°, low 71°.
0
Glenn Dale, Friday, 14 August
Overcast. High 81°, low 63°.
0Glenn Dale, Saturday, 15 August
Overcast. High 80°, low 62°.
0Glenn Dale, Sunday, 16 August
Overcast. High 83°, low 60°.
0.11Glenn Dale, Monday, 17 August
Light rain. High 79°, low 67°.
0.03Glenn Dale, Tuesday, 18 August
Light rain. High 85°, low 66°.
0
Glenn Dale, Wednesday, 19 August
Clear. High 88°, low 67°.
0Glenn Dale, Thursday, 20 August
Partly cloudy. High 92°, low 67°.
0.07Glenn Dale, Friday, 21 August
Light rain. High 102°, low 70°.
0.07Glenn Dale, Saturday, 22 August
Light rain. High 98°, low 76°.
0.05Glenn Dale, Sunday, 23 August
Light rain. High 101°, low 74°.
0.35Glenn Dale, Monday, 24 August
Rain. High 102°, low 73°.
0.06Glenn Dale, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.06Glenn Dale, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.16
Glenn Dale, Thursday, 27 August
Climate normal for this date — 60-year average.
0.17Glenn Dale, Friday, 28 August
Climate normal for this date — 60-year average.
0.13Glenn Dale, Saturday, 29 August
Climate normal for this date — 60-year average.
0.07Glenn Dale, Sunday, 30 August
Climate normal for this date — 60-year average.
0.09Glenn Dale, Monday, 31 August
Climate normal for this date — 60-year average.
0.15Glenn Dale, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.13Glenn Dale, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.12Glenn Dale, Thursday, 3 September
Climate normal for this date — 60-year average.
0.09Glenn Dale, Friday, 4 September
Climate normal for this date — 60-year average.
0.14Glenn Dale, Saturday, 5 September
Climate normal for this date — 60-year average.
0.24Glenn Dale, Sunday, 6 September
Climate normal for this date — 60-year average.
0.09Glenn Dale, 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 Glenn Dale, MD 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 Glenn Dale, MD 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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