Weather in Glendale Heights, MD
Glendale Heights, Sunday, 9 August, 01:19
Overcast. Feels like 76°. High 89°, low 74°.
Monthly outlook for Glendale Heights, MD: average high 84.5°, average low 67.8°. That is 0.4° above the climate normal for August. Precipitation is expected on 6 days (about 0.8 inches), against a normal of 6 days and 2.3 inches. The warmest day looks like 10 August (94.1°), the coolest 22 August (60.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 84.3° | 84.5° | -0.1° |
| 19 August – 28 August | 84.9° | 83.2° | +0.9° |
| 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).
0.18
Glendale Heights, Monday, 10 August
Rain. High 94°, low 75°.
0.19Glendale Heights, Tuesday, 11 August
Rain. High 90°, low 70°.
0.11Glendale Heights, Wednesday, 12 August
Light rain. High 92°, low 73°.
0.02Glendale Heights, Thursday, 13 August
Light rain. High 86°, low 71°.
0Glendale Heights, Friday, 14 August
Overcast. High 71°, low 61°.
0
Glendale Heights, Saturday, 15 August
Clear. High 82°, low 61°.
0
Glendale Heights, Sunday, 16 August
Partly cloudy. High 84°, low 62°.
0.02Glendale Heights, Monday, 17 August
Light rain. High 79°, low 68°.
0.12Glendale Heights, Tuesday, 18 August
Light rain. High 74°, low 67°.
0Glendale Heights, Wednesday, 19 August
Overcast. High 83°, low 69°.
0.07Glendale Heights, Thursday, 20 August
Light rain. High 82°, low 70°.
0Glendale Heights, Friday, 21 August
Clear. High 82°, low 63°.
0Glendale Heights, Saturday, 22 August
Partly cloudy. High 84°, low 60°.
0.05Glendale Heights, Sunday, 23 August
Light rain. High 84°, low 68°.
0Glendale Heights, Monday, 24 August
Clear. High 94°, low 71°.
0.06Glendale Heights, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.06Glendale Heights, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.16
Glendale Heights, Thursday, 27 August
Climate normal for this date — 60-year average.
0.17Glendale Heights, Friday, 28 August
Climate normal for this date — 60-year average.
0.13Glendale Heights, Saturday, 29 August
Climate normal for this date — 60-year average.
0.07Glendale Heights, Sunday, 30 August
Climate normal for this date — 60-year average.
0.09Glendale Heights, Monday, 31 August
Climate normal for this date — 60-year average.
0.15Glendale Heights, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.13Glendale Heights, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.12Glendale Heights, Thursday, 3 September
Climate normal for this date — 60-year average.
0.09Glendale Heights, Friday, 4 September
Climate normal for this date — 60-year average.
0.14Glendale Heights, Saturday, 5 September
Climate normal for this date — 60-year average.
0.24Glendale Heights, Sunday, 6 September
Climate normal for this date — 60-year average.
0.09Glendale 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 Glendale Heights, 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 Glendale Heights, 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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