Weather in Rock Creek Knolls, MD
Rock Creek Knolls, Sunday, 9 August, 14:22
Overcast. Feels like 99°. High 91°, low 72°.
Monthly outlook for Rock Creek Knolls, MD: average high 86.2°, average low 68.4°. That is 1.4° above the climate normal for August. Precipitation is expected on 3 days (about 0.6 inches), against a normal of 6 days and 2.2 inches. The warmest day looks like 10 August (94.5°), the coolest 15 August (60.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 85.7° | 84.3° | +0.7° |
| 19 August – 28 August | 87° | 83° | +2.2° |
| 29 August – 7 September | at normal | 81.9° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Forest Glen (2 mi).
0.01
Rock Creek Knolls, Monday, 10 August
Light rain. High 95°, low 74°.
0.11Rock Creek Knolls, Tuesday, 11 August
Light rain. High 90°, low 71°.
0.01Rock Creek Knolls, Wednesday, 12 August
Light rain. High 88°, low 73°.
0
Rock Creek Knolls, Thursday, 13 August
Partly cloudy. High 89°, low 75°.
0.1Rock Creek Knolls, Friday, 14 August
Light rain. High 72°, low 62°.
0Rock Creek Knolls, Saturday, 15 August
Overcast. High 80°, low 60°.
0.01Rock Creek Knolls, Sunday, 16 August
Light rain. High 78°, low 62°.
0Rock Creek Knolls, Monday, 17 August
Light rain. High 85°, low 67°.
0Rock Creek Knolls, Tuesday, 18 August
Partly cloudy. High 88°, low 67°.
0.39Rock Creek Knolls, Wednesday, 19 August
Rain. High 84°, low 69°.
0.01Rock Creek Knolls, Thursday, 20 August
Light rain. High 87°, low 68°.
0Rock Creek Knolls, Friday, 21 August
Partly cloudy. High 84°, low 66°.
0
Rock Creek Knolls, Saturday, 22 August
Clear. High 92°, low 69°.
0
Rock Creek Knolls, Sunday, 23 August
Mostly clear. High 90°, low 74°.
0Rock Creek Knolls, Monday, 24 August
Clear. High 85°, low 65°.
0.07Rock Creek Knolls, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.06Rock Creek Knolls, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.14
Rock Creek Knolls, Thursday, 27 August
Climate normal for this date — 60-year average.
0.17Rock Creek Knolls, Friday, 28 August
Climate normal for this date — 60-year average.
0.12Rock Creek Knolls, Saturday, 29 August
Climate normal for this date — 60-year average.
0.06Rock Creek Knolls, Sunday, 30 August
Climate normal for this date — 60-year average.
0.07Rock Creek Knolls, Monday, 31 August
Climate normal for this date — 60-year average.
0.14Rock Creek Knolls, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.12Rock Creek Knolls, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.11Rock Creek Knolls, Thursday, 3 September
Climate normal for this date — 60-year average.
0.09Rock Creek Knolls, Friday, 4 September
Climate normal for this date — 60-year average.
0.13Rock Creek Knolls, Saturday, 5 September
Climate normal for this date — 60-year average.
0.24Rock Creek Knolls, Sunday, 6 September
Climate normal for this date — 60-year average.
0.07Rock Creek Knolls, 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 Rock Creek Knolls, 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 Rock Creek Knolls, 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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