Weather in Riderwood, MD
Riderwood, Wednesday, 28 October, 09:50
Mostly clear. Feels like 52°. High 64°, low 45°.
Monthly outlook for Riderwood, MD: average high 60.3°, average low 46.8°. That is 1.4° above the climate normal for October. Precipitation is expected on 6 days (about 3.7 inches), against a normal of 4 days and 1.9 inches. The warmest day looks like 30 October (70.5°), the coolest 9 November (37.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 28 October – 6 November | 64.9° | 59.1° | +3.2° |
| 7 November – 16 November | 52.5° | 54.4° | -1° |
| 17 November – 26 November | at normal | 50.9° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Parkville (5 mi).
0
Riderwood, Thursday, 29 October
Clear. High 70°, low 43°.
0Riderwood, Friday, 30 October
Clear. High 71°, low 47°.
0
Riderwood, Saturday, 31 October
Partly cloudy. High 62°, low 46°.
0Riderwood, Sunday, 1 November
Partly cloudy. High 65°, low 50°.
0Riderwood, Monday, 2 November
Clear. High 70°, low 47°.
0.19
Riderwood, Tuesday, 3 November
Light rain. High 60°, low 54°.
0.44Riderwood, Wednesday, 4 November
Rain. High 57°, low 52°.
0.78Riderwood, Thursday, 5 November
Rain. High 67°, low 60°.
0.16Riderwood, Friday, 6 November
Rain. High 62°, low 52°.
0Riderwood, Saturday, 7 November
Clear. High 53°, low 42°.
0Riderwood, Sunday, 8 November
Clear. High 50°, low 39°.
0Riderwood, Monday, 9 November
Clear. High 52°, low 38°.
0
Riderwood, Tuesday, 10 November
Overcast. High 52°, low 40°.
0.21Riderwood, Wednesday, 11 November
Light rain. High 54°, low 45°.
1.94Riderwood, Thursday, 12 November
Heavy rain. High 56°, low 50°.
0.11
Riderwood, Friday, 13 November
Climate normal for this date — 60-year average.
0.07Riderwood, Saturday, 14 November
Climate normal for this date — 60-year average.
0.1Riderwood, Sunday, 15 November
Climate normal for this date — 60-year average.
0.15Riderwood, Monday, 16 November
Climate normal for this date — 60-year average.
0.08Riderwood, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.06Riderwood, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.1Riderwood, Thursday, 19 November
Climate normal for this date — 60-year average.
0.08Riderwood, Friday, 20 November
Climate normal for this date — 60-year average.
0.09Riderwood, Saturday, 21 November
Climate normal for this date — 60-year average.
0.13Riderwood, Sunday, 22 November
Climate normal for this date — 60-year average.
0.07Riderwood, Monday, 23 November
Climate normal for this date — 60-year average.
0.13Riderwood, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.11Riderwood, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.15Riderwood, Thursday, 26 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 Riderwood, 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 Riderwood, 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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