Weather in Waterloo, MD
Waterloo, Tuesday, 6 October, 20:56
Clear. Feels like 50°. High 64°, low 44°.
Monthly outlook for Waterloo, MD: average high 70.6°, average low 53.9°. That is 2.4° above the climate normal for October. Precipitation is expected on 3 days (about 2.5 inches), against a normal of 4 days and 1.7 inches. The warmest day looks like 8 October (79.7°), the coolest 6 October (44.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 6 October – 15 October | 70.5° | 67.7° | +1.6° |
| 16 October – 25 October | 70.7° | 63.6° | +4° |
| 26 October – 4 November | at normal | 60.8° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Columbia (4 mi).
0
Waterloo, Wednesday, 7 October
Clear. High 73°, low 45°.
0Waterloo, Thursday, 8 October
Clear. High 80°, low 56°.
0Waterloo, Friday, 9 October
Clear. High 73°, low 52°.
0
Waterloo, Saturday, 10 October
Overcast. High 74°, low 54°.
1.68
Waterloo, Sunday, 11 October
Heavy rain. High 71°, low 60°.
0.09Waterloo, Monday, 12 October
Light rain. High 75°, low 67°.
0Waterloo, Tuesday, 13 October
Overcast. High 68°, low 51°.
0Waterloo, Wednesday, 14 October
Clear. High 60°, low 45°.
0Waterloo, Thursday, 15 October
Clear. High 66°, low 49°.
0Waterloo, Friday, 16 October
Clear. High 72°, low 52°.
0Waterloo, Saturday, 17 October
Clear. High 74°, low 56°.
0Waterloo, Sunday, 18 October
Clear. High 74°, low 58°.
0Waterloo, Monday, 19 October
Overcast. High 75°, low 57°.
0.04Waterloo, Tuesday, 20 October
Light rain. High 64°, low 58°.
0.67Waterloo, Wednesday, 21 October
Rain. High 67°, low 57°.
0.08
Waterloo, Thursday, 22 October
Climate normal for this date — 60-year average.
0.11
Waterloo, Friday, 23 October
Climate normal for this date — 60-year average.
0.11Waterloo, Saturday, 24 October
Climate normal for this date — 60-year average.
0.17Waterloo, Sunday, 25 October
Climate normal for this date — 60-year average.
0.15Waterloo, Monday, 26 October
Climate normal for this date — 60-year average.
0.17Waterloo, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.11Waterloo, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.24Waterloo, Thursday, 29 October
Climate normal for this date — 60-year average.
0.09Waterloo, Friday, 30 October
Climate normal for this date — 60-year average.
0.05Waterloo, Saturday, 31 October
Climate normal for this date — 60-year average.
0.09Waterloo, Sunday, 1 November
Climate normal for this date — 60-year average.
0.13Waterloo, Monday, 2 November
Climate normal for this date — 60-year average.
0.07Waterloo, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.09Waterloo, Wednesday, 4 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 Waterloo, 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 Waterloo, 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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