Weather in Waterloo Mills, PA
Waterloo Mills, Sunday, 9 August, 08:38
Mostly clear. Feels like 80°. High 84°, low 71°.
Monthly outlook for Waterloo Mills, PA: average high 84.3°, average low 68.2°. That is 1.3° above the climate normal for August. Precipitation is expected on 3 days (about 0.4 inches), against a normal of 6 days and 2.1 inches. The warmest day looks like 23 August (93.9°), the coolest 15 August (58.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 80.3° | 82.7° | -1.3° |
| 19 August – 28 August | 91° | 81.3° | +5.4° |
| 29 August – 7 September | at normal | 80° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Bryn Mawr (6 mi).
0
Waterloo Mills, Monday, 10 August
Clear. High 88°, low 71°.
0
Waterloo Mills, Tuesday, 11 August
Light rain. High 88°, low 72°.
0.03Waterloo Mills, Wednesday, 12 August
Light rain. High 85°, low 69°.
0.01Waterloo Mills, Thursday, 13 August
Light rain. High 83°, low 70°.
0
Waterloo Mills, Friday, 14 August
Overcast. High 72°, low 63°.
0
Waterloo Mills, Saturday, 15 August
Partly cloudy. High 75°, low 58°.
0Waterloo Mills, Sunday, 16 August
Overcast. High 75°, low 59°.
0.14Waterloo Mills, Monday, 17 August
Light rain. High 68°, low 63°.
0.01Waterloo Mills, Tuesday, 18 August
Light rain. High 85°, low 65°.
0Waterloo Mills, Wednesday, 19 August
Clear. High 89°, low 68°.
0Waterloo Mills, Thursday, 20 August
Partly cloudy. High 90°, low 69°.
0.14Waterloo Mills, Friday, 21 August
Light rain. High 93°, low 71°.
0.08Waterloo Mills, Saturday, 22 August
Light rain. High 91°, low 73°.
0Waterloo Mills, Sunday, 23 August
Clear. High 94°, low 71°.
0Waterloo Mills, Monday, 24 August
Overcast. High 89°, low 77°.
0.06Waterloo Mills, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.06Waterloo Mills, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.18
Waterloo Mills, Thursday, 27 August
Climate normal for this date — 60-year average.
0.24Waterloo Mills, Friday, 28 August
Climate normal for this date — 60-year average.
0.11Waterloo Mills, Saturday, 29 August
Climate normal for this date — 60-year average.
0.06Waterloo Mills, Sunday, 30 August
Climate normal for this date — 60-year average.
0.07Waterloo Mills, Monday, 31 August
Climate normal for this date — 60-year average.
0.14Waterloo Mills, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.11Waterloo Mills, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.15Waterloo Mills, Thursday, 3 September
Climate normal for this date — 60-year average.
0.09Waterloo Mills, Friday, 4 September
Climate normal for this date — 60-year average.
0.08Waterloo Mills, Saturday, 5 September
Climate normal for this date — 60-year average.
0.21Waterloo Mills, Sunday, 6 September
Climate normal for this date — 60-year average.
0.11Waterloo Mills, 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 Waterloo Mills, PA 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 Mills, PA 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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