Weather in Bonny Brook, PA
Bonny Brook, Sunday, 9 August, 05:04
Partly cloudy. Feels like 71°. High 86°, low 70°.
Monthly outlook for Bonny Brook, PA: average high 86.8°, average low 64.2°. That is 2.6° above the climate normal for August. Precipitation is expected on 5 days (about 1.6 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 23 August (100.6°), the coolest 16 August (53.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 83.1° | 82.8° | +0.1° |
| 19 August – 28 August | 92.9° | 81.6° | +6.3° |
| 29 August – 7 September | at normal | 80.1° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Messiah College (11 mi).
0.07
Bonny Brook, Monday, 10 August
Light rain. High 87°, low 69°.
0.43Bonny Brook, Tuesday, 11 August
Heavy rain. High 89°, low 67°.
0.02Bonny Brook, Wednesday, 12 August
Light rain. High 87°, low 67°.
0.26Bonny Brook, Thursday, 13 August
Rain. High 82°, low 65°.
0
Bonny Brook, Friday, 14 August
Overcast. High 78°, low 58°.
0
Bonny Brook, Saturday, 15 August
Clear. High 78°, low 54°.
0Bonny Brook, Sunday, 16 August
Overcast. High 78°, low 54°.
0Bonny Brook, Monday, 17 August
Overcast. High 80°, low 57°.
0
Bonny Brook, Tuesday, 18 August
Partly cloudy. High 86°, low 61°.
0Bonny Brook, Wednesday, 19 August
Partly cloudy. High 86°, low 64°.
0Bonny Brook, Thursday, 20 August
Partly cloudy. High 93°, low 63°.
0.27Bonny Brook, Friday, 21 August
Light rain. High 100°, low 67°.
0Bonny Brook, Saturday, 22 August
Clear. High 94°, low 72°.
0.01Bonny Brook, Sunday, 23 August
Light rain. High 101°, low 68°.
0.57Bonny Brook, Monday, 24 August
Rain. High 84°, low 71°.
0.05Bonny Brook, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.05Bonny Brook, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.15
Bonny Brook, Thursday, 27 August
Climate normal for this date — 60-year average.
0.17Bonny Brook, Friday, 28 August
Climate normal for this date — 60-year average.
0.09Bonny Brook, Saturday, 29 August
Climate normal for this date — 60-year average.
0.06Bonny Brook, Sunday, 30 August
Climate normal for this date — 60-year average.
0.08Bonny Brook, Monday, 31 August
Climate normal for this date — 60-year average.
0.12Bonny Brook, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.12Bonny Brook, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.06Bonny Brook, Thursday, 3 September
Climate normal for this date — 60-year average.
0.11Bonny Brook, Friday, 4 September
Climate normal for this date — 60-year average.
0.07Bonny Brook, Saturday, 5 September
Climate normal for this date — 60-year average.
0.18Bonny Brook, Sunday, 6 September
Climate normal for this date — 60-year average.
0.11Bonny Brook, 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 Bonny Brook, 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 Bonny Brook, 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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