Weather in Mount Saint John, OH
Mount Saint John, Monday, 19 October, 05:28
Clear. Feels like 39°. High 69°, low 40°.
Monthly outlook for Mount Saint John, OH: average high 61.5°, average low 41.9°. That is 1.1° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 20 October (70.4°), the coolest 30 October (30.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 19 October – 28 October | 65.2° | 60.2° | +2.8° |
| 29 October – 7 November | 55.5° | 56.9° | -0.8° |
| 8 November – 17 November | at normal | 51.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Dayton (7 mi).
0
Mount Saint John, Tuesday, 20 October
Clear. High 70°, low 41°.
0Mount Saint John, Wednesday, 21 October
Clear. High 66°, low 44°.
0Mount Saint John, Thursday, 22 October
Clear. High 65°, low 44°.
0Mount Saint John, Friday, 23 October
Clear. High 61°, low 43°.
0Mount Saint John, Saturday, 24 October
Clear. High 62°, low 41°.
0
Mount Saint John, Sunday, 25 October
Overcast. High 66°, low 49°.
0Mount Saint John, Monday, 26 October
Overcast. High 69°, low 51°.
0Mount Saint John, Tuesday, 27 October
Overcast. High 69°, low 57°.
0.11
Mount Saint John, Wednesday, 28 October
Light rain. High 55°, low 38°.
0
Mount Saint John, Thursday, 29 October
Partly cloudy. High 48°, low 33°.
0Mount Saint John, Friday, 30 October
Clear. High 48°, low 31°.
0Mount Saint John, Saturday, 31 October
Clear. High 53°, low 32°.
0Mount Saint John, Sunday, 1 November
Overcast. High 59°, low 39°.
0Mount Saint John, Monday, 2 November
Overcast. High 61°, low 45°.
0.01Mount Saint John, Tuesday, 3 November
Light rain. High 64°, low 44°.
0.09Mount Saint John, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.08Mount Saint John, Thursday, 5 November
Climate normal for this date — 60-year average.
0.09Mount Saint John, Friday, 6 November
Climate normal for this date — 60-year average.
0.11
Mount Saint John, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04Mount Saint John, Sunday, 8 November
Climate normal for this date — 60-year average.
0.1Mount Saint John, Monday, 9 November
Climate normal for this date — 60-year average.
0.15Mount Saint John, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.13Mount Saint John, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.1Mount Saint John, Thursday, 12 November
Climate normal for this date — 60-year average.
0.06Mount Saint John, Friday, 13 November
Climate normal for this date — 60-year average.
0.09Mount Saint John, Saturday, 14 November
Climate normal for this date — 60-year average.
0.13Mount Saint John, Sunday, 15 November
Climate normal for this date — 60-year average.
0.09Mount Saint John, Monday, 16 November
Climate normal for this date — 60-year average.
0.13Mount Saint John, Tuesday, 17 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 Mount Saint John, OH 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 Mount Saint John, OH 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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