Weather in Saint Charles, OH
Saint Charles, Sunday, 9 August, 04:38
Clear. Feels like 73°. High 90°, low 71°.
Monthly outlook for Saint Charles, OH: average high 86.1°, average low 68.1°. That is 1.9° above the climate normal for August. Precipitation is expected on 3 days (about 1.8 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 23 August (99°), the coolest 15 August (57.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 82.3° | 82.7° | -0.2° |
| 19 August – 28 August | 92.6° | 82.7° | +5.5° |
| 29 August – 7 September | at normal | 80.9° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Brookville (14 mi).
0
Saint Charles, Monday, 10 August
Partly cloudy. High 92°, low 72°.
0.25
Saint Charles, Tuesday, 11 August
Rain. High 91°, low 72°.
0.34Saint Charles, Wednesday, 12 August
Rain. High 87°, low 65°.
0.01Saint Charles, Thursday, 13 August
Light rain. High 81°, low 65°.
1.1Saint Charles, Friday, 14 August
Heavy rain. High 70°, low 62°.
0
Saint Charles, Saturday, 15 August
Overcast. High 72°, low 57°.
0.03Saint Charles, Sunday, 16 August
Light rain. High 79°, low 60°.
0.03Saint Charles, Monday, 17 August
Light rain. High 80°, low 65°.
0
Saint Charles, Tuesday, 18 August
Clear. High 81°, low 64°.
0Saint Charles, Wednesday, 19 August
Clear. High 87°, low 65°.
0Saint Charles, Thursday, 20 August
Light rain. High 96°, low 70°.
0Saint Charles, Friday, 21 August
Partly cloudy. High 92°, low 75°.
0
Saint Charles, Saturday, 22 August
Mostly clear. High 94°, low 73°.
0Saint Charles, Sunday, 23 August
Partly cloudy. High 99°, low 77°.
0.03Saint Charles, Monday, 24 August
Light rain. High 87°, low 77°.
0.06Saint Charles, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.09Saint Charles, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.1
Saint Charles, Thursday, 27 August
Climate normal for this date — 60-year average.
0.16Saint Charles, Friday, 28 August
Climate normal for this date — 60-year average.
0.12Saint Charles, Saturday, 29 August
Climate normal for this date — 60-year average.
0.13Saint Charles, Sunday, 30 August
Climate normal for this date — 60-year average.
0.07Saint Charles, Monday, 31 August
Climate normal for this date — 60-year average.
0.08Saint Charles, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.11Saint Charles, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.11Saint Charles, Thursday, 3 September
Climate normal for this date — 60-year average.
0.06Saint Charles, Friday, 4 September
Climate normal for this date — 60-year average.
0.08Saint Charles, Saturday, 5 September
Climate normal for this date — 60-year average.
0.04Saint Charles, Sunday, 6 September
Climate normal for this date — 60-year average.
0.05Saint Charles, 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 Saint Charles, 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 Saint Charles, 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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