Weather in St. Charles, MD
St. Charles, Tuesday, 20 October, 05:18
Clear. Feels like 49°. High 70°, low 46°.
Monthly outlook for St. Charles, MD: average high 59.8°, average low 41.7°. That is 1.9° below the climate normal for October. Precipitation is expected on 2 days (about 2.2 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 27 October (71.1°), the coolest 29 October (34.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 63° | 63.8° | -0.4° |
| 30 October – 8 November | 54.5° | 61° | -3.6° |
| 9 November – 18 November | at normal | 56.2° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Hybla Valley (13 mi).
0
St. Charles, Wednesday, 21 October
Clear. High 66°, low 43°.
0St. Charles, Thursday, 22 October
Clear. High 66°, low 43°.
0
St. Charles, Friday, 23 October
Partly cloudy. High 57°, low 44°.
0St. Charles, Saturday, 24 October
Clear. High 59°, low 39°.
0St. Charles, Sunday, 25 October
Clear. High 64°, low 36°.
0St. Charles, Monday, 26 October
Partly cloudy. High 69°, low 44°.
0
St. Charles, Tuesday, 27 October
Overcast. High 71°, low 49°.
0St. Charles, Wednesday, 28 October
Overcast. High 55°, low 39°.
0St. Charles, Thursday, 29 October
Clear. High 54°, low 35°.
0St. Charles, Friday, 30 October
Overcast. High 58°, low 36°.
0.02
St. Charles, Saturday, 31 October
Light rain. High 55°, low 45°.
0St. Charles, Sunday, 1 November
Clear. High 61°, low 43°.
0.03St. Charles, Monday, 2 November
Light rain. High 53°, low 38°.
0.62St. Charles, Tuesday, 3 November
Rain. High 51°, low 44°.
1.54St. Charles, Wednesday, 4 November
Heavy rain. High 50°, low 43°.
0.09St. Charles, Thursday, 5 November
Climate normal for this date — 60-year average.
0.07St. Charles, Friday, 6 November
Climate normal for this date — 60-year average.
0.09St. Charles, Saturday, 7 November
Climate normal for this date — 60-year average.
0.15St. Charles, Sunday, 8 November
Climate normal for this date — 60-year average.
0.07St. Charles, Monday, 9 November
Climate normal for this date — 60-year average.
0.13St. Charles, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.2St. Charles, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.22
St. Charles, Thursday, 12 November
Climate normal for this date — 60-year average.
0.1St. Charles, Friday, 13 November
Climate normal for this date — 60-year average.
0.06
St. Charles, Saturday, 14 November
Climate normal for this date — 60-year average.
0.1St. Charles, Sunday, 15 November
Climate normal for this date — 60-year average.
0.11St. Charles, Monday, 16 November
Climate normal for this date — 60-year average.
0.08St. Charles, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.06St. Charles, Wednesday, 18 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 St. Charles, 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 St. Charles, 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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