Weather in St. Charles, ID
St. Charles, Tuesday, 20 October, 02:44
Partly cloudy. Feels like 48°. High 63°, low 42°.
Monthly outlook for St. Charles, ID: average high 53.9°, average low 39.4°. That is 2.8° above the climate normal for October. Precipitation is expected on 5 days (about 1.8 inches), against a normal of 5 days and 1.1 inches. The warmest day looks like 21 October (65.3°), the coolest 25 October (32.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 54.6° | 51.1° | +2° |
| 30 October – 8 November | 52.7° | 45° | +4.3° |
| 9 November – 18 November | at normal | 40.3° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Garden City (12 mi).
0.11
St. Charles, Wednesday, 21 October
Rain. High 65°, low 38°.
0.04St. Charles, Thursday, 22 October
Light rain. High 58°, low 42°.
0.76St. Charles, Friday, 23 October
Rain. High 51°, low 38°.
0.01St. Charles, Saturday, 24 October
Light rain. High 46°, low 36°.
0
St. Charles, Sunday, 25 October
Clear. High 51°, low 32°.
0St. Charles, Monday, 26 October
Clear. High 56°, low 40°.
0
St. Charles, Tuesday, 27 October
Partly cloudy. High 49°, low 38°.
0St. Charles, Wednesday, 28 October
Clear. High 53°, low 34°.
0.09St. Charles, Thursday, 29 October
Light rain. High 54°, low 43°.
0
St. Charles, Friday, 30 October
Mostly clear. High 55°, low 41°.
0.5St. Charles, Saturday, 31 October
Rain. High 46°, low 41°.
0
St. Charles, Sunday, 1 November
Overcast. High 50°, low 38°.
0St. Charles, Monday, 2 November
Clear. High 54°, low 39°.
0St. Charles, Tuesday, 3 November
Mostly clear. High 59°, low 41°.
0.02St. Charles, Wednesday, 4 November
Light rain. High 53°, low 46°.
0.08
St. Charles, Thursday, 5 November
Climate normal for this date — 60-year average.
0.05St. 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.
0.11St. Charles, Sunday, 8 November
Climate normal for this date — 60-year average.
0.11St. Charles, Monday, 9 November
Climate normal for this date — 60-year average.
0.07St. Charles, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.07St. Charles, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.09St. Charles, Thursday, 12 November
Climate normal for this date — 60-year average.
0.07St. Charles, Friday, 13 November
Climate normal for this date — 60-year average.
0.11St. Charles, Saturday, 14 November
Climate normal for this date — 60-year average.
0.04St. Charles, Sunday, 15 November
Climate normal for this date — 60-year average.
0.06St. Charles, Monday, 16 November
Climate normal for this date — 60-year average.
0.11St. Charles, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.11St. 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, ID 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, ID 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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