Weather in St. Charles, ID
St. Charles, Saturday, 17 October, 11:25
Clear. Feels like 52°. High 67°, low 36°.
Monthly outlook for St. Charles, ID: average high 49.4°, average low 34.3°. That is 0.7° below the climate normal for October. Precipitation is expected on 9 days (about 2.9 inches), against a normal of 5 days and 1.1 inches. The warmest day looks like 17 October (66.6°), the coolest 31 October (22.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 17 October – 26 October | 55.1° | 53° | +1.1° |
| 27 October – 5 November | 39.9° | 46.3° | -3.6° |
| 6 November – 15 November | at normal | 41.8° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Garden City (12 mi).
0St. Charles, Sunday, 18 October
Clear. High 64°, low 40°.
0
St. Charles, Monday, 19 October
Overcast. High 57°, low 37°.
0.28
St. Charles, Tuesday, 20 October
Rain. High 58°, low 40°.
0.39St. Charles, Wednesday, 21 October
Rain. High 58°, low 41°.
0.04St. Charles, Thursday, 22 October
Light rain. High 59°, low 42°.
1.57St. Charles, Friday, 23 October
Rain. High 45°, low 41°.
0.06
St. Charles, Saturday, 24 October
Light snow. High 48°, low 38°.
0.16St. Charles, Sunday, 25 October
Snow. High 55°, low 35°.
0.01St. Charles, Monday, 26 October
Light rain. High 40°, low 30°.
0.08St. Charles, Tuesday, 27 October
Snow. High 47°, low 34°.
0.03St. Charles, Wednesday, 28 October
Light snow. High 43°, low 27°.
0St. Charles, Thursday, 29 October
Overcast. High 45°, low 35°.
0.2St. Charles, Friday, 30 October
Light snow. High 35°, low 26°.
0St. Charles, Saturday, 31 October
Overcast. High 34°, low 22°.
0.07St. Charles, Sunday, 1 November
Light snow. High 35°, low 26°.
0.06
St. Charles, Monday, 2 November
Climate normal for this date — 60-year average.
0.05
St. Charles, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.06St. Charles, Wednesday, 4 November
Climate normal for this date — 60-year average.
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.
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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