Weather in Casto, ID
Casto, Friday, 9 October, 19:49
Overcast. Feels like 49°. High 66°, low 33°.
Monthly outlook for Casto, ID: average high 46.7°, average low 25.9°. That is 3.6° below the climate normal for October. Precipitation is expected on 5 days (about 1.1 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 9 October (66.3°), the coolest 23 October (15.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 October – 18 October | 49.9° | 54.1° | -2.4° |
| 19 October – 28 October | 41.3° | 50.2° | -4.9° |
| 29 October – 7 November | at normal | 44.3° | — |
October records over 66 years
0.11
Casto, Saturday, 10 October
Rain. High 49°, low 28°.
0.51
Casto, Sunday, 11 October
Snow. High 37°, low 24°.
0.04Casto, Monday, 12 October
Snow. High 33°, low 26°.
0
Casto, Tuesday, 13 October
Clear. High 43°, low 22°.
0Casto, Wednesday, 14 October
Clear. High 47°, low 24°.
0
Casto, Thursday, 15 October
Mostly clear. High 48°, low 27°.
0Casto, Friday, 16 October
Clear. High 56°, low 30°.
0Casto, Saturday, 17 October
Overcast. High 60°, low 35°.
0
Casto, Sunday, 18 October
Partly cloudy. High 59°, low 36°.
0Casto, Monday, 19 October
Partly cloudy. High 47°, low 31°.
0.12Casto, Tuesday, 20 October
Light snow. High 36°, low 26°.
0.01Casto, Wednesday, 21 October
Light snow. High 44°, low 19°.
0.26Casto, Thursday, 22 October
Snow. High 34°, low 17°.
0Casto, Friday, 23 October
Partly cloudy. High 40°, low 15°.
0Casto, Saturday, 24 October
Overcast. High 46°, low 21°.
0.08
Casto, Sunday, 25 October
Climate normal for this date — 60-year average.
0.07Casto, Monday, 26 October
Climate normal for this date — 60-year average.
0.04Casto, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.09Casto, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.06Casto, Thursday, 29 October
Climate normal for this date — 60-year average.
0.05Casto, Friday, 30 October
Climate normal for this date — 60-year average.
0.05Casto, Saturday, 31 October
Climate normal for this date — 60-year average.
0.06Casto, Sunday, 1 November
Climate normal for this date — 60-year average.
0.07Casto, Monday, 2 November
Climate normal for this date — 60-year average.
0.05Casto, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.07Casto, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.07Casto, Thursday, 5 November
Climate normal for this date — 60-year average.
0.09Casto, Friday, 6 November
Climate normal for this date — 60-year average.
0.08Casto, Saturday, 7 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 Casto, 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 Casto, 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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