Weather in Saint Johns, ID
Saint Johns, Saturday, 17 October, 14:35
Clear. Feels like 66°. High 67°, low 39°.
Monthly outlook for Saint Johns, ID: average high 57.1°, average low 41.9°. That is 2.1° above the climate normal for October. Precipitation is expected on 6 days (about 1.6 inches), against a normal of 4 days and 0.9 inches. The warmest day looks like 18 October (67.6°), the coolest 1 November (33°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 17 October – 26 October | 61.6° | 55.7° | +3.3° |
| 27 October – 5 November | 49.7° | 48.9° | +0.5° |
| 6 November – 15 November | at normal | 44° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Daniels (13 mi).
0
Saint Johns, Sunday, 18 October
Overcast. High 68°, low 40°.
0Saint Johns, Monday, 19 October
Clear. High 61°, low 40°.
0.04
Saint Johns, Tuesday, 20 October
Light rain. High 61°, low 42°.
0
Saint Johns, Wednesday, 21 October
Partly cloudy. High 64°, low 44°.
0.02Saint Johns, Thursday, 22 October
Light rain. High 62°, low 46°.
0.47Saint Johns, Friday, 23 October
Rain. High 54°, low 45°.
0.23Saint Johns, Saturday, 24 October
Rain. High 56°, low 44°.
0Saint Johns, Sunday, 25 October
Clear. High 60°, low 43°.
0
Saint Johns, Monday, 26 October
Mostly clear. High 64°, low 46°.
0.03Saint Johns, Tuesday, 27 October
Light rain. High 53°, low 48°.
0.37Saint Johns, Wednesday, 28 October
Rain. High 57°, low 48°.
0.2Saint Johns, Thursday, 29 October
Light rain. High 47°, low 41°.
0Saint Johns, Friday, 30 October
Partly cloudy. High 46°, low 36°.
0.24
Saint Johns, Saturday, 31 October
Snow. High 53°, low 35°.
0.03Saint Johns, Sunday, 1 November
Light snow. High 42°, low 33°.
0.05Saint Johns, Monday, 2 November
Climate normal for this date — 60-year average.
0.04Saint Johns, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.04Saint Johns, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.05Saint Johns, Thursday, 5 November
Climate normal for this date — 60-year average.
0.04Saint Johns, Friday, 6 November
Climate normal for this date — 60-year average.
0.08
Saint Johns, Saturday, 7 November
Climate normal for this date — 60-year average.
0.09Saint Johns, Sunday, 8 November
Climate normal for this date — 60-year average.
0.08Saint Johns, Monday, 9 November
Climate normal for this date — 60-year average.
0.05Saint Johns, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.06Saint Johns, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.07Saint Johns, Thursday, 12 November
Climate normal for this date — 60-year average.
0.06Saint Johns, Friday, 13 November
Climate normal for this date — 60-year average.
0.07Saint Johns, Saturday, 14 November
Climate normal for this date — 60-year average.
0.02Saint Johns, 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 Saint Johns, 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 Saint Johns, 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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