Weather in Saint Johns, MT
Saint Johns, Wednesday, 21 October, 21:58
Clear. Feels like 50°. High 70°, low 36°.
Monthly outlook for Saint Johns, MT: average high 52.3°, average low 34.8°. That is 1.4° above the climate normal for October. Precipitation is expected on 1 day (about 0.3 inches), against a normal of 2 days and 0.4 inches. The warmest day looks like 22 October (70.9°), the coolest 24 October (27.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 21 October – 30 October | 52.2° | 51.7° | +0.3° |
| 31 October – 9 November | 52.4° | 45.3° | +4° |
| 10 November – 19 November | at normal | 40.6° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Simpson (13 mi).
0
Saint Johns, Thursday, 22 October
Clear. High 71°, low 38°.
0.26
Saint Johns, Friday, 23 October
Rain. High 51°, low 37°.
0Saint Johns, Saturday, 24 October
Clear. High 45°, low 28°.
0
Saint Johns, Sunday, 25 October
Overcast. High 44°, low 31°.
0Saint Johns, Monday, 26 October
Overcast. High 44°, low 32°.
0Saint Johns, Tuesday, 27 October
Overcast. High 37°, low 29°.
0
Saint Johns, Wednesday, 28 October
Partly cloudy. High 45°, low 30°.
0Saint Johns, Thursday, 29 October
Overcast. High 61°, low 36°.
0Saint Johns, Friday, 30 October
Clear. High 54°, low 46°.
0Saint Johns, Saturday, 31 October
Partly cloudy. High 50°, low 35°.
0Saint Johns, Sunday, 1 November
Overcast. High 43°, low 34°.
0Saint Johns, Monday, 2 November
Overcast. High 45°, low 33°.
0Saint Johns, Tuesday, 3 November
Overcast. High 58°, low 35°.
0.02Saint Johns, Wednesday, 4 November
Light rain. High 56°, low 39°.
0.02Saint Johns, Thursday, 5 November
Light rain. High 62°, low 36°.
0.02
Saint Johns, Friday, 6 November
Climate normal for this date — 60-year average.
0.03Saint Johns, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04Saint Johns, Sunday, 8 November
Climate normal for this date — 60-year average.
0.04Saint Johns, Monday, 9 November
Climate normal for this date — 60-year average.
0.04Saint Johns, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.02Saint Johns, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.02Saint Johns, Thursday, 12 November
Climate normal for this date — 60-year average.
0.02Saint Johns, Friday, 13 November
Climate normal for this date — 60-year average.
0.02Saint Johns, Saturday, 14 November
Climate normal for this date — 60-year average.
0.01Saint Johns, Sunday, 15 November
Climate normal for this date — 60-year average.
0.03Saint Johns, Monday, 16 November
Climate normal for this date — 60-year average.
0.04Saint Johns, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.02Saint Johns, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.02Saint Johns, Thursday, 19 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, MT 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, MT 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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