Weather in Saint Johns, MT
Saint Johns, Friday, 16 October, 03:50
Clear. Feels like 31°. High 67°, low 33°.
Monthly outlook for Saint Johns, MT: average high 55.2°, average low 37.8°. That is 1.3° above the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 2 days and 0.4 inches. The warmest day looks like 17 October (72.5°), the coolest 29 October (32.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 16 October – 25 October | 58.7° | 55.2° | +1.9° |
| 26 October – 4 November | 49.4° | 48.2° | +0.6° |
| 5 November – 14 November | at normal | 42.4° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Simpson (13 mi).
0
Saint Johns, Saturday, 17 October
Overcast. High 73°, low 43°.
0
Saint Johns, Sunday, 18 October
Clear. High 60°, low 36°.
0
Saint Johns, Monday, 19 October
Partly cloudy. High 61°, low 39°.
0Saint Johns, Tuesday, 20 October
Overcast. High 58°, low 40°.
0Saint Johns, Wednesday, 21 October
Clear. High 60°, low 36°.
0
Saint Johns, Thursday, 22 October
Mostly clear. High 64°, low 44°.
0.03
Saint Johns, Friday, 23 October
Light rain. High 49°, low 41°.
0Saint Johns, Saturday, 24 October
Partly cloudy. High 45°, low 33°.
0Saint Johns, Sunday, 25 October
Clear. High 50°, low 33°.
0Saint Johns, Monday, 26 October
Overcast. High 49°, low 40°.
0Saint Johns, Tuesday, 27 October
Clear. High 46°, low 34°.
0Saint Johns, Wednesday, 28 October
Overcast. High 41°, low 36°.
0Saint Johns, Thursday, 29 October
Overcast. High 46°, low 32°.
0Saint Johns, Friday, 30 October
Overcast. High 56°, low 35°.
0Saint Johns, Saturday, 31 October
Overcast. High 57°, low 49°.
0.01Saint Johns, Sunday, 1 November
Climate normal for this date — 60-year average.
0.02Saint Johns, Monday, 2 November
Climate normal for this date — 60-year average.
0.02Saint Johns, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.02Saint Johns, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.04Saint Johns, Thursday, 5 November
Climate normal for this date — 60-year average.
0.02Saint 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.
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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