Weather in Saint Johns, MT
Saint Johns, Friday, 23 October, 00:11
Clear. Feels like 50°. High 52°, low 29°.
Monthly outlook for Saint Johns, MT: average high 42.2°, average low 30.1°. That is 3.5° below the climate normal for October. Precipitation is expected on 5 days (about 1.2 inches), against a normal of 2 days and 0.4 inches. The warmest day looks like 6 November (53.7°), the coolest 24 October (20.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 23 October – 1 November | 41.2° | 50.1° | -4.9° |
| 2 November – 11 November | 44° | 44° | -0° |
| 12 November – 21 November | at normal | 40° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Simpson (13 mi).
0
Saint Johns, Saturday, 24 October
Partly cloudy. High 45°, low 21°.
0
Saint Johns, Sunday, 25 October
Mostly clear. High 45°, low 28°.
0
Saint Johns, Monday, 26 October
Overcast. High 48°, low 33°.
0Saint Johns, Tuesday, 27 October
Overcast. High 42°, low 39°.
0.06
Saint Johns, Wednesday, 28 October
Snow. High 37°, low 30°.
0Saint Johns, Thursday, 29 October
Partly cloudy. High 35°, low 26°.
0.06Saint Johns, Friday, 30 October
Light snow. High 39°, low 27°.
0.56Saint Johns, Saturday, 31 October
Snow. High 34°, low 32°.
0.13Saint Johns, Sunday, 1 November
Light snow. High 35°, low 25°.
0
Saint Johns, Monday, 2 November
Clear. High 35°, low 25°.
0Saint Johns, Tuesday, 3 November
Partly cloudy. High 37°, low 26°.
0Saint Johns, Wednesday, 4 November
Overcast. High 42°, low 29°.
0Saint Johns, Thursday, 5 November
Clear. High 49°, low 35°.
0Saint Johns, Friday, 6 November
Clear. High 54°, low 37°.
0Saint Johns, Saturday, 7 November
Overcast. High 46°, low 39°.
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.
0.02Saint Johns, Friday, 20 November
Climate normal for this date — 60-year average.
0.03Saint Johns, Saturday, 21 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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