Weather in Calais, MT
Calais, Monday, 12 October, 22:38
Overcast. Feels like 38°. High 40°, low 36°.
Monthly outlook for Calais, MT: average high 58°, average low 41.5°. That is 1.8° above the climate normal for October. Precipitation is expected on 1 day (about 0.5 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 19 October (74.4°), the coolest 14 October (31.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 12 October – 21 October | 58.9° | 56.1° | +1.5° |
| 22 October – 31 October | 56.6° | 51.1° | +3.1° |
| 1 November – 10 November | at normal | 44.3° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Culbertson (14 mi).
0Calais, Tuesday, 13 October
Overcast. High 51°, low 35°.
0
Calais, Wednesday, 14 October
Clear. High 59°, low 31°.
0Calais, Thursday, 15 October
Clear. High 52°, low 35°.
0Calais, Friday, 16 October
Clear. High 64°, low 31°.
0Calais, Saturday, 17 October
Overcast. High 71°, low 40°.
0
Calais, Sunday, 18 October
Partly cloudy. High 60°, low 49°.
0Calais, Monday, 19 October
Clear. High 74°, low 48°.
0Calais, Tuesday, 20 October
Overcast. High 67°, low 53°.
0.01
Calais, Wednesday, 21 October
Light rain. High 51°, low 45°.
0Calais, Thursday, 22 October
Overcast. High 48°, low 41°.
0Calais, Friday, 23 October
Overcast. High 49°, low 36°.
0.01Calais, Saturday, 24 October
Light rain. High 51°, low 39°.
0.01Calais, Sunday, 25 October
Light rain. High 58°, low 44°.
0
Calais, Monday, 26 October
Mostly clear. High 68°, low 48°.
0Calais, Tuesday, 27 October
Mostly clear. High 66°, low 53°.
0.03Calais, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.05Calais, Thursday, 29 October
Climate normal for this date — 60-year average.
0.03Calais, Friday, 30 October
Climate normal for this date — 60-year average.
0.02Calais, Saturday, 31 October
Climate normal for this date — 60-year average.
0.04Calais, Sunday, 1 November
Climate normal for this date — 60-year average.
0.02Calais, Monday, 2 November
Climate normal for this date — 60-year average.
0.02Calais, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.03Calais, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.02Calais, Thursday, 5 November
Climate normal for this date — 60-year average.
0.02Calais, Friday, 6 November
Climate normal for this date — 60-year average.
0.02Calais, Saturday, 7 November
Climate normal for this date — 60-year average.
0.03Calais, Sunday, 8 November
Climate normal for this date — 60-year average.
0.04Calais, Monday, 9 November
Climate normal for this date — 60-year average.
0.04Calais, Tuesday, 10 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 Calais, 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 Calais, 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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