Weather in Glengarry, MT
Glengarry, Saturday, 10 October, 23:36
Light snow. Feels like 29°. High 55°, low 34°.
Monthly outlook for Glengarry, MT: average high 56.7°, average low 38.6°. That is 0.9° above the climate normal for October. Precipitation is expected on 3 days (about 1.5 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 19 October (72.4°), the coolest 12 October (22.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 10 October – 19 October | 53.6° | 55.5° | -1.1° |
| 20 October – 29 October | 62° | 52.8° | +5.1° |
| 30 October – 8 November | at normal | 46.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Lewistown (5 mi).
0.63Glengarry, Sunday, 11 October
Snow. High 35°, low 32°.
0.37Glengarry, Monday, 12 October
Snow. High 32°, low 23°.
0
Glengarry, Tuesday, 13 October
Mostly clear. High 40°, low 23°.
0
Glengarry, Wednesday, 14 October
Clear. High 49°, low 29°.
0Glengarry, Thursday, 15 October
Clear. High 53°, low 33°.
0Glengarry, Friday, 16 October
Clear. High 57°, low 33°.
0
Glengarry, Saturday, 17 October
Overcast. High 70°, low 38°.
0Glengarry, Sunday, 18 October
Overcast. High 71°, low 51°.
0Glengarry, Monday, 19 October
Mostly clear. High 72°, low 54°.
0Glengarry, Tuesday, 20 October
Overcast. High 61°, low 48°.
0Glengarry, Wednesday, 21 October
Overcast. High 57°, low 39°.
0
Glengarry, Thursday, 22 October
Partly cloudy. High 58°, low 44°.
0Glengarry, Friday, 23 October
Partly cloudy. High 63°, low 43°.
0Glengarry, Saturday, 24 October
Clear. High 63°, low 43°.
0Glengarry, Sunday, 25 October
Overcast. High 70°, low 50°.
0.06Glengarry, Monday, 26 October
Climate normal for this date — 60-year average.
0.05Glengarry, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.06Glengarry, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.04Glengarry, Thursday, 29 October
Climate normal for this date — 60-year average.
0.04Glengarry, Friday, 30 October
Climate normal for this date — 60-year average.
0.05Glengarry, Saturday, 31 October
Climate normal for this date — 60-year average.
0.03Glengarry, Sunday, 1 November
Climate normal for this date — 60-year average.
0.02Glengarry, Monday, 2 November
Climate normal for this date — 60-year average.
0.05Glengarry, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.05Glengarry, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.07Glengarry, Thursday, 5 November
Climate normal for this date — 60-year average.
0.03Glengarry, Friday, 6 November
Climate normal for this date — 60-year average.
0.02Glengarry, Saturday, 7 November
Climate normal for this date — 60-year average.
0.06Glengarry, Sunday, 8 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 Glengarry, 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 Glengarry, 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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