Weather in Glengarry, MT
Glengarry, Thursday, 8 October, 15:56
Mostly clear. Feels like 73°. High 74°, low 41°.
Monthly outlook for Glengarry, MT: average high 55.1°, average low 36.4°. That is 0.4° below the climate normal for October. Precipitation is expected on 4 days (about 1.1 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 9 October (79.4°), the coolest 16 October (15°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 October – 17 October | 50.4° | 56.1° | -3.2° |
| 18 October – 27 October | 63.1° | 54.1° | +5° |
| 28 October – 6 November | at normal | 47.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Lewistown (5 mi).
0
Glengarry, Friday, 9 October
Overcast. High 79°, low 49°.
0.08
Glengarry, Saturday, 10 October
Snow. High 55°, low 34°.
0.39Glengarry, Sunday, 11 October
Snow. High 36°, low 33°.
0.03
Glengarry, Monday, 12 October
Light rain. High 41°, low 32°.
0
Glengarry, Tuesday, 13 October
Clear. High 55°, low 31°.
0.08Glengarry, Wednesday, 14 October
Snow. High 49°, low 35°.
0.54Glengarry, Thursday, 15 October
Snow. High 35°, low 24°.
0Glengarry, Friday, 16 October
Clear. High 35°, low 15°.
0Glengarry, Saturday, 17 October
Clear. High 45°, low 26°.
0Glengarry, Sunday, 18 October
Clear. High 65°, low 38°.
0Glengarry, Monday, 19 October
Overcast. High 51°, low 42°.
0Glengarry, Tuesday, 20 October
Clear. High 62°, low 40°.
0Glengarry, Wednesday, 21 October
Overcast. High 64°, low 47°.
0Glengarry, Thursday, 22 October
Clear. High 68°, low 47°.
0
Glengarry, Friday, 23 October
Partly cloudy. High 68°, low 48°.
0.05Glengarry, Saturday, 24 October
Climate normal for this date — 60-year average.
0.04Glengarry, Sunday, 25 October
Climate normal for this date — 60-year average.
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.
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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