Weather in Sweet Grass, MT
Sweet Grass, Monday, 26 October, 19:13
Overcast. Feels like 29°. High 38°, low 24°.
Monthly outlook for Sweet Grass, MT: average high 44.5°, average low 32.2°. That is 0.4° below the climate normal for October. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 4 days and 0.5 inches. The warmest day looks like 5 November (52.2°), the coolest 26 October (24.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 26 October – 4 November | 41° | 47° | -3.4° |
| 5 November – 14 November | 50.3° | 41.6° | +4.8° |
| 15 November – 24 November | at normal | 37.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Sunburst (8 mi).
0.12
Sweet Grass, Tuesday, 27 October
Light rain. High 44°, low 30°.
0.02
Sweet Grass, Wednesday, 28 October
Light snow. High 40°, low 29°.
0.01Sweet Grass, Thursday, 29 October
Light snow. High 34°, low 27°.
0Sweet Grass, Friday, 30 October
Overcast. High 36°, low 27°.
0
Sweet Grass, Saturday, 31 October
Partly cloudy. High 46°, low 29°.
0.02Sweet Grass, Sunday, 1 November
Light rain. High 43°, low 32°.
0
Sweet Grass, Monday, 2 November
Clear. High 40°, low 30°.
0Sweet Grass, Tuesday, 3 November
Clear. High 44°, low 30°.
0Sweet Grass, Wednesday, 4 November
Overcast. High 43°, low 31°.
0Sweet Grass, Thursday, 5 November
Clear. High 52°, low 35°.
0Sweet Grass, Friday, 6 November
Overcast. High 51°, low 38°.
0Sweet Grass, Saturday, 7 November
Overcast. High 50°, low 42°.
0Sweet Grass, Sunday, 8 November
Overcast. High 49°, low 35°.
0Sweet Grass, Monday, 9 November
Overcast. High 49°, low 38°.
0
Sweet Grass, Tuesday, 10 November
Mostly clear. High 51°, low 36°.
0.02Sweet Grass, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.02Sweet Grass, Thursday, 12 November
Climate normal for this date — 60-year average.
0.01Sweet Grass, Friday, 13 November
Climate normal for this date — 60-year average.
0.02Sweet Grass, Saturday, 14 November
Climate normal for this date — 60-year average.
0.01Sweet Grass, Sunday, 15 November
Climate normal for this date — 60-year average.
0.04Sweet Grass, Monday, 16 November
Climate normal for this date — 60-year average.
0.04Sweet Grass, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.03Sweet Grass, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.02Sweet Grass, Thursday, 19 November
Climate normal for this date — 60-year average.
0.02Sweet Grass, Friday, 20 November
Climate normal for this date — 60-year average.
0.02Sweet Grass, Saturday, 21 November
Climate normal for this date — 60-year average.
0.02Sweet Grass, Sunday, 22 November
Climate normal for this date — 60-year average.
0.02Sweet Grass, Monday, 23 November
Climate normal for this date — 60-year average.
0.04Sweet Grass, Tuesday, 24 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 Sweet Grass, 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 Sweet Grass, 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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