Weather in Sweet Grass, MT
Sweet Grass, Sunday, 8 November, 13:17
Overcast. Feels like 51°. High 57°, low 38°.
Monthly outlook for Sweet Grass, MT: average high 50.7°, average low 36.1°. That is 6.4° above the climate normal for November. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 3 days and 0.4 inches. The warmest day looks like 11 November (62.2°), the coolest 20 November (24.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 November – 17 November | 56.3° | 40.8° | +8.6° |
| 18 November – 27 November | 41.5° | 35.5° | +3.3° |
| 28 November – 7 December | at normal | 32.1° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Sunburst (8 mi).
0Sweet Grass, Monday, 9 November
Overcast. High 51°, low 31°.
0
Sweet Grass, Tuesday, 10 November
Mostly clear. High 53°, low 38°.
0Sweet Grass, Wednesday, 11 November
Overcast. High 62°, low 42°.
0Sweet Grass, Thursday, 12 November
Overcast. High 58°, low 47°.
0Sweet Grass, Friday, 13 November
Overcast. High 61°, low 44°.
0Sweet Grass, Saturday, 14 November
Overcast. High 59°, low 47°.
0
Sweet Grass, Sunday, 15 November
Partly cloudy. High 61°, low 44°.
0Sweet Grass, Monday, 16 November
Overcast. High 57°, low 37°.
0Sweet Grass, Tuesday, 17 November
Overcast. High 42°, low 33°.
0.01
Sweet Grass, Wednesday, 18 November
Light snow. High 39°, low 31°.
0.19Sweet Grass, Thursday, 19 November
Snow. High 34°, low 29°.
0
Sweet Grass, Friday, 20 November
Clear. High 41°, low 24°.
0Sweet Grass, Saturday, 21 November
Partly cloudy. High 45°, low 28°.
0Sweet Grass, Sunday, 22 November
Partly cloudy. High 50°, low 36°.
0Sweet Grass, Monday, 23 November
Clear. High 40°, low 29°.
0.04Sweet Grass, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.05Sweet Grass, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.04Sweet Grass, Thursday, 26 November
Climate normal for this date — 60-year average.
0.03Sweet Grass, Friday, 27 November
Climate normal for this date — 60-year average.
0.04Sweet Grass, Saturday, 28 November
Climate normal for this date — 60-year average.
0.02Sweet Grass, Sunday, 29 November
Climate normal for this date — 60-year average.
0.02Sweet Grass, Monday, 30 November
Climate normal for this date — 60-year average.
0.02Sweet Grass, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.04Sweet Grass, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.02Sweet Grass, Thursday, 3 December
Climate normal for this date — 60-year average.
0.02Sweet Grass, Friday, 4 December
Climate normal for this date — 60-year average.
0.03Sweet Grass, Saturday, 5 December
Climate normal for this date — 60-year average.
0.03Sweet Grass, Sunday, 6 December
Climate normal for this date — 60-year average.
0.01Sweet Grass, Monday, 7 December
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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