Weather in Sweet Grass, MT
Sweet Grass, Friday, 13 November, 07:38
Overcast. Feels like 23°. High 52°, low 30°.
Monthly outlook for Sweet Grass, MT: average high 37.2°, average low 26.1°. That is 0° below the climate normal for November. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 3 days and 0.4 inches. The warmest day looks like 14 November (54.1°), the coolest 23 November (9.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 13 November – 22 November | 40° | 38.9° | +0.6° |
| 23 November – 2 December | 32.5° | 33.7° | -0.7° |
| 3 December – 12 December | at normal | 31.6° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Sunburst (8 mi).
0
Sweet Grass, Saturday, 14 November
Clear. High 54°, low 31°.
0Sweet Grass, Sunday, 15 November
Overcast. High 53°, low 36°.
0Sweet Grass, Monday, 16 November
Overcast. High 52°, low 39°.
0.01
Sweet Grass, Tuesday, 17 November
Light snow. High 41°, low 33°.
0.07Sweet Grass, Wednesday, 18 November
Light snow. High 33°, low 30°.
0.02Sweet Grass, Thursday, 19 November
Light snow. High 36°, low 30°.
0.01Sweet Grass, Friday, 20 November
Light snow. High 35°, low 28°.
0.06Sweet Grass, Saturday, 21 November
Light snow. High 29°, low 16°.
0
Sweet Grass, Sunday, 22 November
Mostly clear. High 16°, low 10°.
0Sweet Grass, Monday, 23 November
Clear. High 23°, low 10°.
0
Sweet Grass, Tuesday, 24 November
Partly cloudy. High 23°, low 18°.
0Sweet Grass, Wednesday, 25 November
Overcast. High 36°, low 19°.
0Sweet Grass, Thursday, 26 November
Partly cloudy. High 39°, low 28°.
0.01Sweet Grass, Friday, 27 November
Light snow. High 38°, low 29°.
0Sweet Grass, Saturday, 28 November
Overcast. High 37°, low 30°.
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.
0.02Sweet Grass, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.02Sweet Grass, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.03Sweet Grass, Thursday, 10 December
Climate normal for this date — 60-year average.
0.03Sweet Grass, Friday, 11 December
Climate normal for this date — 60-year average.
0.04Sweet Grass, Saturday, 12 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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