Weather in Grantsdale, MT
Grantsdale, Sunday, 15 November, 05:43
Clear. Feels like 36°. High 53°, low 34°.
Monthly outlook for Grantsdale, MT: average high 44.6°, average low 31.2°. That is 3.6° above the climate normal for November. Precipitation is expected on 3 days (about 0.9 inches), against a normal of 6 days and 1.2 inches. The warmest day looks like 15 November (53.2°), the coolest 21 November (23.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 15 November – 24 November | 41.8° | 39.7° | +1.2° |
| 25 November – 4 December | 49.1° | 35.2° | +7.7° |
| 5 December – 14 December | at normal | 32.9° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Corvallis (8 mi).
0.37
Grantsdale, Monday, 16 November
Rain. High 44°, low 32°.
0.49Grantsdale, Tuesday, 17 November
Rain. High 38°, low 34°.
0
Grantsdale, Wednesday, 18 November
Mostly clear. High 38°, low 25°.
0.02
Grantsdale, Thursday, 19 November
Light snow. High 34°, low 26°.
0
Grantsdale, Friday, 20 November
Overcast. High 34°, low 26°.
0
Grantsdale, Saturday, 21 November
Partly cloudy. High 40°, low 24°.
0Grantsdale, Sunday, 22 November
Overcast. High 43°, low 26°.
0Grantsdale, Monday, 23 November
Mostly clear. High 46°, low 31°.
0Grantsdale, Tuesday, 24 November
Overcast. High 48°, low 35°.
0Grantsdale, Wednesday, 25 November
Overcast. High 49°, low 37°.
0.06Grantsdale, Thursday, 26 November
Light rain. High 48°, low 36°.
0Grantsdale, Friday, 27 November
Mostly clear. High 46°, low 32°.
0Grantsdale, Saturday, 28 November
Partly cloudy. High 50°, low 34°.
0
Grantsdale, Sunday, 29 November
Clear. High 50°, low 32°.
0Grantsdale, Monday, 30 November
Clear. High 51°, low 35°.
0.09
Grantsdale, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.14Grantsdale, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.08Grantsdale, Thursday, 3 December
Climate normal for this date — 60-year average.
0.09Grantsdale, Friday, 4 December
Climate normal for this date — 60-year average.
0.06Grantsdale, Saturday, 5 December
Climate normal for this date — 60-year average.
0.08Grantsdale, Sunday, 6 December
Climate normal for this date — 60-year average.
0.07Grantsdale, Monday, 7 December
Climate normal for this date — 60-year average.
0.07Grantsdale, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.07Grantsdale, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.07Grantsdale, Thursday, 10 December
Climate normal for this date — 60-year average.
0.06Grantsdale, Friday, 11 December
Climate normal for this date — 60-year average.
0.06Grantsdale, Saturday, 12 December
Climate normal for this date — 60-year average.
0.09Grantsdale, Sunday, 13 December
Climate normal for this date — 60-year average.
0.07Grantsdale, Monday, 14 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 Grantsdale, 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 Grantsdale, 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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