Weather in Grass Valley, MT
Grass Valley, Saturday, 14 November, 21:59
Mostly clear. Feels like 35°. High 44°, low 34°.
Monthly outlook for Grass Valley, MT: average high 41.5°, average low 29.4°. That is 4.8° above the climate normal for November. Precipitation is expected on 7 days (about 1.0 inches), against a normal of 7 days and 1.3 inches. The warmest day looks like 23 November (44.8°), the coolest 15 November (26°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 14 November – 23 November | 41.5° | 34.5° | +3.9° |
| 24 November – 3 December | 41.6° | 30.1° | +6.4° |
| 4 December – 13 December | at normal | 27.4° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Evaro (11 mi).
0.01
Grass Valley, Sunday, 15 November
Light rain. High 42°, low 26°.
0.13
Grass Valley, Monday, 16 November
Snow. High 44°, low 28°.
0.35Grass Valley, Tuesday, 17 November
Snow. High 37°, low 31°.
0Grass Valley, Wednesday, 18 November
Light snow. High 38°, low 27°.
0
Grass Valley, Thursday, 19 November
Overcast. High 40°, low 26°.
0Grass Valley, Friday, 20 November
Overcast. High 41°, low 26°.
0Grass Valley, Saturday, 21 November
Overcast. High 42°, low 28°.
0Grass Valley, Sunday, 22 November
Overcast. High 42°, low 29°.
0Grass Valley, Monday, 23 November
Light rain. High 45°, low 30°.
0.06Grass Valley, Tuesday, 24 November
Light snow. High 44°, low 30°.
0.05Grass Valley, Wednesday, 25 November
Snow. High 43°, low 29°.
0.02Grass Valley, Thursday, 26 November
Snow. High 41°, low 28°.
0Grass Valley, Friday, 27 November
Overcast. High 38°, low 28°.
0.06Grass Valley, Saturday, 28 November
Light snow. High 40°, low 32°.
0.27Grass Valley, Sunday, 29 November
Light rain. High 44°, low 37°.
0.07
Grass Valley, Monday, 30 November
Climate normal for this date — 60-year average.
0.1Grass Valley, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.15Grass Valley, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.08Grass Valley, Thursday, 3 December
Climate normal for this date — 60-year average.
0.08Grass Valley, Friday, 4 December
Climate normal for this date — 60-year average.
0.07Grass Valley, Saturday, 5 December
Climate normal for this date — 60-year average.
0.09Grass Valley, Sunday, 6 December
Climate normal for this date — 60-year average.
0.07Grass Valley, Monday, 7 December
Climate normal for this date — 60-year average.
0.07Grass Valley, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.07Grass Valley, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.09Grass Valley, Thursday, 10 December
Climate normal for this date — 60-year average.
0.06Grass Valley, Friday, 11 December
Climate normal for this date — 60-year average.
0.09Grass Valley, Saturday, 12 December
Climate normal for this date — 60-year average.
0.08Grass Valley, Sunday, 13 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 Grass Valley, 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 Grass Valley, 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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