Weather in Grass Valley, OR
Grass Valley, Thursday, 22 October, 18:26
Overcast. Feels like 48°. High 52°, low 36°.
Monthly outlook for Grass Valley, OR: average high 49.4°, average low 34.9°. That is 2.1° below the climate normal for October. Precipitation is expected on 4 days (about 1.5 inches), against a normal of 5 days and 1.0 inches. The warmest day looks like 25 October (61°), the coolest 24 October (26.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 22 October – 31 October | 49.6° | 54.4° | -2.7° |
| 1 November – 10 November | 49.1° | 50° | -0.5° |
| 11 November – 20 November | at normal | 46.2° | — |
October records over 66 years
0
Grass Valley, Friday, 23 October
Mostly clear. High 51°, low 31°.
0Grass Valley, Saturday, 24 October
Overcast. High 59°, low 26°.
0Grass Valley, Sunday, 25 October
Overcast. High 61°, low 41°.
0.05
Grass Valley, Monday, 26 October
Light rain. High 51°, low 41°.
0
Grass Valley, Tuesday, 27 October
Partly cloudy. High 54°, low 36°.
0.18Grass Valley, Wednesday, 28 October
Rain. High 49°, low 36°.
1.23
Grass Valley, Thursday, 29 October
Snow. High 33°, low 31°.
0.04Grass Valley, Friday, 30 October
Snow. High 39°, low 34°.
0Grass Valley, Saturday, 31 October
Overcast. High 46°, low 34°.
0Grass Valley, Sunday, 1 November
Partly cloudy. High 47°, low 35°.
0
Grass Valley, Monday, 2 November
Clear. High 47°, low 34°.
0Grass Valley, Tuesday, 3 November
Mostly clear. High 47°, low 35°.
0Grass Valley, Wednesday, 4 November
Mostly clear. High 49°, low 35°.
0Grass Valley, Thursday, 5 November
Partly cloudy. High 50°, low 36°.
0Grass Valley, Friday, 6 November
Mostly clear. High 55°, low 38°.
0.1
Grass Valley, Saturday, 7 November
Climate normal for this date — 60-year average.
0.07Grass Valley, Sunday, 8 November
Climate normal for this date — 60-year average.
0.06Grass Valley, Monday, 9 November
Climate normal for this date — 60-year average.
0.07Grass Valley, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.08Grass Valley, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.07Grass Valley, Thursday, 12 November
Climate normal for this date — 60-year average.
0.09Grass Valley, Friday, 13 November
Climate normal for this date — 60-year average.
0.04Grass Valley, Saturday, 14 November
Climate normal for this date — 60-year average.
0.06Grass Valley, Sunday, 15 November
Climate normal for this date — 60-year average.
0.07Grass Valley, Monday, 16 November
Climate normal for this date — 60-year average.
0.08Grass Valley, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.09Grass Valley, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.11Grass Valley, Thursday, 19 November
Climate normal for this date — 60-year average.
0.09Grass Valley, Friday, 20 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 Grass Valley, OR 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, OR 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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