Monthly outlook for Grass Valley, OR: average high 54.7°, average low 39.9°. That is 1.2° above the climate normal for October. Precipitation is expected on 4 days (about 1.6 inches), against a normal of 5 days and 1.1 inches. The warmest day looks like 7 November (64°), the coolest 24 October (30.1°).
54.7°/39.9°
Average high / low
+1.2°
Above normal
4 / 5
Wet days / normal
1.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
23 October – 1 November
53.9°
53.7°
+0.1°
2 November – 11 November
56°
49.8°
+3.5°
12 November – 21 November
at normal
45.6°
—
October records over 66 years
88°2 October 1975All-time high
17.4°30 October 2019All-time low
Sat, 2455° / 30°0
55 °
Grass Valley, Saturday, 24 October
Mostly clear. High 55°, low 30°.
Pressure30.18 inHg
Wind2.1 mph S
Humidity46%
Visibility6.2 mi
Dew point31°
Sun, 2556° / 40°0
56 °
Grass Valley, Sunday, 25 October
Overcast. High 56°, low 40°.
Pressure30.03 inHg
Wind2.3 mph NE
Humidity46%
Visibility6.2 mi
Dew point34°
Mon, 2653° / 41°0.18
53 °
Grass Valley, Monday, 26 October
Rain. High 53°, low 41°.
Pressure29.97 inHg
Wind3.9 mph NW
Humidity49%
Visibility6.2 mi
Dew point35°
Tue, 2754° / 38°0
54 °
Grass Valley, Tuesday, 27 October
Overcast. High 54°, low 38°.
Pressure30.12 inHg
Wind6.2 mph W
Humidity65%
Visibility—
Dew point37°
Wed, 2853° / 40°0
53 °
Grass Valley, Wednesday, 28 October
Overcast. High 53°, low 40°.
Pressure30.09 inHg
Wind6.7 mph E
Humidity74%
Visibility—
Dew point40°
Thu, 2955° / 39°0
55 °
Grass Valley, Thursday, 29 October
Clear. High 55°, low 39°.
Pressure30.15 inHg
Wind11.3 mph E
Humidity41%
Visibility—
Dew point26°
Fri, 3057° / 37°0
57 °
Grass Valley, Friday, 30 October
Clear. High 57°, low 37°.
Pressure30.00 inHg
Wind4.3 mph N
Humidity43%
Visibility—
Dew point26°
Sat, 3155° / 37°0
55 °
Grass Valley, Saturday, 31 October
Clear. High 55°, low 37°.
Pressure29.97 inHg
Wind10 mph NE
Humidity47%
Visibility—
Dew point28°
Sun, 0153° / 36°0
53 °
Grass Valley, Sunday, 1 November
Clear. High 53°, low 36°.
Pressure29.83 inHg
Wind9.8 mph NE
Humidity44%
Visibility—
Dew point26°
Mon, 0257° / 37°0
57 °
Grass Valley, Monday, 2 November
Clear. High 57°, low 37°.
Pressure29.83 inHg
Wind5.6 mph SW
Humidity44%
Visibility—
Dew point27°
Tue, 0348° / 37°0.01
48 °
Grass Valley, Tuesday, 3 November
Light rain. High 48°, low 37°.
Pressure29.91 inHg
Wind15 mph W
Humidity51%
Visibility—
Dew point29°
Wed, 0449° / 39°0
49 °
Grass Valley, Wednesday, 4 November
Overcast. High 49°, low 39°.
Pressure29.91 inHg
Wind21.2 mph SW
Humidity55%
Visibility—
Dew point29°
Thu, 0555° / 47°1.26
55 °
Grass Valley, Thursday, 5 November
Rain. High 55°, low 47°.
Pressure29.47 inHg
Wind36.3 mph SW
Humidity74%
Visibility—
Dew point41°
Fri, 0662° / 53°0.06
62 °
Grass Valley, Friday, 6 November
Light rain. High 62°, low 53°.
Pressure29.83 inHg
Wind37 mph SW
Humidity52%
Visibility—
Dew point40°
Sat, 0764° / 53°0.07
64 °
Grass Valley, Saturday, 7 November
Light rain. High 64°, low 53°.
Pressure29.71 inHg
Wind15.5 mph SW
Humidity52%
Visibility—
Dew point42°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0848° / 35°0.07
48 °
Grass Valley, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.07 in
Chance of precipitation32%
Record high60° (2016)
Record low25° (1994)
Mon, 0948° / 34°0.06
48 °
Grass Valley, Monday, 9 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.06 in
Chance of precipitation30%
Record high62° (1989)
Record low24° (2022)
Tue, 1048° / 35°0.07
48 °
Grass Valley, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.07 in
Chance of precipitation30%
Record high63° (1989)
Record low18° (1986)
Wed, 1148° / 35°0.08
48 °
Grass Valley, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.08 in
Chance of precipitation27%
Record high64° (1990)
Record low11° (1985)
Thu, 1248° / 35°0.07
48 °
Grass Valley, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.07 in
Chance of precipitation40%
Record high66° (1999)
Record low-4° (1985)
Fri, 1347° / 35°0.09
47 °
Grass Valley, Friday, 13 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.09 in
Chance of precipitation40%
Record high66° (1999)
Record low1° (1985)
Sat, 1446° / 35°0.04
46 °
Grass Valley, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.04 in
Chance of precipitation33%
Record high62° (2001)
Record low6° (2014)
Sun, 1547° / 34°0.06
47 °
Grass Valley, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.06 in
Chance of precipitation35%
Record high64° (2021)
Record low-6° (2014)
Mon, 1646° / 34°0.07
46 °
Grass Valley, Monday, 16 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.07 in
Chance of precipitation37%
Record high62° (1976)
Record low-1° (2014)
Tue, 1746° / 34°0.08
46 °
Grass Valley, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.08 in
Chance of precipitation48%
Record high65° (2019)
Record low6° (2014)
Wed, 1844° / 32°0.09
44 °
Grass Valley, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.09 in
Chance of precipitation33%
Record high56° (1965)
Record low12° (2014)
Thu, 1945° / 32°0.11
45 °
Grass Valley, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.11 in
Chance of precipitation42%
Record high59° (1989)
Record low15° (1985)
Fri, 2044° / 32°0.09
44 °
Grass Valley, Friday, 20 November
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.09 in
Chance of precipitation38%
Record high60° (1974)
Record low8° (1977)
Sat, 2142° / 31°0.07
42 °
Grass Valley, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high42°
Average low31°
Average precipitation0.07 in
Chance of precipitation32%
Record high58° (1974)
Record low6° (1985)
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.