Monthly outlook for Grass Valley, OR: average high 51°, average low 38.9°. That is 0° below the climate normal for October. Precipitation is expected on 5 days (about 0.9 inches), against a normal of 5 days and 1.1 inches. The warmest day looks like 6 November (62.3°), the coolest 30 October (30.6°).
51°/38.9°
Average high / low
−0°
Below normal
5 / 5
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
26 October – 4 November
47.8°
52.2°
-2.4°
5 November – 14 November
56.2°
48.4°
+4.3°
15 November – 24 November
at normal
44.2°
—
October records over 66 years
88°2 October 1975All-time high
17.4°30 October 2019All-time low
Tue, 2749° / 35°0.03
49 °
Grass Valley, Tuesday, 27 October
Light rain. High 49°, low 35°.
Pressure30.00 inHg
Wind8.1 mph SW
Humidity63%
Visibility6.2 mi
Dew point39°
Wed, 2850° / 36°0.04
50 °
Grass Valley, Wednesday, 28 October
Light rain. High 50°, low 36°.
Pressure30.03 inHg
Wind14.2 mph SW
Humidity64%
Visibility6.2 mi
Dew point36°
Thu, 2949° / 33°0
49 °
Grass Valley, Thursday, 29 October
Overcast. High 49°, low 33°.
Pressure30.03 inHg
Wind0.9 mph NW
Humidity65%
Visibility6.2 mi
Dew point35°
Fri, 3048° / 31°0.03
48 °
Grass Valley, Friday, 30 October
Light rain. High 48°, low 31°.
Pressure30.00 inHg
Wind7.1 mph SW
Humidity67%
Visibility—
Dew point32°
Sat, 3147° / 31°0
47 °
Grass Valley, Saturday, 31 October
Partly cloudy. High 47°, low 31°.
Pressure30.00 inHg
Wind4.8 mph NE
Humidity83%
Visibility—
Dew point34°
Sun, 0147° / 34°0
47 °
Grass Valley, Sunday, 1 November
Overcast. High 47°, low 34°.
Pressure30.12 inHg
Wind9.4 mph NW
Humidity55%
Visibility—
Dew point27°
Mon, 0245° / 33°0
45 °
Grass Valley, Monday, 2 November
Overcast. High 45°, low 33°.
Pressure30.21 inHg
Wind11.1 mph NE
Humidity57%
Visibility—
Dew point27°
Tue, 0346° / 37°0.06
46 °
Grass Valley, Tuesday, 3 November
Light rain. High 46°, low 37°.
Pressure29.97 inHg
Wind9.4 mph NE
Humidity57%
Visibility—
Dew point27°
Wed, 0449° / 37°0.26
49 °
Grass Valley, Wednesday, 4 November
Rain. High 49°, low 37°.
Pressure29.83 inHg
Wind3.9 mph NE
Humidity81%
Visibility—
Dew point37°
Thu, 0556° / 42°0.33
56 °
Grass Valley, Thursday, 5 November
Rain. High 56°, low 42°.
Pressure29.62 inHg
Wind15.3 mph S
Humidity82%
Visibility—
Dew point40°
Fri, 0662° / 53°0
62 °
Grass Valley, Friday, 6 November
Overcast. High 62°, low 53°.
Pressure29.38 inHg
Wind25 mph S
Humidity45%
Visibility—
Dew point40°
Sat, 0757° / 48°0.01
57 °
Grass Valley, Saturday, 7 November
Light rain. High 57°, low 48°.
Pressure29.59 inHg
Wind11.5 mph W
Humidity57%
Visibility—
Dew point38°
Sun, 0854° / 45°0
54 °
Grass Valley, Sunday, 8 November
Partly cloudy. High 54°, low 45°.
Pressure30.03 inHg
Wind10.8 mph W
Humidity62%
Visibility—
Dew point38°
Mon, 0953° / 45°0
53 °
Grass Valley, Monday, 9 November
Overcast. High 53°, low 45°.
Pressure30.30 inHg
Wind4.9 mph SW
Humidity68%
Visibility—
Dew point38°
Tue, 1056° / 45°0
56 °
Grass Valley, Tuesday, 10 November
Overcast. High 56°, low 45°.
Pressure30.30 inHg
Wind8.5 mph NE
Humidity67%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Sun, 2242° / 30°0.09
42 °
Grass Valley, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.09 in
Chance of precipitation40%
Record high61° (2017)
Record low0° (1985)
Mon, 2343° / 30°0.06
43 °
Grass Valley, Monday, 23 November
Climate normal for this date — 60-year average.
Average high43°
Average low30°
Average precipitation0.06 in
Chance of precipitation50%
Record high58° (2017)
Record low-7° (1985)
Tue, 2443° / 31°0.09
43 °
Grass Valley, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.09 in
Chance of precipitation43%
Record high57° (1995)
Record low-16° (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.