As of 20:25 PST

Weather in Grass Valley, OR

44°

Grass Valley, Thursday, 12 November, 20:25

Overcast. Feels like 40°. High 48°, low 42°.

Pressure29.68 inHg

Wind6.2 mph E

Humidity86%

Visibility6.2 mi

Dew point40°

See detailed hourly forecast

Monthly outlook for Grass Valley, OR: average high 46.1°, average low 36.1°. That is 1° above the climate normal for November. Precipitation is expected on 5 days (about 0.8 inches), against a normal of 6 days and 1.3 inches. The warmest day looks like 14 November (54.1°), the coolest 22 November (30.4°).

46.1°/36.1°

Average high / low

+1°

Above normal

5 / 6

Wet days / normal

0.8 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
12 November – 21 November	45.2°	45.6°	-0.2°
22 November – 1 December	47.5°	41.4°	+3.4°
2 December – 11 December	at normal	39.4°	—

November records over 66 years

67.8°4 November 2020All-time high

-19.3°25 November 1985All-time low

Fri, 1343° / 38°

0.26

43 °

Grass Valley, Friday, 13 November

Rain. High 43°, low 38°.

Pressure29.32 inHg

Wind3.6 mph NE

Humidity69%

Visibility6.2 mi

Dew point43°

Sat, 1454° / 38°

54 °

Grass Valley, Saturday, 14 November

Overcast. High 54°, low 38°.

Pressure29.80 inHg

Wind10.3 mph SW

Humidity56%

Visibility6.2 mi

Dew point39°

Sun, 1549° / 39°

0.06

49 °

Grass Valley, Sunday, 15 November

Light rain. High 49°, low 39°.

Pressure29.91 inHg

Wind6.8 mph SW

Humidity70%

Visibility6.2 mi

Dew point40°

Mon, 1646° / 34°

46 °

Grass Valley, Monday, 16 November

Mostly clear. High 46°, low 34°.

Pressure30.09 inHg

Wind8.7 mph SW

Humidity70%

Visibility6.2 mi

Dew point35°

Tue, 1743° / 31°

43 °

Grass Valley, Tuesday, 17 November

Clear. High 43°, low 31°.

Pressure30.12 inHg

Wind6.3 mph E

Humidity82%

Visibility—

Dew point33°

Wed, 1840° / 33°

0.02

40 °

Grass Valley, Wednesday, 18 November

Snow. High 40°, low 33°.

Pressure29.88 inHg

Wind9.4 mph NE

Humidity97%

Visibility—

Dew point34°

Thu, 1941° / 35°

0.07

41 °

Grass Valley, Thursday, 19 November

Snow. High 41°, low 35°.

Pressure29.97 inHg

Wind7.8 mph N

Humidity85%

Visibility—

Dew point33°

Fri, 2043° / 36°

0.19

43 °

Grass Valley, Friday, 20 November

Snow. High 43°, low 36°.

Pressure30.09 inHg

Wind6.6 mph N

Humidity77%

Visibility—

Dew point32°

Sat, 2144° / 32°

44 °

Grass Valley, Saturday, 21 November

Overcast. High 44°, low 32°.

Pressure30.18 inHg

Wind5.2 mph S

Humidity55%

Visibility—

Dew point24°

Sun, 2245° / 30°

45 °

Grass Valley, Sunday, 22 November

Clear. High 45°, low 30°.

Pressure30.15 inHg

Wind6.8 mph S

Humidity58%

Visibility—

Dew point24°

Mon, 2345° / 31°

45 °

Grass Valley, Monday, 23 November

Mostly clear. High 45°, low 31°.

Pressure30.18 inHg

Wind3.6 mph N

Humidity58%

Visibility—

Dew point25°

Tue, 2445° / 32°

45 °

Grass Valley, Tuesday, 24 November

Overcast. High 45°, low 32°.

Pressure30.12 inHg

Wind3.9 mph S

Humidity65%

Visibility—

Dew point28°

Wed, 2553° / 39°

0.01

53 °

Grass Valley, Wednesday, 25 November

Light rain. High 53°, low 39°.

Pressure30.09 inHg

Wind7.4 mph SW

Humidity57%

Visibility—

Dew point32°

Thu, 2648° / 43°

0.22

48 °

Grass Valley, Thursday, 26 November

Rain. High 48°, low 43°.

Pressure30.12 inHg

Wind20.8 mph SW

Humidity71%

Visibility—

Dew point36°

Fri, 2749° / 43°

49 °

Grass Valley, Friday, 27 November

Light rain. High 49°, low 43°.

Pressure30.12 inHg

Wind25.7 mph SW

Humidity70%

Visibility—

Dew point39°

From day 17 onward the outlook is built from 60-year climate statistics

Sat, 2840° / 29°

0.07

40 °

Grass Valley, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high40°

Average low29°

Average precipitation0.07 in

Chance of precipitation38%

Record high58° (2021)

Record low2° (1985)

Sun, 2940° / 29°

0.08

40 °

Grass Valley, Sunday, 29 November

Climate normal for this date — 60-year average.

Average high40°

Average low29°

Average precipitation0.08 in

Chance of precipitation38%

Record high57° (1995)

Record low0° (1985)

Mon, 3041° / 29°

0.08

41 °

Grass Valley, Monday, 30 November

Climate normal for this date — 60-year average.

Average high41°

Average low29°

Average precipitation0.08 in

Chance of precipitation40%

Record high56° (2021)

Record low-14° (1985)

Tue, 0141° / 30°

0.09

41 °

Grass Valley, Tuesday, 1 December

Climate normal for this date — 60-year average.

Average high41°

Average low30°

Average precipitation0.09 in

Chance of precipitation43%

Record high63° (2021)

Record low1° (1985)

Wed, 0241° / 31°

0.15

41 °

Grass Valley, Wednesday, 2 December

Climate normal for this date — 60-year average.

Average high41°

Average low31°

Average precipitation0.15 in

Chance of precipitation42%

Record high53° (1975)

Record low4° (1985)

Thu, 0340° / 29°

0.09

40 °

Grass Valley, Thursday, 3 December

Climate normal for this date — 60-year average.

Average high40°

Average low29°

Average precipitation0.09 in

Chance of precipitation33%

Record high55° (1975)

Record low-1° (1992)

Fri, 0439° / 29°

0.11

39 °

Grass Valley, Friday, 4 December

Climate normal for this date — 60-year average.

Average high39°

Average low29°

Average precipitation0.11 in

Chance of precipitation45%

Record high57° (2023)

Record low-1° (1992)

Sat, 0538° / 28°

0.07

38 °

Grass Valley, Saturday, 5 December

Climate normal for this date — 60-year average.

Average high38°

Average low28°

Average precipitation0.07 in

Chance of precipitation35%

Record high57° (2023)

Record low6° (1992)

Sun, 0639° / 28°

0.11

39 °

Grass Valley, Sunday, 6 December

Climate normal for this date — 60-year average.

Average high39°

Average low28°

Average precipitation0.11 in

Chance of precipitation50%

Record high54° (2023)

Record low6° (1992)

Mon, 0738° / 27°

0.09

38 °

Grass Valley, Monday, 7 December

Climate normal for this date — 60-year average.

Average high38°

Average low27°

Average precipitation0.09 in

Chance of precipitation35%

Record high55° (1962)

Record low2° (1972)

Tue, 0839° / 27°

0.08

39 °

Grass Valley, Tuesday, 8 December

Climate normal for this date — 60-year average.

Average high39°

Average low27°

Average precipitation0.08 in

Chance of precipitation35%

Record high57° (2015)

Record low-20° (1972)

Wed, 0939° / 28°

0.09

39 °

Grass Valley, Wednesday, 9 December

Climate normal for this date — 60-year average.

Average high39°

Average low28°

Average precipitation0.09 in

Chance of precipitation37%

Record high55° (1975)

Record low-11° (1972)

Thu, 1040° / 28°

0.11

40 °

Grass Valley, Thursday, 10 December

Climate normal for this date — 60-year average.

Average high40°

Average low28°

Average precipitation0.11 in

Chance of precipitation45%

Record high57° (2004)

Record low-16° (1972)

Fri, 1140° / 28°

0.09

40 °

Grass Valley, Friday, 11 December

Climate normal for this date — 60-year average.

Average high40°

Average low28°

Average precipitation0.09 in

Chance of precipitation43%

Record high57° (2014)

Record low-2° (1963)

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.