As of 05:22 PDT

Weather in Grass Valley, OR

37°

Grass Valley, Friday, 30 October, 05:22

Overcast. Feels like 37°. High 46°, low 29°.

Pressure29.91 inHg

Wind1.6 mph E

Humidity74%

Visibility6.2 mi

Dew point30°

See detailed hourly forecast

Monthly outlook for Grass Valley, OR: average high 49.7°, average low 35.8°. That is 0.1° above the climate normal for October. Precipitation is expected on 4 days (about 0.6 inches), against a normal of 5 days and 1.1 inches. The warmest day looks like 7 November (56.9°), the coolest 31 October (26.2°).

49.7°/35.8°

Average high / low

+0.1°

Above normal

4 / 5

Wet days / normal

0.6 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
30 October – 8 November	52.2°	50.6°	+0.9°
9 November – 18 November	45.4°	47°	-0.9°
19 November – 28 November	at normal	42.3°	—

October records over 66 years

88°2 October 1975All-time high

17.4°30 October 2019All-time low

Sat, 3146° / 26°

0.11

46 °

Grass Valley, Saturday, 31 October

Light rain. High 46°, low 26°.

Pressure30.03 inHg

Wind4.4 mph NE

Humidity70%

Visibility6.2 mi

Dew point37°

Sun, 0152° / 34°

52 °

Grass Valley, Sunday, 1 November

Clear. High 52°, low 34°.

Pressure30.06 inHg

Wind4.6 mph W

Humidity62%

Visibility6.2 mi

Dew point36°

Mon, 0254° / 34°

54 °

Grass Valley, Monday, 2 November

Overcast. High 54°, low 34°.

Pressure30.33 inHg

Wind2.6 mph SE

Humidity62%

Visibility6.2 mi

Dew point37°

Tue, 0355° / 41°

55 °

Grass Valley, Tuesday, 3 November

Overcast. High 55°, low 41°.

Pressure30.24 inHg

Wind4.7 mph E

Humidity67%

Visibility—

Dew point38°

Wed, 0452° / 39°

52 °

Grass Valley, Wednesday, 4 November

Overcast. High 52°, low 39°.

Pressure30.06 inHg

Wind7.2 mph E

Humidity68%

Visibility—

Dew point38°

Thu, 0555° / 41°

55 °

Grass Valley, Thursday, 5 November

Overcast. High 55°, low 41°.

Pressure29.88 inHg

Wind8.3 mph W

Humidity49%

Visibility—

Dew point31°

Fri, 0654° / 37°

54 °

Grass Valley, Friday, 6 November

Partly cloudy. High 54°, low 37°.

Pressure30.15 inHg

Wind6.2 mph SW

Humidity57%

Visibility—

Dew point32°

Sat, 0757° / 41°

57 °

Grass Valley, Saturday, 7 November

Overcast. High 57°, low 41°.

Pressure30.21 inHg

Wind8.3 mph NE

Humidity37%

Visibility—

Dew point26°

Sun, 0852° / 40°

52 °

Grass Valley, Sunday, 8 November

Overcast. High 52°, low 40°.

Pressure29.97 inHg

Wind4.5 mph NE

Humidity49%

Visibility—

Dew point28°

Mon, 0954° / 42°

0.11

54 °

Grass Valley, Monday, 9 November

Light rain. High 54°, low 42°.

Pressure29.62 inHg

Wind16.6 mph SW

Humidity49%

Visibility—

Dew point32°

Tue, 1048° / 38°

0.07

48 °

Grass Valley, Tuesday, 10 November

Light rain. High 48°, low 38°.

Pressure29.50 inHg

Wind17.6 mph S

Humidity42%

Visibility—

Dew point23°

Wed, 1144° / 36°

44 °

Grass Valley, Wednesday, 11 November

Overcast. High 44°, low 36°.

Pressure29.56 inHg

Wind11.1 mph SW

Humidity54%

Visibility—

Dew point26°

Thu, 1238° / 35°

0.28

38 °

Grass Valley, Thursday, 12 November

Rain. High 38°, low 35°.

Pressure30.03 inHg

Wind9.9 mph SW

Humidity92%

Visibility—

Dew point36°

Fri, 1345° / 31°

45 °

Grass Valley, Friday, 13 November

Mostly clear. High 45°, low 31°.

Pressure30.39 inHg

Wind3.9 mph N

Humidity70%

Visibility—

Dew point29°

Sat, 1443° / 29°

43 °

Grass Valley, Saturday, 14 November

Clear. High 43°, low 29°.

Pressure30.36 inHg

Wind4.3 mph NE

Humidity65%

Visibility—

Dew point26°

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

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)

Wed, 2542° / 30°

0.1

42 °

Grass Valley, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high42°

Average low30°

Average precipitation0.1 in

Chance of precipitation45%

Record high57° (2014)

Record low-19° (1985)

Thu, 2641° / 29°

0.06

41 °

Grass Valley, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high41°

Average low29°

Average precipitation0.06 in

Chance of precipitation23%

Record high56° (2014)

Record low12° (1993)

Fri, 2741° / 30°

0.09

41 °

Grass Valley, Friday, 27 November

Climate normal for this date — 60-year average.

Average high41°

Average low30°

Average precipitation0.09 in

Chance of precipitation45%

Record high57° (2011)

Record low6° (1979)

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)

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.