Monthly outlook for Round Valley, CA: average high 58.7°, average low 45°. That is 4.2° above the climate normal for October. Precipitation is expected on 5 days (about 2.4 inches), against a normal of 2 days and 0.5 inches. The warmest day looks like 20 October (67.3°), the coolest 24 October (35.8°).
58.7°/45°
Average high / low
+4.2°
Above normal
5 / 2
Wet days / normal
2.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
20 October – 29 October
59°
52.4°
+3.7°
30 October – 8 November
58.2°
48.3°
+5.5°
9 November – 18 November
at normal
43°
—
October records over 66 years
74.1°1 October 1980All-time high
0.5°29 October 1971All-time low
Climate normals and records are computed from the nearest reference point — Aspendell (12 mi).
Wed, 2160° / 36°0.37
60 °
Round Valley, Wednesday, 21 October
Rain. High 60°, low 36°.
Pressure29.94 inHg
Wind3.2 mph E
Humidity54%
Visibility6.2 mi
Dew point35°
Thu, 2246° / 38°1.46
46 °
Round Valley, Thursday, 22 October
Rain. High 46°, low 38°.
Pressure29.88 inHg
Wind2.8 mph E
Humidity89%
Visibility6.2 mi
Dew point40°
Fri, 2352° / 38°0.12
52 °
Round Valley, Friday, 23 October
Rain. High 52°, low 38°.
Pressure30.06 inHg
Wind2.3 mph S
Humidity74%
Visibility6.2 mi
Dew point39°
Sat, 2453° / 36°0
53 °
Round Valley, Saturday, 24 October
Clear. High 53°, low 36°.
Pressure30.15 inHg
Wind3.1 mph SE
Humidity45%
Visibility—
Dew point27°
Sun, 2554° / 39°0
54 °
Round Valley, Sunday, 25 October
Clear. High 54°, low 39°.
Pressure30.18 inHg
Wind2.8 mph E
Humidity49%
Visibility—
Dew point30°
Mon, 2665° / 47°0
65 °
Round Valley, Monday, 26 October
Clear. High 65°, low 47°.
Pressure30.18 inHg
Wind4.2 mph E
Humidity22%
Visibility—
Dew point21°
Tue, 2765° / 52°0
65 °
Round Valley, Tuesday, 27 October
Overcast. High 65°, low 52°.
Pressure30.18 inHg
Wind4.3 mph E
Humidity23%
Visibility—
Dew point22°
Wed, 2866° / 55°0
66 °
Round Valley, Wednesday, 28 October
Light rain. High 66°, low 55°.
Pressure30.03 inHg
Wind5.6 mph S
Humidity26%
Visibility—
Dew point25°
Thu, 2963° / 52°0.03
63 °
Round Valley, Thursday, 29 October
Light rain. High 63°, low 52°.
Pressure29.97 inHg
Wind5.2 mph SE
Humidity49%
Visibility—
Dew point39°
Fri, 3063° / 51°0
63 °
Round Valley, Friday, 30 October
Overcast. High 63°, low 51°.
Pressure30.06 inHg
Wind6.7 mph SE
Humidity49%
Visibility—
Dew point38°
Sat, 3162° / 50°0.17
62 °
Round Valley, Saturday, 31 October
Light rain. High 62°, low 50°.
Pressure30.03 inHg
Wind11.5 mph SE
Humidity40%
Visibility—
Dew point32°
Sun, 0158° / 49°0.19
58 °
Round Valley, Sunday, 1 November
Rain. High 58°, low 49°.
Pressure29.88 inHg
Wind9 mph SW
Humidity52%
Visibility—
Dew point39°
Mon, 0256° / 47°0.03
56 °
Round Valley, Monday, 2 November
Light rain. High 56°, low 47°.
Pressure30.00 inHg
Wind8.6 mph W
Humidity52%
Visibility—
Dew point35°
Tue, 0354° / 45°0
54 °
Round Valley, Tuesday, 3 November
Overcast. High 54°, low 45°.
Pressure30.18 inHg
Wind7.1 mph W
Humidity43%
Visibility—
Dew point28°
Wed, 0457° / 45°0
57 °
Round Valley, Wednesday, 4 November
Clear. High 57°, low 45°.
Pressure30.21 inHg
Wind5.4 mph W
Humidity36%
Visibility—
Dew point25°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 0549° / 32°0.03
49 °
Round Valley, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high49°
Average low32°
Average precipitation0.03 in
Chance of precipitation8%
Record high62° (1988)
Record low5° (2015)
Fri, 0648° / 31°0.02
48 °
Round Valley, Friday, 6 November
Climate normal for this date — 60-year average.
Average high48°
Average low31°
Average precipitation0.02 in
Chance of precipitation8%
Record high62° (2006)
Record low4° (1996)
Sat, 0747° / 31°0.03
47 °
Round Valley, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high47°
Average low31°
Average precipitation0.03 in
Chance of precipitation18%
Record high67° (2006)
Record low7° (2011)
Sun, 0846° / 29°0.13
46 °
Round Valley, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high46°
Average low29°
Average precipitation0.13 in
Chance of precipitation20%
Record high62° (1978)
Record low8° (1960)
Mon, 0945° / 28°0.06
45 °
Round Valley, Monday, 9 November
Climate normal for this date — 60-year average.
Average high45°
Average low28°
Average precipitation0.06 in
Chance of precipitation20%
Record high62° (2014)
Record low1° (1998)
Tue, 1044° / 28°0.06
44 °
Round Valley, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.06 in
Chance of precipitation18%
Record high61° (2014)
Record low6° (2000)
Wed, 1144° / 28°0.1
44 °
Round Valley, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.1 in
Chance of precipitation23%
Record high59° (1989)
Record low-4° (2000)
Thu, 1244° / 28°0.06
44 °
Round Valley, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.06 in
Chance of precipitation25%
Record high60° (1995)
Record low-4° (2000)
Fri, 1344° / 27°0.06
44 °
Round Valley, Friday, 13 November
Climate normal for this date — 60-year average.
Average high44°
Average low27°
Average precipitation0.06 in
Chance of precipitation23%
Record high59° (1990)
Record low-6° (1985)
Sat, 1443° / 27°0.07
43 °
Round Valley, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high43°
Average low27°
Average precipitation0.07 in
Chance of precipitation17%
Record high63° (2016)
Record low-3° (1964)
Sun, 1543° / 26°0.03
43 °
Round Valley, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high43°
Average low26°
Average precipitation0.03 in
Chance of precipitation10%
Record high59° (1995)
Record low-8° (1978)
Mon, 1642° / 27°0.06
42 °
Round Valley, Monday, 16 November
Climate normal for this date — 60-year average.
Average high42°
Average low27°
Average precipitation0.06 in
Chance of precipitation15%
Record high58° (1995)
Record low3° (2000)
Tue, 1742° / 26°0.1
42 °
Round Valley, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high42°
Average low26°
Average precipitation0.1 in
Chance of precipitation25%
Record high60° (1995)
Record low4° (1994)
Wed, 1841° / 26°0.07
41 °
Round Valley, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high41°
Average low26°
Average precipitation0.07 in
Chance of precipitation20%
Record high61° (2019)
Record low-4° (1964)
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 Round Valley, CA 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 Round Valley, CA 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.