Monthly outlook for Angwin, CA: average high 78.9°, average low 50.9°. That is 1.1° above the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 2 days and 0.9 inches. The warmest day looks like 16 October (91.3°), the coolest 11 October (36.9°).
78.9°/50.9°
Average high / low
+1.1°
Above normal
0 / 2
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 October – 19 October
78.3°
78.1°
+0.1°
20 October – 29 October
79.9°
73.7°
+3.5°
30 October – 8 November
at normal
69.8°
—
October records over 66 years
106°1 October 2020All-time high
39.7°29 October 1971All-time low
Climate normals and records are computed from the nearest reference point — St. Helena (5 mi).
Sun, 1167° / 37°0
67 °
Angwin, Sunday, 11 October
Clear. High 67°, low 37°.
Pressure29.50 inHg
Wind1.9 mph SW
Humidity29%
Visibility6.2 mi
Dew point38°
Mon, 1268° / 40°0
68 °
Angwin, Monday, 12 October
Clear. High 68°, low 40°.
Pressure29.83 inHg
Wind7.6 mph N
Humidity26%
Visibility6.2 mi
Dew point27°
Tue, 1372° / 50°0
72 °
Angwin, Tuesday, 13 October
Clear. High 72°, low 50°.
Pressure30.00 inHg
Wind7.2 mph N
Humidity23%
Visibility6.2 mi
Dew point22°
Wed, 1477° / 48°0
77 °
Angwin, Wednesday, 14 October
Partly cloudy. High 77°, low 48°.
Pressure30.09 inHg
Wind6.9 mph SW
Humidity22%
Visibility—
Dew point27°
Thu, 1583° / 52°0
83 °
Angwin, Thursday, 15 October
Clear. High 83°, low 52°.
Pressure30.12 inHg
Wind4.4 mph SW
Humidity19%
Visibility—
Dew point26°
Fri, 1691° / 58°0
91 °
Angwin, Friday, 16 October
Clear. High 91°, low 58°.
Pressure30.06 inHg
Wind4.2 mph NE
Humidity19%
Visibility—
Dew point33°
Sat, 1790° / 59°0
90 °
Angwin, Saturday, 17 October
Clear. High 90°, low 59°.
Pressure30.00 inHg
Wind6.5 mph SW
Humidity13%
Visibility—
Dew point24°
Sun, 1886° / 58°0
86 °
Angwin, Sunday, 18 October
Clear. High 86°, low 58°.
Pressure30.00 inHg
Wind6.5 mph SW
Humidity17%
Visibility—
Dew point29°
Mon, 1981° / 53°0
81 °
Angwin, Monday, 19 October
Mostly clear. High 81°, low 53°.
Pressure29.94 inHg
Wind5.3 mph SW
Humidity19%
Visibility—
Dew point28°
Tue, 2075° / 47°0
75 °
Angwin, Tuesday, 20 October
Partly cloudy. High 75°, low 47°.
Pressure29.94 inHg
Wind7 mph SW
Humidity36%
Visibility—
Dew point37°
Wed, 2178° / 48°0
78 °
Angwin, Wednesday, 21 October
Mostly clear. High 78°, low 48°.
Pressure30.03 inHg
Wind6.8 mph NW
Humidity20%
Visibility—
Dew point24°
Thu, 2281° / 54°0
81 °
Angwin, Thursday, 22 October
Overcast. High 81°, low 54°.
Pressure30.09 inHg
Wind7 mph W
Humidity14%
Visibility—
Dew point21°
Fri, 2383° / 56°0
83 °
Angwin, Friday, 23 October
Overcast. High 83°, low 56°.
Pressure30.12 inHg
Wind6.5 mph NW
Humidity25%
Visibility—
Dew point34°
Sat, 2489° / 59°0
89 °
Angwin, Saturday, 24 October
Overcast. High 89°, low 59°.
Pressure29.97 inHg
Wind7.7 mph N
Humidity18%
Visibility—
Dew point32°
Sun, 2573° / 54°0
73 °
Angwin, Sunday, 25 October
Overcast. High 73°, low 54°.
Pressure29.83 inHg
Wind12.2 mph W
Humidity38%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2673° / 53°0.06
73 °
Angwin, Monday, 26 October
Climate normal for this date — 60-year average.
Average high73°
Average low53°
Average precipitation0.06 in
Chance of precipitation15%
Record high93° (2003)
Record low42° (2023)
Tue, 2772° / 52°0.04
72 °
Angwin, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high72°
Average low52°
Average precipitation0.04 in
Chance of precipitation10%
Record high93° (2003)
Record low43° (2004)
Wed, 2871° / 52°0.09
71 °
Angwin, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high71°
Average low52°
Average precipitation0.09 in
Chance of precipitation18%
Record high92° (2003)
Record low41° (2023)
Thu, 2971° / 51°0.08
71 °
Angwin, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high71°
Average low51°
Average precipitation0.08 in
Chance of precipitation22%
Record high85° (1965)
Record low40° (1971)
Fri, 3070° / 51°0.07
70 °
Angwin, Friday, 30 October
Climate normal for this date — 60-year average.
Average high70°
Average low51°
Average precipitation0.07 in
Chance of precipitation17%
Record high87° (1966)
Record low44° (1989)
Sat, 3171° / 51°0.04
71 °
Angwin, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high71°
Average low51°
Average precipitation0.04 in
Chance of precipitation18%
Record high89° (1966)
Record low42° (2019)
Sun, 0171° / 51°0.08
71 °
Angwin, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high71°
Average low51°
Average precipitation0.08 in
Chance of precipitation15%
Record high89° (1967)
Record low39° (2003)
Mon, 0271° / 50°0.06
71 °
Angwin, Monday, 2 November
Climate normal for this date — 60-year average.
Average high71°
Average low50°
Average precipitation0.06 in
Chance of precipitation18%
Record high87° (2020)
Record low42° (1971)
Tue, 0371° / 50°0.04
71 °
Angwin, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high71°
Average low50°
Average precipitation0.04 in
Chance of precipitation13%
Record high89° (2018)
Record low38° (2022)
Wed, 0471° / 51°0.04
71 °
Angwin, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high71°
Average low51°
Average precipitation0.04 in
Chance of precipitation13%
Record high85° (1976)
Record low40° (1973)
Thu, 0569° / 50°0.11
69 °
Angwin, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high69°
Average low50°
Average precipitation0.11 in
Chance of precipitation17%
Record high85° (2020)
Record low41° (2017)
Fri, 0668° / 51°0.08
68 °
Angwin, Friday, 6 November
Climate normal for this date — 60-year average.
Average high68°
Average low51°
Average precipitation0.08 in
Chance of precipitation18%
Record high82° (1991)
Record low42° (1972)
Sat, 0768° / 50°0.12
68 °
Angwin, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high68°
Average low50°
Average precipitation0.12 in
Chance of precipitation23%
Record high83° (1991)
Record low40° (2017)
Sun, 0866° / 49°0.09
66 °
Angwin, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high66°
Average low49°
Average precipitation0.09 in
Chance of precipitation20%
Record high82° (2019)
Record low40° (2021)
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 Angwin, 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 Angwin, 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.