Monthly outlook for Thoman, CA: average high 84°, average low 55.7°. That is 3.9° 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 17 October (95.4°), the coolest 12 October (46°).
84°/55.7°
Average high / low
+3.9°
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
83.5°
78.1°
+3°
20 October – 29 October
84.8°
73.7°
+6.2°
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 (1 mi).
Sun, 1173° / 49°0
73 °
Thoman, Sunday, 11 October
Clear. High 73°, low 49°.
Pressure29.50 inHg
Wind2.2 mph S
Humidity25%
Visibility6.2 mi
Dew point33°
Mon, 1272° / 46°0
72 °
Thoman, Monday, 12 October
Clear. High 72°, low 46°.
Pressure29.85 inHg
Wind6.2 mph N
Humidity26%
Visibility6.2 mi
Dew point29°
Tue, 1375° / 53°0
75 °
Thoman, Tuesday, 13 October
Clear. High 75°, low 53°.
Pressure30.03 inHg
Wind6.4 mph NE
Humidity22%
Visibility6.2 mi
Dew point21°
Wed, 1482° / 52°0
82 °
Thoman, Wednesday, 14 October
Clear. High 82°, low 52°.
Pressure30.06 inHg
Wind0.3 mph SE
Humidity19%
Visibility6.2 mi
Dew point29°
Thu, 1590° / 57°0
90 °
Thoman, Thursday, 15 October
Clear. High 90°, low 57°.
Pressure30.09 inHg
Wind7 mph NE
Humidity17%
Visibility—
Dew point29°
Fri, 1695° / 60°0
95 °
Thoman, Friday, 16 October
Clear. High 95°, low 60°.
Pressure30.09 inHg
Wind3.6 mph N
Humidity15%
Visibility—
Dew point29°
Sat, 1795° / 64°0
95 °
Thoman, Saturday, 17 October
Clear. High 95°, low 64°.
Pressure30.06 inHg
Wind6.6 mph SW
Humidity14%
Visibility—
Dew point30°
Sun, 1893° / 63°0
93 °
Thoman, Sunday, 18 October
Partly cloudy. High 93°, low 63°.
Pressure30.06 inHg
Wind6.2 mph SW
Humidity15%
Visibility—
Dew point31°
Mon, 1986° / 57°0
86 °
Thoman, Monday, 19 October
Clear. High 86°, low 57°.
Pressure30.09 inHg
Wind8.6 mph W
Humidity17%
Visibility—
Dew point30°
Tue, 2082° / 53°0
82 °
Thoman, Tuesday, 20 October
Overcast. High 82°, low 53°.
Pressure30.12 inHg
Wind8.5 mph W
Humidity38%
Visibility—
Dew point44°
Wed, 2185° / 50°0
85 °
Thoman, Wednesday, 21 October
Clear. High 85°, low 50°.
Pressure30.03 inHg
Wind4 mph SW
Humidity28%
Visibility—
Dew point37°
Thu, 2289° / 58°0
89 °
Thoman, Thursday, 22 October
Clear. High 89°, low 58°.
Pressure30.09 inHg
Wind5.7 mph SW
Humidity17%
Visibility—
Dew point30°
Fri, 2389° / 59°0
89 °
Thoman, Friday, 23 October
Clear. High 89°, low 59°.
Pressure30.06 inHg
Wind5.1 mph SW
Humidity16%
Visibility—
Dew point29°
Sat, 2484° / 60°0
84 °
Thoman, Saturday, 24 October
Overcast. High 84°, low 60°.
Pressure29.91 inHg
Wind4.7 mph SW
Humidity19%
Visibility—
Dew point29°
Sun, 2581° / 55°0
81 °
Thoman, Sunday, 25 October
Partly cloudy. High 81°, low 55°.
Pressure30.03 inHg
Wind5 mph S
Humidity29%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2673° / 53°0.06
73 °
Thoman, 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 °
Thoman, 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 °
Thoman, 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 °
Thoman, 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 °
Thoman, 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 °
Thoman, 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 °
Thoman, 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 °
Thoman, 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 °
Thoman, 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 °
Thoman, 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 °
Thoman, 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 °
Thoman, 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 °
Thoman, 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 °
Thoman, 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 Thoman, 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 Thoman, 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.