As of 16:38 PDT

Weather in St. Helena, CA

90°

St. Helena, Friday, 16 October, 16:38

Clear. Feels like 87°. High 90°, low 51°.

Pressure30.03 inHg

Wind2 mph SW

Humidity20%

Visibility6.2 mi

Dew point44°

Fri, 16October

90°/51°

Sat, 17October

88°/50°

Sun, 18October

79°/45°

Mon, 19October

66°/48°

Tue, 20October

60°/51°

Wed, 21October

70°/48°

Thu, 22October

69°/48°

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	84°	56°	53°	51°	61°	70°	80°	85°	86°	88°	77°	59°
Feels like	84°	53°	51°	49°	58°	68°	77°	82°	83°	85°	75°	56°
Pressure, inHg	30.06	30.06	30.06	30.06	30.06	30.06	30.06	30.06	30.06	30.03	30.06	30.09
Wind, mph	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5	1.7	1	1.1
Humidity, %	23%	23%	23%	23%	23%	23%	23%	23%	23%	19%	24%	29%
Precipitation	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in
Visibility	—	—	—	—	—	—	—	—	—	6.2 mi	6.2 mi	6.2 mi

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	56°	54°	50°	52°	55°	71°	82°	87°	87°	75°	63°	55°
Feels like	53°	50°	47°	49°	52°	69°	79°	84°	83°	73°	60°	52°
Pressure, inHg	30.09	30.09	30.06	30.09	30.09	30.09	30.06	30.03	30.00	29.97	29.97	29.97
Wind, mph	0.9	0.6	0.3	0.3	0.5	0.8	0.5	2	3.1	1.1	1	1.2
Humidity, %	33%	34%	34%	35%	34%	20%	14%	12%	13%	19%	29%	33%
Precipitation	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in
Visibility	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	52°	49°	45°	56°	56°	71°	78°	78°	74°	64°	55°	52°
Feels like	49°	49°	44°	54°	54°	69°	76°	77°	73°	63°	54°	51°
Pressure, inHg	29.97	29.97	29.97	29.94	29.97	29.97	29.97	29.94	29.91	29.91	29.94	29.97
Wind, mph	1.5	1.1	1.5	0.9	1	1.3	2.2	3.6	3	2.3	1.5	1.8
Humidity, %	41%	47%	52%	58%	59%	33%	27%	29%	35%	57%	86%	98%
Precipitation	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in
Visibility	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	0.9 mi

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	50°	48°	48°	48°	49°	55°	62°	65°	66°	60°	55°	51°
Feels like	48°	46°	46°	46°	47°	54°	59°	62°	64°	58°	53°	50°
Pressure, inHg	29.97	29.97	29.97	29.94	29.97	29.97	29.94	29.88	29.85	29.85	29.88	29.88
Wind, mph	2.2	2.2	2.7	2.5	2.8	3.1	3.4	3.7	3.2	4.2	2.6	1.9
Humidity, %	99%	99%	95%	95%	87%	62%	45%	33%	31%	54%	74%	84%
Precipitation	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in
Visibility	0.9 mi	3.3 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	52°	54°	54°	53°	52°	54°	57°	60°	60°	59°	58°	56°
Feels like	51°	53°	53°	53°	52°	53°	56°	59°	59°	58°	58°	55°
Pressure, inHg	29.88	29.88	29.85	29.85	29.85	29.88	29.88	29.88	29.88	29.91	29.91	29.91
Wind, mph	1.3	0.6	0.4	0.9	1	1.3	1.5	1.7	0.7	1.7	1.7	1.7
Humidity, %	84%	83%	84%	90%	99%	92%	82%	68%	76%	88%	88%	88%
Precipitation	0 in	0 in	0 in	0.03 in	0.03 in	0.01 in	0.02 in	0.02 in	0.02 in	0.01 in	0.01 in	0.01 in
Visibility	6.2 mi	6.2 mi	6.2 mi	5.5 mi	2.8 mi	4.5 mi	6.2 mi	6.2 mi	6.2 mi	—	—	—

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	64°	54°	51°	48°	53°	57°	61°	65°	67°	69°	67°	62°
Feels like	64°	53°	50°	48°	52°	56°	60°	63°	65°	67°	66°	61°
Pressure, inHg	29.88	29.88	29.88	29.88	29.88	29.88	29.88	29.88	29.88	29.88	29.88	29.88
Wind, mph	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2
Humidity, %	52%	52%	52%	52%	52%	52%	52%	52%	52%	52%	52%	52%
Precipitation	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in
Visibility	—	—	—	—	—	—	—	—	—	—	—	—

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	64°	48°	48°	48°	53°	57°	62°	64°	63°	63°	60°	55°
Feels like	64°	48°	48°	48°	52°	56°	60°	62°	61°	61°	58°	54°
Pressure, inHg	29.97	29.97	29.97	29.97	29.97	29.97	29.97	29.97	29.97	29.97	29.97	29.97
Wind, mph	3.3	3.3	3.3	3.3	3.3	3.3	3.3	3.3	3.3	3.3	3.3	3.3
Humidity, %	45%	45%	45%	45%	45%	45%	45%	45%	45%	45%	45%	45%
Precipitation	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in
Visibility	—	—	—	—	—	—	—	—	—	—	—	—

See detailed hourly forecast

Sun and moon today

Day length — 11 h 11 min

Sunrise — 07:19

Sunset — 18:30

Sunrise and sunset in local time

First quarter, 31%

Sunrise — —

Sunset — —

St. Helena, CA climate by month

The annual average temperature in St. Helena, CA is 62.3°. The warmest month is July (average high 90.5°), and the coldest is January (average low 41.6°). About 28.1 inches of precipitation fall per year, most of it in January (5.6 in). Figures are 60-year climate normals and records from 66 years of observations.

Month	High	Low	Precipitation	Wet days	Record high	Record low
January	58.1°	41.6°	5.6 in	10	80.1° (2021)	20.3° (1974)
February	60.6°	43.1°	5.1 in	9	80.4° (2022)	27° (1979)
March	63.8°	45°	4.2 in	9	87.1° (1988)	29.7° (2018)
April	69.3°	47.6°	1.7 in	6	94.3° (1981)	33.6° (2023)
May	77.5°	53.2°	0.8 in	3	104.2° (1984)	37.9° (1964)
June	85.6°	58.4°	0.2 in	1	110.5° (2017)	44.6° (1972)
July	90.5°	61.1°	0.0 in	0	112.1° (1972)	50.2° (2023)
August	89.6°	61.1°	0.1 in	0	109.2° (1971)	52.3° (1976)
September	86.1°	59.6°	0.3 in	1	117.7° (2022)	45° (1986)
October	77.2°	54.6°	1.4 in	4	106° (2020)	39.7° (1971)
November	64.8°	47.2°	3.5 in	7	88.9° (2018)	32.7° (1985)
December	57.7°	42.3°	5.3 in	9	75.2° (2021)	25.5° (1990)