As of 19:00 PDT

Weather in Arena, CA

80°

Arena, Friday, 9 October, 19:00

Clear. Feels like 80°. High 85°, low 62°.

Pressure29.62 inHg

Wind6.2 mph SW

Humidity42%

Visibility6.2 mi

Dew point53°

See detailed hourly forecast

Monthly outlook for Arena, CA: average high 82°, average low 55.3°. That is 1.9° above the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 1 days and 0.4 inches. The warmest day looks like 17 October (92.6°), the coolest 23 October (48.7°).

82°/55.3°

Average high / low

+1.9°

Above normal

0 / 1

Wet days / normal

0.0 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
9 October – 18 October	82.6°	79.4°	+1.8°
19 October – 28 October	81°	75.6°	+3°
29 October – 7 November	at normal	70.6°	—

October records over 66 years

106.5°3 October 2024All-time high

37.9°30 October 1971All-time low

Climate normals and records are computed from the nearest reference point — Merced (12 mi).

Sat, 1079° / 56°

79 °

Arena, Saturday, 10 October

Clear. High 79°, low 56°.

Pressure29.62 inHg

Wind6.4 mph SW

Humidity38%

Visibility6.2 mi

Dew point50°

Sun, 1178° / 51°

78 °

Arena, Sunday, 11 October

Clear. High 78°, low 51°.

Pressure29.50 inHg

Wind6.3 mph NW

Humidity32%

Visibility6.2 mi

Dew point40°

Mon, 1273° / 56°

73 °

Arena, Monday, 12 October

Mostly clear. High 73°, low 56°.

Pressure29.85 inHg

Wind2.8 mph S

Humidity40%

Visibility6.2 mi

Dew point45°

Tue, 1375° / 55°

75 °

Arena, Tuesday, 13 October

Clear. High 75°, low 55°.

Pressure29.97 inHg

Wind4.4 mph NW

Humidity29%

Visibility6.2 mi

Dew point35°

Wed, 1480° / 53°

80 °

Arena, Wednesday, 14 October

Clear. High 80°, low 53°.

Pressure30.12 inHg

Wind4.3 mph NW

Humidity27%

Visibility—

Dew point33°

Thu, 1585° / 55°

85 °

Arena, Thursday, 15 October

Clear. High 85°, low 55°.

Pressure30.09 inHg

Wind5.1 mph N

Humidity22%

Visibility—

Dew point31°

Fri, 1689° / 57°

89 °

Arena, Friday, 16 October

Clear. High 89°, low 57°.

Pressure30.09 inHg

Wind7.4 mph NW

Humidity16%

Visibility—

Dew point26°

Sat, 1793° / 59°

93 °

Arena, Saturday, 17 October

Clear. High 93°, low 59°.

Pressure30.00 inHg

Wind7.2 mph N

Humidity14%

Visibility—

Dew point26°

Sun, 1889° / 61°

89 °

Arena, Sunday, 18 October

Overcast. High 89°, low 61°.

Pressure29.91 inHg

Wind9.3 mph NW

Humidity15%

Visibility—

Dew point26°

Mon, 1983° / 55°

83 °

Arena, Monday, 19 October

Clear. High 83°, low 55°.

Pressure29.94 inHg

Wind8.1 mph N

Humidity25%

Visibility—

Dew point34°

Tue, 2079° / 54°

79 °

Arena, Tuesday, 20 October

Overcast. High 79°, low 54°.

Pressure29.97 inHg

Wind11.8 mph NW

Humidity30%

Visibility—

Dew point35°

Wed, 2183° / 53°

83 °

Arena, Wednesday, 21 October

Clear. High 83°, low 53°.

Pressure30.03 inHg

Wind7.2 mph NW

Humidity16%

Visibility—

Dew point22°

Thu, 2278° / 57°

78 °

Arena, Thursday, 22 October

Clear. High 78°, low 57°.

Pressure30.03 inHg

Wind16.2 mph NW

Humidity37%

Visibility—

Dew point42°

Fri, 2377° / 49°

77 °

Arena, Friday, 23 October

Clear. High 77°, low 49°.

Pressure30.06 inHg

Wind11.1 mph NW

Humidity17%

Visibility—

Dew point18°

Sat, 2485° / 53°

85 °

Arena, Saturday, 24 October

Clear. High 85°, low 53°.

Pressure30.09 inHg

Wind5.5 mph N

Humidity14%

Visibility—

Dew point19°

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

Sun, 2575° / 53°

0.06

75 °

Arena, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high75°

Average low53°

Average precipitation0.06 in

Chance of precipitation13%

Record high89° (2019)

Record low43° (1975)

Mon, 2674° / 51°

0.06

74 °

Arena, Monday, 26 October

Climate normal for this date — 60-year average.

Average high74°

Average low51°

Average precipitation0.06 in

Chance of precipitation12%

Record high87° (2003)

Record low42° (1971)

Tue, 2773° / 51°

0.01

73 °

Arena, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high73°

Average low51°

Average precipitation0.01 in

Chance of precipitation2%

Record high87° (2003)

Record low43° (2010)

Wed, 2873° / 51°

0.06

73 °

Arena, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high73°

Average low51°

Average precipitation0.06 in

Chance of precipitation13%

Record high86° (2003)

Record low41° (2019)

Thu, 2972° / 51°

0.06

72 °

Arena, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high72°

Average low51°

Average precipitation0.06 in

Chance of precipitation13%

Record high85° (2003)

Record low40° (1971)

Fri, 3071° / 50°

0.07

71 °

Arena, Friday, 30 October

Climate normal for this date — 60-year average.

Average high71°

Average low50°

Average precipitation0.07 in

Chance of precipitation15%

Record high83° (2014)

Record low38° (1971)

Sat, 3171° / 49°

0.02

71 °

Arena, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high71°

Average low49°

Average precipitation0.02 in

Chance of precipitation10%

Record high83° (2015)

Record low38° (2019)

Sun, 0171° / 49°

0.03

71 °

Arena, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high71°

Average low49°

Average precipitation0.03 in

Chance of precipitation10%

Record high83° (2020)

Record low37° (2019)

Mon, 0271° / 48°

0.04

71 °

Arena, Monday, 2 November

Climate normal for this date — 60-year average.

Average high71°

Average low48°

Average precipitation0.04 in

Chance of precipitation12%

Record high83° (2020)

Record low40° (2019)

Tue, 0371° / 49°

0.03

71 °

Arena, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high71°

Average low49°

Average precipitation0.03 in

Chance of precipitation12%

Record high83° (2020)

Record low39° (2019)

Wed, 0471° / 49°

0.03

71 °

Arena, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high71°

Average low49°

Average precipitation0.03 in

Chance of precipitation8%

Record high83° (1976)

Record low38° (1973)

Thu, 0570° / 49°

0.04

70 °

Arena, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high70°

Average low49°

Average precipitation0.04 in

Chance of precipitation10%

Record high86° (2010)

Record low41° (2003)

Fri, 0670° / 49°

0.04

70 °

Arena, Friday, 6 November

Climate normal for this date — 60-year average.

Average high70°

Average low49°

Average precipitation0.04 in

Chance of precipitation15%

Record high83° (2012)

Record low39° (1996)

Sat, 0769° / 48°

0.06

69 °

Arena, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high69°

Average low48°

Average precipitation0.06 in

Chance of precipitation23%

Record high81° (2006)

Record low39° (1996)

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 Arena, 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 Arena, 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.