As of 09:58 PDT

Weather in Byron, CA

75°Current weather

Byron, Friday, 16 October, 09:58

Clear. Feels like 74°. High 91°, low 54°.

Pressure30.09 inHg
Wind5.7 mph N
Humidity27%
Visibility6.2 mi
Dew point39°

Monthly outlook for Byron, CA: average high 72.9°, average low 52.6°. That is 0.1° below the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 2 days and 0.6 inches. The warmest day looks like 17 October (92.2°), the coolest 29 October (49°).

72.9°/52.6°
Average high / low
−0.1°
Below normal
1 / 2
Wet days / normal
0.1 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
16 October – 25 October73.9°74.8°-0.5°
26 October – 4 November71.3°70.1°+0.6°
5 November – 14 Novemberat normal65.8°—

October records over 66 years

105.3°2 October 2024All-time high
36.7°30 October 1971All-time low

Climate normals and records are computed from the nearest reference point — Mountain House (9 mi).

Sat, 1792° / 58°0Clear
92 °Clear

Byron, Saturday, 17 October

Clear. High 92°, low 58°.

Pressure30.06 inHg
Wind3 mph NE
Humidity22%
Visibility6.2 mi
Dew point40°
Sun, 1883° / 55°0Clear
83 °Clear

Byron, Sunday, 18 October

Clear. High 83°, low 55°.

Pressure29.94 inHg
Wind0.4 mph W
Humidity31%
Visibility6.2 mi
Dew point46°
Mon, 1969° / 53°0Clear
69 °Clear

Byron, Monday, 19 October

Clear. High 69°, low 53°.

Pressure29.94 inHg
Wind9.7 mph SW
Humidity40%
Visibility6.2 mi
Dew point41°
Tue, 2063° / 55°0.05Light rain
63 °Light rain

Byron, Tuesday, 20 October

Light rain. High 63°, low 55°.

Pressure29.88 inHg
Wind5.5 mph N
Humidity69%
Visibility—
Dew point49°
Wed, 2168° / 53°0Overcast
68 °Overcast

Byron, Wednesday, 21 October

Overcast. High 68°, low 53°.

Pressure29.94 inHg
Wind4.3 mph W
Humidity50%
Visibility—
Dew point44°
Thu, 2265° / 56°0.01Light rain
65 °Light rain

Byron, Thursday, 22 October

Light rain. High 65°, low 56°.

Pressure29.94 inHg
Wind9.6 mph SW
Humidity60%
Visibility—
Dew point50°
Fri, 2363° / 52°0Overcast
63 °Overcast

Byron, Friday, 23 October

Overcast. High 63°, low 52°.

Pressure30.03 inHg
Wind9.8 mph W
Humidity59%
Visibility—
Dew point45°
Sat, 2473° / 51°0Clear
73 °Clear

Byron, Saturday, 24 October

Clear. High 73°, low 51°.

Pressure30.09 inHg
Wind11.3 mph W
Humidity47%
Visibility—
Dew point43°
Sun, 2572° / 49°0Overcast
72 °Overcast

Byron, Sunday, 25 October

Overcast. High 72°, low 49°.

Pressure30.09 inHg
Wind9.3 mph W
Humidity45%
Visibility—
Dew point40°
Mon, 2670° / 51°0Partly cloudy
70 °Partly cloudy

Byron, Monday, 26 October

Partly cloudy. High 70°, low 51°.

Pressure29.88 inHg
Wind13.2 mph N
Humidity55%
Visibility—
Dew point44°
Tue, 2772° / 52°0Clear
72 °Clear

Byron, Tuesday, 27 October

Clear. High 72°, low 52°.

Pressure29.85 inHg
Wind8.7 mph W
Humidity36%
Visibility—
Dew point36°
Wed, 2871° / 52°0Overcast
71 °Overcast

Byron, Wednesday, 28 October

Overcast. High 71°, low 52°.

Pressure30.03 inHg
Wind12.6 mph SW
Humidity64%
Visibility—
Dew point51°
Thu, 2971° / 49°0Clear
71 °Clear

Byron, Thursday, 29 October

Clear. High 71°, low 49°.

Pressure30.00 inHg
Wind15.7 mph N
Humidity34%
Visibility—
Dew point32°
Fri, 3072° / 50°0Clear
72 °Clear

Byron, Friday, 30 October

Clear. High 72°, low 50°.

Pressure30.00 inHg
Wind6 mph W
Humidity35%
Visibility—
Dew point33°
Sat, 3172° / 51°0Overcast
72 °Overcast

Byron, Saturday, 31 October

Overcast. High 72°, low 51°.

Pressure30.06 inHg
Wind5.5 mph W
Humidity43%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0169° / 49°0.03Climate normal
69 °Climate normal

Byron, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high69°
Average low49°
Average precipitation0.03 in
Chance of precipitation12%
Record high81° (2020)
Record low39° (1984)
Mon, 0269° / 49°0.03Climate normal
69 °Climate normal

Byron, Monday, 2 November

Climate normal for this date — 60-year average.

Average high69°
Average low49°
Average precipitation0.03 in
Chance of precipitation12%
Record high82° (2020)
Record low38° (2003)
Tue, 0370° / 49°0.03Climate normal
70 °Climate normal

Byron, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high70°
Average low49°
Average precipitation0.03 in
Chance of precipitation15%
Record high84° (2018)
Record low39° (1961)
Wed, 0469° / 49°0.02Climate normal
69 °Climate normal

Byron, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high69°
Average low49°
Average precipitation0.02 in
Chance of precipitation7%
Record high83° (2018)
Record low37° (1973)
Thu, 0569° / 48°0.06Climate normal
69 °Climate normal

Byron, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high69°
Average low48°
Average precipitation0.06 in
Chance of precipitation12%
Record high82° (2020)
Record low40° (2011)
Fri, 0668° / 49°0.04Climate normal
68 °Climate normal

Byron, Friday, 6 November

Climate normal for this date — 60-year average.

Average high68°
Average low49°
Average precipitation0.04 in
Chance of precipitation18%
Record high79° (2012)
Record low39° (1972)
Sat, 0767° / 48°0.06Climate normal
67 °Climate normal

Byron, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high67°
Average low48°
Average precipitation0.06 in
Chance of precipitation22%
Record high78° (1991)
Record low39° (1971)
Sun, 0866° / 47°0.06Climate normal
66 °Climate normal

Byron, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high66°
Average low47°
Average precipitation0.06 in
Chance of precipitation17%
Record high77° (2019)
Record low38° (2011)
Mon, 0966° / 46°0.06Climate normal
66 °Climate normal

Byron, Monday, 9 November

Climate normal for this date — 60-year average.

Average high66°
Average low46°
Average precipitation0.06 in
Chance of precipitation22%
Record high79° (1976)
Record low35° (2020)
Tue, 1065° / 47°0.08Climate normal
65 °Climate normal

Byron, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high65°
Average low47°
Average precipitation0.08 in
Chance of precipitation35%
Record high77° (2019)
Record low37° (2020)
Wed, 1165° / 47°0.08Climate normal
65 °Climate normal

Byron, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high65°
Average low47°
Average precipitation0.08 in
Chance of precipitation25%
Record high77° (1990)
Record low35° (2000)
Thu, 1264° / 46°0.07Climate normal
64 °Climate normal

Byron, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high64°
Average low46°
Average precipitation0.07 in
Chance of precipitation17%
Record high78° (1990)
Record low33° (1985)
Fri, 1364° / 47°0.1Climate normal
64 °Climate normal

Byron, Friday, 13 November

Climate normal for this date — 60-year average.

Average high64°
Average low47°
Average precipitation0.1 in
Chance of precipitation28%
Record high77° (1990)
Record low30° (2000)
Sat, 1464° / 46°0.06Climate normal
64 °Climate normal

Byron, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high64°
Average low46°
Average precipitation0.06 in
Chance of precipitation18%
Record high75° (1995)
Record low34° (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 Byron, 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 Byron, 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.