As of 08:39 PDT

Weather in Byron, CA

58°Current weather

Byron, Tuesday, 13 October, 08:39

Clear. Feels like 56°. High 76°, low 49°.

Pressure30.06 inHg
Wind6.9 mph NW
Humidity39%
Visibility6.2 mi
Dew point34°

Monthly outlook for Byron, CA: average high 79.1°, average low 54.2°. That is 2.5° above the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 2 days and 0.6 inches. The warmest day looks like 17 October (89.4°), the coolest 13 October (49.4°).

79.1°/54.2°
Average high / low
+2.5°
Above normal
0 / 2
Wet days / normal
0.0 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
13 October – 22 October78.1°75.9°+1.2°
23 October – 1 November80.8°71.3°+5.3°
2 November – 11 Novemberat normal67.4°—

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).

Wed, 1479° / 50°0Clear
79 °Clear

Byron, Wednesday, 14 October

Clear. High 79°, low 50°.

Pressure30.12 inHg
Wind3.1 mph N
Humidity23%
Visibility6.2 mi
Dew point34°
Thu, 1583° / 56°0Clear
83 °Clear

Byron, Thursday, 15 October

Clear. High 83°, low 56°.

Pressure30.12 inHg
Wind3 mph N
Humidity20%
Visibility6.2 mi
Dew point33°
Fri, 1687° / 63°0Clear
87 °Clear

Byron, Friday, 16 October

Clear. High 87°, low 63°.

Pressure30.06 inHg
Wind3.5 mph NE
Humidity19%
Visibility6.2 mi
Dew point35°
Sat, 1789° / 66°0Clear
89 °Clear

Byron, Saturday, 17 October

Clear. High 89°, low 66°.

Pressure30.03 inHg
Wind5.2 mph NW
Humidity23%
Visibility—
Dew point37°
Sun, 1877° / 54°0Clear
77 °Clear

Byron, Sunday, 18 October

Clear. High 77°, low 54°.

Pressure30.00 inHg
Wind8.7 mph SW
Humidity51%
Visibility—
Dew point49°
Mon, 1968° / 53°0Overcast
68 °Overcast

Byron, Monday, 19 October

Overcast. High 68°, low 53°.

Pressure30.00 inHg
Wind14.4 mph W
Humidity55%
Visibility—
Dew point48°
Tue, 2069° / 50°0Clear
69 °Clear

Byron, Tuesday, 20 October

Clear. High 69°, low 50°.

Pressure30.00 inHg
Wind11.3 mph NW
Humidity43%
Visibility—
Dew point37°
Wed, 2175° / 52°0Clear
75 °Clear

Byron, Wednesday, 21 October

Clear. High 75°, low 52°.

Pressure30.03 inHg
Wind14.4 mph N
Humidity32%
Visibility—
Dew point33°
Thu, 2278° / 52°0Clear
78 °Clear

Byron, Thursday, 22 October

Clear. High 78°, low 52°.

Pressure30.15 inHg
Wind7.2 mph N
Humidity19%
Visibility—
Dew point21°
Fri, 2380° / 52°0Clear
80 °Clear

Byron, Friday, 23 October

Clear. High 80°, low 52°.

Pressure30.18 inHg
Wind16.3 mph N
Humidity19%
Visibility—
Dew point23°
Sat, 2479° / 52°0Clear
79 °Clear

Byron, Saturday, 24 October

Clear. High 79°, low 52°.

Pressure30.27 inHg
Wind6.3 mph N
Humidity13%
Visibility—
Dew point12°
Sun, 2584° / 55°0Clear
84 °Clear

Byron, Sunday, 25 October

Clear. High 84°, low 55°.

Pressure30.09 inHg
Wind6.6 mph NW
Humidity10%
Visibility—
Dew point10°
Mon, 2682° / 54°0Partly cloudy
82 °Partly cloudy

Byron, Monday, 26 October

Partly cloudy. High 82°, low 54°.

Pressure29.97 inHg
Wind5.2 mph NE
Humidity14%
Visibility—
Dew point16°
Tue, 2780° / 55°0Partly cloudy
80 °Partly cloudy

Byron, Tuesday, 27 October

Partly cloudy. High 80°, low 55°.

Pressure30.00 inHg
Wind7.2 mph NW
Humidity29%
Visibility—
Dew point34°
Wed, 2879° / 55°0Partly cloudy
79 °Partly cloudy

Byron, Wednesday, 28 October

Partly cloudy. High 79°, low 55°.

Pressure30.03 inHg
Wind4.7 mph N
Humidity37%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2970° / 50°0.05Climate normal
70 °Climate normal

Byron, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high70°
Average low50°
Average precipitation0.05 in
Chance of precipitation17%
Record high80° (1965)
Record low39° (1975)
Fri, 3069° / 49°0.06Climate normal
69 °Climate normal

Byron, Friday, 30 October

Climate normal for this date — 60-year average.

Average high69°
Average low49°
Average precipitation0.06 in
Chance of precipitation15%
Record high82° (2014)
Record low37° (1971)
Sat, 3169° / 49°0.03Climate normal
69 °Climate normal

Byron, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high69°
Average low49°
Average precipitation0.03 in
Chance of precipitation12%
Record high84° (2015)
Record low41° (1984)
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)

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.