As of 22:53 PDT

Weather in Byron, CA

58°Current weather

Byron, Sunday, 11 October, 22:53

Clear. Feels like 56°. High 71°, low 49°.

Pressure29.71 inHg
Wind24.2 mph SW
Humidity58%
Visibility6.2 mi
Dew point43°

Monthly outlook for Byron, CA: average high 79.3°, average low 54.4°. That is 2.2° above the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 2 days and 0.5 inches. The warmest day looks like 16 October (89.9°), the coolest 13 October (47.4°).

79.3°/54.4°
Average high / low
+2.2°
Above normal
0 / 2
Wet days / normal
0.0 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
11 October – 20 October80°76.5°+2°
21 October – 30 October78.1°72.2°+3.3°
31 October – 9 Novemberat normal68.3°—

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).

Mon, 1272° / 50°0Clear
72 °Clear

Byron, Monday, 12 October

Clear. High 72°, low 50°.

Pressure29.91 inHg
Wind4.1 mph N
Humidity30%
Visibility6.2 mi
Dew point35°
Tue, 1377° / 47°0Clear
77 °Clear

Byron, Tuesday, 13 October

Clear. High 77°, low 47°.

Pressure30.06 inHg
Wind9.8 mph NW
Humidity22%
Visibility6.2 mi
Dew point26°
Wed, 1481° / 51°0Clear
81 °Clear

Byron, Wednesday, 14 October

Clear. High 81°, low 51°.

Pressure30.09 inHg
Wind4.3 mph NW
Humidity22%
Visibility6.2 mi
Dew point33°
Thu, 1584° / 57°0Clear
84 °Clear

Byron, Thursday, 15 October

Clear. High 84°, low 57°.

Pressure30.06 inHg
Wind2.8 mph NE
Humidity25%
Visibility6.2 mi
Dew point36°
Fri, 1690° / 63°0Clear
90 °Clear

Byron, Friday, 16 October

Clear. High 90°, low 63°.

Pressure30.00 inHg
Wind4.8 mph W
Humidity18%
Visibility—
Dew point30°
Sat, 1790° / 59°0Clear
90 °Clear

Byron, Saturday, 17 October

Clear. High 90°, low 59°.

Pressure29.97 inHg
Wind9 mph NW
Humidity35%
Visibility—
Dew point44°
Sun, 1887° / 59°0Clear
87 °Clear

Byron, Sunday, 18 October

Clear. High 87°, low 59°.

Pressure30.00 inHg
Wind10.8 mph W
Humidity23%
Visibility—
Dew point35°
Mon, 1975° / 54°0Mostly clear
75 °Mostly clear

Byron, Monday, 19 October

Mostly clear. High 75°, low 54°.

Pressure30.06 inHg
Wind16.4 mph W
Humidity44%
Visibility—
Dew point45°
Tue, 2075° / 51°0Clear
75 °Clear

Byron, Tuesday, 20 October

Clear. High 75°, low 51°.

Pressure30.09 inHg
Wind13.4 mph N
Humidity30%
Visibility—
Dew point31°
Wed, 2178° / 52°0Clear
78 °Clear

Byron, Wednesday, 21 October

Clear. High 78°, low 52°.

Pressure30.09 inHg
Wind9 mph N
Humidity20%
Visibility—
Dew point22°
Thu, 2281° / 54°0Clear
81 °Clear

Byron, Thursday, 22 October

Clear. High 81°, low 54°.

Pressure30.06 inHg
Wind5.6 mph NE
Humidity13%
Visibility—
Dew point15°
Fri, 2379° / 58°0Overcast
79 °Overcast

Byron, Friday, 23 October

Overcast. High 79°, low 58°.

Pressure29.88 inHg
Wind6.4 mph W
Humidity21%
Visibility—
Dew point28°
Sat, 2476° / 55°0Partly cloudy
76 °Partly cloudy

Byron, Saturday, 24 October

Partly cloudy. High 76°, low 55°.

Pressure29.80 inHg
Wind5.8 mph NW
Humidity42%
Visibility—
Dew point42°
Sun, 2576° / 55°0Overcast
76 °Overcast

Byron, Sunday, 25 October

Overcast. High 76°, low 55°.

Pressure29.85 inHg
Wind7.2 mph NW
Humidity46%
Visibility—
Dew point46°
Mon, 2677° / 56°0Overcast
77 °Overcast

Byron, Monday, 26 October

Overcast. High 77°, low 56°.

Pressure29.80 inHg
Wind6.7 mph N
Humidity25%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2772° / 50°0.02Climate normal
72 °Climate normal

Byron, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high72°
Average low50°
Average precipitation0.02 in
Chance of precipitation12%
Record high85° (2017)
Record low41° (2023)
Wed, 2871° / 50°0.06Climate normal
71 °Climate normal

Byron, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high71°
Average low50°
Average precipitation0.06 in
Chance of precipitation15%
Record high85° (2003)
Record low40° (2004)
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)

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.