As of 18:05 PDT

Weather in Byron, WA

57°Current weather

Byron, Saturday, 10 October, 18:05

Mostly clear. Feels like 54°. High 58°, low 44°.

Pressure29.77 inHg
Wind2 mph S
Humidity43%
Visibility6.2 mi
Dew point34°

Monthly outlook for Byron, WA: average high 67.4°, average low 48.3°. That is 1.6° above the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 2 days and 0.4 inches. The warmest day looks like 15 October (75.1°), the coolest 11 October (38°).

67.4°/48.3°
Average high / low
+1.6°
Above normal
0 / 2
Wet days / normal
0.0 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
10 October – 19 October67.9°65.8°+1.1°
20 October – 29 October66.6°60.6°+3.4°
30 October – 8 Novemberat normal54.9°—

October records over 66 years

90.3°6 October 2014All-time high
21.6°30 October 2019All-time low

Climate normals and records are computed from the nearest reference point — Prosser (5 mi).

Sun, 1162° / 38°0Mostly clear
62 °Mostly clear

Byron, Sunday, 11 October

Mostly clear. High 62°, low 38°.

Pressure29.91 inHg
Wind11.4 mph N
Humidity36%
Visibility6.2 mi
Dew point25°
Mon, 1265° / 44°0Clear
65 °Clear

Byron, Monday, 12 October

Clear. High 65°, low 44°.

Pressure30.06 inHg
Wind4.2 mph NW
Humidity34%
Visibility6.2 mi
Dew point26°
Tue, 1368° / 43°0Clear
68 °Clear

Byron, Tuesday, 13 October

Clear. High 68°, low 43°.

Pressure30.15 inHg
Wind1.6 mph W
Humidity36%
Visibility6.2 mi
Dew point30°
Wed, 1471° / 50°0Clear
71 °Clear

Byron, Wednesday, 14 October

Clear. High 71°, low 50°.

Pressure30.21 inHg
Wind1.5 mph SW
Humidity32%
Visibility6.2 mi
Dew point33°
Thu, 1575° / 54°0Clear
75 °Clear

Byron, Thursday, 15 October

Clear. High 75°, low 54°.

Pressure30.39 inHg
Wind4.3 mph NE
Humidity32%
Visibility—
Dew point35°
Fri, 1666° / 51°0Partly cloudy
66 °Partly cloudy

Byron, Friday, 16 October

Partly cloudy. High 66°, low 51°.

Pressure30.42 inHg
Wind6.7 mph NE
Humidity27%
Visibility—
Dew point27°
Sat, 1767° / 50°0Overcast
67 °Overcast

Byron, Saturday, 17 October

Overcast. High 67°, low 50°.

Pressure30.21 inHg
Wind4.4 mph SE
Humidity26%
Visibility—
Dew point24°
Sun, 1873° / 50°0Clear
73 °Clear

Byron, Sunday, 18 October

Clear. High 73°, low 50°.

Pressure30.06 inHg
Wind5 mph W
Humidity26%
Visibility—
Dew point27°
Mon, 1973° / 54°0.02Light rain
73 °Light rain

Byron, Monday, 19 October

Light rain. High 73°, low 54°.

Pressure30.00 inHg
Wind14.1 mph NW
Humidity43%
Visibility—
Dew point40°
Tue, 2065° / 49°0Mostly clear
65 °Mostly clear

Byron, Tuesday, 20 October

Mostly clear. High 65°, low 49°.

Pressure30.06 inHg
Wind17.6 mph W
Humidity43%
Visibility—
Dew point36°
Wed, 2163° / 45°0Partly cloudy
63 °Partly cloudy

Byron, Wednesday, 21 October

Partly cloudy. High 63°, low 45°.

Pressure30.24 inHg
Wind6.6 mph NE
Humidity50%
Visibility—
Dew point36°
Thu, 2265° / 48°0Overcast
65 °Overcast

Byron, Thursday, 22 October

Overcast. High 65°, low 48°.

Pressure30.30 inHg
Wind5.9 mph NW
Humidity42%
Visibility—
Dew point34°
Fri, 2368° / 47°0Clear
68 °Clear

Byron, Friday, 23 October

Clear. High 68°, low 47°.

Pressure30.15 inHg
Wind4.5 mph SE
Humidity38%
Visibility—
Dew point33°
Sat, 2470° / 51°0Overcast
70 °Overcast

Byron, Saturday, 24 October

Overcast. High 70°, low 51°.

Pressure30.00 inHg
Wind4.3 mph E
Humidity35%
Visibility—
Dew point33°
Sun, 2569° / 54°0Overcast
69 °Overcast

Byron, Sunday, 25 October

Overcast. High 69°, low 54°.

Pressure30.03 inHg
Wind3.6 mph NW
Humidity37%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2659° / 43°0.03Climate normal
59 °Climate normal

Byron, Monday, 26 October

Climate normal for this date — 60-year average.

Average high59°
Average low43°
Average precipitation0.03 in
Chance of precipitation23%
Record high74° (1986)
Record low25° (2020)
Tue, 2758° / 40°0.05Climate normal
58 °Climate normal

Byron, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high58°
Average low40°
Average precipitation0.05 in
Chance of precipitation18%
Record high76° (2003)
Record low30° (2020)
Wed, 2857° / 40°0.04Climate normal
57 °Climate normal

Byron, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high57°
Average low40°
Average precipitation0.04 in
Chance of precipitation30%
Record high73° (2003)
Record low29° (2023)
Thu, 2957° / 40°0.05Climate normal
57 °Climate normal

Byron, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high57°
Average low40°
Average precipitation0.05 in
Chance of precipitation25%
Record high74° (1965)
Record low24° (1971)
Fri, 3056° / 39°0.04Climate normal
56 °Climate normal

Byron, Friday, 30 October

Climate normal for this date — 60-year average.

Average high56°
Average low39°
Average precipitation0.04 in
Chance of precipitation23%
Record high71° (1967)
Record low22° (2019)
Sat, 3156° / 40°0.05Climate normal
56 °Climate normal

Byron, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high56°
Average low40°
Average precipitation0.05 in
Chance of precipitation22%
Record high72° (1967)
Record low23° (2006)
Sun, 0155° / 39°0.05Climate normal
55 °Climate normal

Byron, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high55°
Average low39°
Average precipitation0.05 in
Chance of precipitation28%
Record high68° (1965)
Record low21° (2002)
Mon, 0255° / 39°0.03Climate normal
55 °Climate normal

Byron, Monday, 2 November

Climate normal for this date — 60-year average.

Average high55°
Average low39°
Average precipitation0.03 in
Chance of precipitation17%
Record high67° (1993)
Record low23° (2002)
Tue, 0356° / 39°0.02Climate normal
56 °Climate normal

Byron, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high56°
Average low39°
Average precipitation0.02 in
Chance of precipitation17%
Record high71° (1983)
Record low24° (2002)
Wed, 0456° / 40°0.06Climate normal
56 °Climate normal

Byron, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high56°
Average low40°
Average precipitation0.06 in
Chance of precipitation27%
Record high70° (2020)
Record low26° (2003)
Thu, 0555° / 39°0.04Climate normal
55 °Climate normal

Byron, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high55°
Average low39°
Average precipitation0.04 in
Chance of precipitation23%
Record high69° (2012)
Record low22° (2003)
Fri, 0654° / 38°0.05Climate normal
54 °Climate normal

Byron, Friday, 6 November

Climate normal for this date — 60-year average.

Average high54°
Average low38°
Average precipitation0.05 in
Chance of precipitation28%
Record high70° (2006)
Record low23° (2003)
Sat, 0754° / 38°0.06Climate normal
54 °Climate normal

Byron, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high54°
Average low38°
Average precipitation0.06 in
Chance of precipitation27%
Record high71° (1978)
Record low22° (1973)
Sun, 0852° / 37°0.04Climate normal
52 °Climate normal

Byron, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high52°
Average low37°
Average precipitation0.04 in
Chance of precipitation25%
Record high64° (1995)
Record low28° (2003)

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, WA 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, WA 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.