As of 16:00 PDT

Weather in Sunnyside, WA

66°Current weather

Sunnyside, Tuesday, 20 October, 16:00

Partly cloudy. Feels like 64°. High 66°, low 41°.

Pressure30.06 inHg
Wind0 mph N
Humidity34%
Visibility6.2 mi
Dew point36°

Monthly outlook for Sunnyside, WA: average high 59.7°, average low 41.6°. That is 0.6° above the climate normal for October. Precipitation is expected on 1 day (about 0.5 inches), against a normal of 4 days and 0.7 inches. The warmest day looks like 21 October (67°), the coolest 24 October (39.8°).

59.7°/41.6°
Average high / low
+0.6°
Above normal
1 / 4
Wet days / normal
0.5 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
20 October – 29 October62.3°60.5°+1°
30 October – 8 November55.2°54.7°+0.3°
9 November – 18 Novemberat normal50.8°—

October records over 66 years

90.1°6 October 2014All-time high
21.2°30 October 2019All-time low

Climate normals and records are computed from the nearest reference point — Mabton (7 mi).

Wed, 2167° / 40°0Partly cloudy
67 °Partly cloudy

Sunnyside, Wednesday, 21 October

Partly cloudy. High 67°, low 40°.

Pressure30.00 inHg
Wind2.6 mph SW
Humidity36%
Visibility6.2 mi
Dew point34°
Thu, 2264° / 40°0Overcast
64 °Overcast

Sunnyside, Thursday, 22 October

Overcast. High 64°, low 40°.

Pressure29.88 inHg
Wind1.7 mph SW
Humidity43%
Visibility6.2 mi
Dew point36°
Fri, 2363° / 40°0Clear
63 °Clear

Sunnyside, Friday, 23 October

Clear. High 63°, low 40°.

Pressure30.21 inHg
Wind6.6 mph W
Humidity38%
Visibility6.2 mi
Dew point31°
Sat, 2460° / 40°0Overcast
60 °Overcast

Sunnyside, Saturday, 24 October

Overcast. High 60°, low 40°.

Pressure30.24 inHg
Wind2 mph S
Humidity39%
Visibility6.2 mi
Dew point25°
Sun, 2563° / 42°0Overcast
63 °Overcast

Sunnyside, Sunday, 25 October

Overcast. High 63°, low 42°.

Pressure30.27 inHg
Wind4.7 mph NE
Humidity36%
Visibility—
Dew point28°
Mon, 2660° / 43°0Partly cloudy
60 °Partly cloudy

Sunnyside, Monday, 26 October

Partly cloudy. High 60°, low 43°.

Pressure30.39 inHg
Wind5.1 mph NE
Humidity39%
Visibility—
Dew point28°
Tue, 2759° / 41°0Mostly clear
59 °Mostly clear

Sunnyside, Tuesday, 27 October

Mostly clear. High 59°, low 41°.

Pressure30.27 inHg
Wind4.3 mph NW
Humidity30%
Visibility—
Dew point21°
Wed, 2859° / 42°0Overcast
59 °Overcast

Sunnyside, Wednesday, 28 October

Overcast. High 59°, low 42°.

Pressure30.18 inHg
Wind3.5 mph NW
Humidity30%
Visibility—
Dew point22°
Thu, 2962° / 43°0Partly cloudy
62 °Partly cloudy

Sunnyside, Thursday, 29 October

Partly cloudy. High 62°, low 43°.

Pressure30.03 inHg
Wind5.5 mph SE
Humidity30%
Visibility—
Dew point22°
Fri, 3063° / 42°0Overcast
63 °Overcast

Sunnyside, Friday, 30 October

Overcast. High 63°, low 42°.

Pressure29.80 inHg
Wind5.4 mph NW
Humidity37%
Visibility—
Dew point28°
Sat, 3163° / 41°0Partly cloudy
63 °Partly cloudy

Sunnyside, Saturday, 31 October

Partly cloudy. High 63°, low 41°.

Pressure29.71 inHg
Wind18 mph W
Humidity47%
Visibility—
Dew point31°
Sun, 0157° / 41°0Clear
57 °Clear

Sunnyside, Sunday, 1 November

Clear. High 57°, low 41°.

Pressure30.00 inHg
Wind9.2 mph W
Humidity44%
Visibility—
Dew point29°
Mon, 0254° / 40°0Overcast
54 °Overcast

Sunnyside, Monday, 2 November

Overcast. High 54°, low 40°.

Pressure30.18 inHg
Wind3.2 mph SE
Humidity45%
Visibility—
Dew point27°
Tue, 0350° / 46°0.03Light rain
50 °Light rain

Sunnyside, Tuesday, 3 November

Light rain. High 50°, low 46°.

Pressure30.18 inHg
Wind4.4 mph NW
Humidity68%
Visibility—
Dew point37°
Wed, 0445° / 43°0.48Rain
45 °Rain

Sunnyside, Wednesday, 4 November

Rain. High 45°, low 43°.

Pressure29.94 inHg
Wind4.3 mph NW
Humidity93%
Visibility—
Dew point41°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 0555° / 39°0.04Climate normal
55 °Climate normal

Sunnyside, 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 low19° (1973)
Fri, 0654° / 38°0.06Climate normal
54 °Climate normal

Sunnyside, Friday, 6 November

Climate normal for this date — 60-year average.

Average high54°
Average low38°
Average precipitation0.06 in
Chance of precipitation28%
Record high69° (2006)
Record low23° (2003)
Sat, 0754° / 38°0.06Climate normal
54 °Climate normal

Sunnyside, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high54°
Average low38°
Average precipitation0.06 in
Chance of precipitation28%
Record high70° (1978)
Record low21° (1973)
Sun, 0852° / 38°0.04Climate normal
52 °Climate normal

Sunnyside, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high52°
Average low38°
Average precipitation0.04 in
Chance of precipitation23%
Record high64° (1995)
Record low28° (2003)
Mon, 0952° / 37°0.04Climate normal
52 °Climate normal

Sunnyside, Monday, 9 November

Climate normal for this date — 60-year average.

Average high52°
Average low37°
Average precipitation0.04 in
Chance of precipitation18%
Record high66° (2016)
Record low26° (2020)
Tue, 1051° / 37°0.05Climate normal
51 °Climate normal

Sunnyside, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high51°
Average low37°
Average precipitation0.05 in
Chance of precipitation32%
Record high66° (1989)
Record low19° (1986)
Wed, 1152° / 37°0.05Climate normal
52 °Climate normal

Sunnyside, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high52°
Average low37°
Average precipitation0.05 in
Chance of precipitation25%
Record high70° (1990)
Record low22° (1985)
Thu, 1252° / 37°0.05Climate normal
52 °Climate normal

Sunnyside, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high52°
Average low37°
Average precipitation0.05 in
Chance of precipitation20%
Record high70° (1999)
Record low14° (1985)
Fri, 1351° / 37°0.06Climate normal
51 °Climate normal

Sunnyside, Friday, 13 November

Climate normal for this date — 60-year average.

Average high51°
Average low37°
Average precipitation0.06 in
Chance of precipitation32%
Record high70° (1999)
Record low16° (1985)
Sat, 1451° / 37°0.02Climate normal
51 °Climate normal

Sunnyside, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high51°
Average low37°
Average precipitation0.02 in
Chance of precipitation18%
Record high67° (2001)
Record low18° (1985)
Sun, 1550° / 36°0.05Climate normal
50 °Climate normal

Sunnyside, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high50°
Average low36°
Average precipitation0.05 in
Chance of precipitation28%
Record high66° (2021)
Record low20° (1985)
Mon, 1650° / 36°0.05Climate normal
50 °Climate normal

Sunnyside, Monday, 16 November

Climate normal for this date — 60-year average.

Average high50°
Average low36°
Average precipitation0.05 in
Chance of precipitation28%
Record high65° (1976)
Record low20° (2014)
Tue, 1750° / 36°0.06Climate normal
50 °Climate normal

Sunnyside, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high50°
Average low36°
Average precipitation0.06 in
Chance of precipitation30%
Record high68° (2019)
Record low19° (2014)
Wed, 1849° / 35°0.04Climate normal
49 °Climate normal

Sunnyside, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high49°
Average low35°
Average precipitation0.04 in
Chance of precipitation20%
Record high60° (2003)
Record low18° (1985)

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 Sunnyside, 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 Sunnyside, 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.