As of 14:05 PDT

Weather in Sunnyside, WA

64°Current weather

Sunnyside, Saturday, 17 October, 14:05

Partly cloudy. Feels like 63°. High 66°, low 42°.

Pressure30.12 inHg
Wind0 mph N
Humidity45%
Visibility6.2 mi
Dew point42°

Monthly outlook for Sunnyside, WA: average high 62.6°, average low 44°. That is 1.2° above the climate normal for October. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 21 October (68.5°), the coolest 18 October (34.9°).

62.6°/44°
Average high / low
+1.2°
Above normal
2 / 3
Wet days / normal
0.2 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
17 October – 26 October65.4°62.8°+1.4°
27 October – 5 November57.9°56°+1.1°
6 November – 15 Novemberat normal51.8°—

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).

Sun, 1866° / 35°0Mostly clear
66 °Mostly clear

Sunnyside, Sunday, 18 October

Mostly clear. High 66°, low 35°.

Pressure30.12 inHg
Wind1.7 mph SW
Humidity36%
Visibility6.2 mi
Dew point29°
Mon, 1962° / 39°0Overcast
62 °Overcast

Sunnyside, Monday, 19 October

Overcast. High 62°, low 39°.

Pressure29.94 inHg
Wind2.5 mph SW
Humidity36%
Visibility6.2 mi
Dew point27°
Tue, 2067° / 46°0Mostly clear
67 °Mostly clear

Sunnyside, Tuesday, 20 October

Mostly clear. High 67°, low 46°.

Pressure30.06 inHg
Wind2.5 mph NW
Humidity29%
Visibility6.2 mi
Dew point29°
Wed, 2169° / 49°0Clear
69 °Clear

Sunnyside, Wednesday, 21 October

Clear. High 69°, low 49°.

Pressure29.97 inHg
Wind2 mph S
Humidity30%
Visibility6.2 mi
Dew point30°
Thu, 2268° / 48°0Partly cloudy
68 °Partly cloudy

Sunnyside, Thursday, 22 October

Partly cloudy. High 68°, low 48°.

Pressure29.88 inHg
Wind9.3 mph W
Humidity42%
Visibility—
Dew point35°
Fri, 2364° / 42°0Clear
64 °Clear

Sunnyside, Friday, 23 October

Clear. High 64°, low 42°.

Pressure30.15 inHg
Wind4.9 mph W
Humidity45%
Visibility—
Dew point33°
Sat, 2463° / 46°0Overcast
63 °Overcast

Sunnyside, Saturday, 24 October

Overcast. High 63°, low 46°.

Pressure30.15 inHg
Wind3.5 mph W
Humidity40%
Visibility—
Dew point32°
Sun, 2565° / 47°0Overcast
65 °Overcast

Sunnyside, Sunday, 25 October

Overcast. High 65°, low 47°.

Pressure30.12 inHg
Wind2.1 mph NW
Humidity36%
Visibility—
Dew point30°
Mon, 2664° / 48°0Overcast
64 °Overcast

Sunnyside, Monday, 26 October

Overcast. High 64°, low 48°.

Pressure29.94 inHg
Wind2.6 mph NW
Humidity33%
Visibility—
Dew point28°
Tue, 2766° / 49°0Overcast
66 °Overcast

Sunnyside, Tuesday, 27 October

Overcast. High 66°, low 49°.

Pressure29.68 inHg
Wind3.2 mph SE
Humidity33%
Visibility—
Dew point30°
Wed, 2867° / 50°0.02Light rain
67 °Light rain

Sunnyside, Wednesday, 28 October

Light rain. High 67°, low 50°.

Pressure29.65 inHg
Wind24.2 mph S
Humidity38%
Visibility—
Dew point34°
Thu, 2955° / 41°0Overcast
55 °Overcast

Sunnyside, Thursday, 29 October

Overcast. High 55°, low 41°.

Pressure29.83 inHg
Wind21.7 mph SW
Humidity46%
Visibility—
Dew point33°
Fri, 3050° / 39°0.1Light rain
50 °Light rain

Sunnyside, Friday, 30 October

Light rain. High 50°, low 39°.

Pressure29.68 inHg
Wind10.6 mph SW
Humidity68%
Visibility—
Dew point39°
Sat, 3152° / 41°0.06Light rain
52 °Light rain

Sunnyside, Saturday, 31 October

Light rain. High 52°, low 41°.

Pressure29.47 inHg
Wind23.7 mph SW
Humidity80%
Visibility—
Dew point37°
Sun, 0156° / 41°0Partly cloudy
56 °Partly cloudy

Sunnyside, Sunday, 1 November

Partly cloudy. High 56°, low 41°.

Pressure30.00 inHg
Wind19.5 mph SW
Humidity48%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0255° / 39°0.04Climate normal
55 °Climate normal

Sunnyside, Monday, 2 November

Climate normal for this date — 60-year average.

Average high55°
Average low39°
Average precipitation0.04 in
Chance of precipitation23%
Record high67° (1993)
Record low22° (2002)
Tue, 0356° / 39°0.02Climate normal
56 °Climate normal

Sunnyside, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high56°
Average low39°
Average precipitation0.02 in
Chance of precipitation13%
Record high70° (1983)
Record low23° (2002)
Wed, 0456° / 40°0.07Climate normal
56 °Climate normal

Sunnyside, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high56°
Average low40°
Average precipitation0.07 in
Chance of precipitation33%
Record high70° (2020)
Record low25° (2003)
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)

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.