Weather in Sunnyside, WA
Sunnyside, Thursday, 22 October, 22:50
Fog. Feels like 45°. High 57°, low 40°.
Monthly outlook for Sunnyside, WA: average high 54.1°, average low 38.6°. That is 1.9° below the climate normal for October. Precipitation is expected on 3 days (about 0.3 inches), against a normal of 4 days and 0.7 inches. The warmest day looks like 23 October (62.7°), the coolest 24 October (29°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 22 October – 31 October | 54.9° | 59° | -2.3° |
| 1 November – 10 November | 52.6° | 53.8° | -0.7° |
| 11 November – 20 November | at normal | 50° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Mabton (7 mi).
0
Sunnyside, Friday, 23 October
Clear. High 63°, low 34°.
0
Sunnyside, Saturday, 24 October
Partly cloudy. High 59°, low 29°.
0.02
Sunnyside, Sunday, 25 October
Light rain. High 59°, low 41°.
0Sunnyside, Monday, 26 October
Light rain. High 57°, low 42°.
0.04Sunnyside, Tuesday, 27 October
Light rain. High 58°, low 44°.
0.06Sunnyside, Wednesday, 28 October
Light rain. High 53°, low 41°.
0.17Sunnyside, Thursday, 29 October
Light rain. High 49°, low 42°.
0.06Sunnyside, Friday, 30 October
Light rain. High 46°, low 41°.
0
Sunnyside, Saturday, 31 October
Overcast. High 49°, low 38°.
0Sunnyside, Sunday, 1 November
Partly cloudy. High 51°, low 37°.
0Sunnyside, Monday, 2 November
Clear. High 51°, low 37°.
0Sunnyside, Tuesday, 3 November
Overcast. High 51°, low 37°.
0
Sunnyside, Wednesday, 4 November
Mostly clear. High 52°, low 38°.
0Sunnyside, Thursday, 5 November
Clear. High 54°, low 38°.
0Sunnyside, Friday, 6 November
Mostly clear. High 57°, low 40°.
0.06Sunnyside, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04Sunnyside, Sunday, 8 November
Climate normal for this date — 60-year average.
0.04Sunnyside, Monday, 9 November
Climate normal for this date — 60-year average.
0.05Sunnyside, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.05Sunnyside, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.05Sunnyside, Thursday, 12 November
Climate normal for this date — 60-year average.
0.06Sunnyside, Friday, 13 November
Climate normal for this date — 60-year average.
0.02Sunnyside, Saturday, 14 November
Climate normal for this date — 60-year average.
0.05Sunnyside, Sunday, 15 November
Climate normal for this date — 60-year average.
0.05Sunnyside, Monday, 16 November
Climate normal for this date — 60-year average.
0.06Sunnyside, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.04Sunnyside, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.08
Sunnyside, Thursday, 19 November
Climate normal for this date — 60-year average.
0.07Sunnyside, Friday, 20 November
Climate normal for this date — 60-year average.
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.
Sun and moon today
Weather history
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