10-day forecast for Sunnyside, WA: 56° to 99°, with precipitation expected on 1 day. The table below breaks each day into morning, afternoon, evening and overnight.
99°
Best day: Saturday, August 15
72° · 0.19 in
Worst day: Monday, August 17
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1095° / 59°0
Morning67°feels 65°
Afternoon86°feels 83°
Evening84°feels 81°
Overnight64°feels 62°
95 °
Sunnyside, Monday, 10 August
Clear. High 95°, low 59°.
Pressure29.88 inHg
Wind2.2 mph S
Humidity22%
Visibility6.2 mi
Dew point41°
Tue, 1195° / 62°0
Morning70°feels 69°
Afternoon90°feels 86°
Evening85°feels 82°
Overnight66°feels 65°
95 °
Sunnyside, Tuesday, 11 August
Clear. High 95°, low 62°.
Pressure29.94 inHg
Wind2.9 mph SW
Humidity24%
Visibility6.2 mi
Dew point43°
Wed, 1293° / 65°0
Morning71°feels 70°
Afternoon90°feels 86°
Evening84°feels 82°
Overnight68°feels 67°
93 °
Sunnyside, Wednesday, 12 August
Clear. High 93°, low 65°.
Pressure29.83 inHg
Wind4 mph W
Humidity25%
Visibility6.2 mi
Dew point45°
Thu, 1392° / 64°0
Morning77°feels 75°
Afternoon88°feels 85°
Evening83°feels 81°
Overnight76°feels 75°
92 °
Sunnyside, Thursday, 13 August
Clear. High 92°, low 64°.
Pressure29.74 inHg
Wind6.8 mph NW
Humidity21%
Visibility—
Dew point42°
Fri, 1495° / 67°0
Morning79°feels 77°
Afternoon91°feels 87°
Evening84°feels 81°
Overnight76°feels 75°
95 °
Sunnyside, Friday, 14 August
Clear. High 95°, low 67°.
Pressure29.80 inHg
Wind5.9 mph NW
Humidity18%
Visibility—
Dew point40°
Sat, 1599° / 66°0
Morning79°feels 77°
Afternoon94°feels 89°
Evening85°feels 82°
Overnight76°feels 74°
99 °
Sunnyside, Saturday, 15 August
Mostly clear. High 99°, low 66°.
Pressure29.83 inHg
Wind9 mph SW
Humidity15%
Visibility—
Dew point38°
Sun, 1694° / 67°0
Morning79°feels 76°
Afternoon90°feels 86°
Evening73°feels 72°
Overnight70°feels 69°
94 °
Sunnyside, Sunday, 16 August
Overcast. High 94°, low 67°.
Pressure29.80 inHg
Wind12.6 mph SW
Humidity13%
Visibility—
Dew point33°
Mon, 1772° / 61°0.19
Morning65°feels 65°
Afternoon67°feels 67°
Evening66°feels 65°
Overnight62°feels 61°
72 °
Sunnyside, Monday, 17 August
Light rain. High 72°, low 61°.
Pressure30.00 inHg
Wind15.7 mph SW
Humidity66%
Visibility—
Dew point55°
Tue, 1883° / 56°0
Morning67°feels 65°
Afternoon80°feels 79°
Evening74°feels 73°
Overnight67°feels 66°
83 °
Sunnyside, Tuesday, 18 August
Clear. High 83°, low 56°.
Pressure29.88 inHg
Wind8.3 mph W
Humidity31%
Visibility—
Dew point44°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Sunnyside, WA around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.