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As of 10:19 PDT

Weather in Sumner, WA

70°Current weather

Sumner, Saturday, 8 August, 10:19

Overcast. Feels like 70°. High 84°, low 58°.

Pressure30.09 inHg
Wind1 mph SW
Humidity74%
Visibility6.2 mi
Dew point61°
Sun, 0980° / 53°0Clear
80 °Clear

Sumner, Sunday, 9 August

Clear. High 80°, low 53°.

Pressure30.03 inHg
Wind2.5 mph W
Humidity37%
Visibility6.2 mi
Dew point49°
Mon, 1084° / 51°0Overcast
84 °Overcast

Sumner, Monday, 10 August

Overcast. High 84°, low 51°.

Pressure30.06 inHg
Wind2.7 mph W
Humidity42%
Visibility6.2 mi
Dew point51°
Tue, 1186° / 52°0Clear
86 °Clear

Sumner, Tuesday, 11 August

Clear. High 86°, low 52°.

Pressure30.12 inHg
Wind3.1 mph NW
Humidity38%
Visibility6.2 mi
Dew point51°
Wed, 1280° / 59°0Overcast
80 °Overcast

Sumner, Wednesday, 12 August

Overcast. High 80°, low 59°.

Pressure30.06 inHg
Wind3.5 mph NW
Humidity55%
Visibility—
Dew point56°
Thu, 1384° / 55°0Clear
84 °Clear

Sumner, Thursday, 13 August

Clear. High 84°, low 55°.

Pressure29.91 inHg
Wind8.5 mph N
Humidity33%
Visibility—
Dew point48°
Fri, 1490° / 55°0Clear
90 °Clear

Sumner, Friday, 14 August

Clear. High 90°, low 55°.

Pressure29.91 inHg
Wind8.3 mph W
Humidity31%
Visibility—
Dew point50°
Sat, 1582° / 56°0Overcast
82 °Overcast

Sumner, Saturday, 15 August

Overcast. High 82°, low 56°.

Pressure30.00 inHg
Wind6.5 mph W
Humidity35%
Visibility—
Dew point49°
Sun, 1686° / 57°0Overcast
86 °Overcast

Sumner, Sunday, 16 August

Overcast. High 86°, low 57°.

Pressure30.03 inHg
Wind5.1 mph N
Humidity38%
Visibility—
Dew point52°
Mon, 1791° / 58°0Overcast
91 °Overcast

Sumner, Monday, 17 August

Overcast. High 91°, low 58°.

Pressure29.94 inHg
Wind4.3 mph NE
Humidity30%
Visibility—
Dew point49°
Tue, 1883° / 61°0Overcast
83 °Overcast

Sumner, Tuesday, 18 August

Overcast. High 83°, low 61°.

Pressure30.00 inHg
Wind5.1 mph W
Humidity38%
Visibility—
Dew point52°
Wed, 1980° / 61°0Overcast
80 °Overcast

Sumner, Wednesday, 19 August

Overcast. High 80°, low 61°.

Pressure29.88 inHg
Wind7.4 mph W
Humidity39%
Visibility—
Dew point51°
Thu, 2068° / 61°0.18Rain
68 °Rain

Sumner, Thursday, 20 August

Rain. High 68°, low 61°.

Pressure30.03 inHg
Wind4.8 mph SE
Humidity95%
Visibility—
Dew point62°
Fri, 2179° / 51°0Overcast
79 °Overcast

Sumner, Friday, 21 August

Overcast. High 79°, low 51°.

Pressure30.06 inHg
Wind7.8 mph W
Humidity33%
Visibility—
Dew point43°
Sat, 2277° / 48°0Clear
77 °Clear

Sumner, Saturday, 22 August

Clear. High 77°, low 48°.

Pressure30.15 inHg
Wind6 mph NE
Humidity36%
Visibility—
Dew point44°
Sun, 2379° / 50°0Overcast
79 °Overcast

Sumner, Sunday, 23 August

Overcast. High 79°, low 50°.

Pressure30.09 inHg
Wind7.3 mph N
Humidity38%
Visibility—
Dew point47°

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 Sumner, 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 Sumner, 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.