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As of 19:06 PDT

Weather in Castle Rock, WA

76°Current weather

Castle Rock, Saturday, 8 August, 19:06

Clear. Feels like 76°. High 86°, low 58°.

Pressure30.03 inHg
Wind6 mph NW
Humidity54%
Visibility6.2 mi
Dew point59°
Sun, 0980° / 54°0Mostly clear
80 °Mostly clear

Castle Rock, Sunday, 9 August

Mostly clear. High 80°, low 54°.

Pressure30.06 inHg
Wind1.4 mph NW
Humidity38%
Visibility6.2 mi
Dew point49°
Mon, 1082° / 54°0Clear
82 °Clear

Castle Rock, Monday, 10 August

Clear. High 82°, low 54°.

Pressure30.09 inHg
Wind3.7 mph N
Humidity42%
Visibility6.2 mi
Dew point51°
Tue, 1184° / 51°0Clear
84 °Clear

Castle Rock, Tuesday, 11 August

Clear. High 84°, low 51°.

Pressure30.09 inHg
Wind3.1 mph N
Humidity42%
Visibility6.2 mi
Dew point53°
Wed, 1279° / 54°0Mostly clear
79 °Mostly clear

Castle Rock, Wednesday, 12 August

Mostly clear. High 79°, low 54°.

Pressure30.03 inHg
Wind4.4 mph W
Humidity51%
Visibility6.2 mi
Dew point53°
Thu, 1385° / 51°0Clear
85 °Clear

Castle Rock, Thursday, 13 August

Clear. High 85°, low 51°.

Pressure29.91 inHg
Wind7.7 mph N
Humidity37%
Visibility—
Dew point50°
Fri, 1491° / 54°0Clear
91 °Clear

Castle Rock, Friday, 14 August

Clear. High 91°, low 54°.

Pressure29.91 inHg
Wind5.1 mph NW
Humidity30%
Visibility—
Dew point49°
Sat, 1592° / 57°0Partly cloudy
92 °Partly cloudy

Castle Rock, Saturday, 15 August

Partly cloudy. High 92°, low 57°.

Pressure29.97 inHg
Wind5.3 mph W
Humidity27%
Visibility—
Dew point50°
Sun, 1691° / 57°0Clear
91 °Clear

Castle Rock, Sunday, 16 August

Clear. High 91°, low 57°.

Pressure29.97 inHg
Wind8.6 mph W
Humidity26%
Visibility—
Dew point48°
Mon, 1790° / 54°0Mostly clear
90 °Mostly clear

Castle Rock, Monday, 17 August

Mostly clear. High 90°, low 54°.

Pressure29.94 inHg
Wind5.8 mph W
Humidity25%
Visibility—
Dew point46°
Tue, 1883° / 54°0Overcast
83 °Overcast

Castle Rock, Tuesday, 18 August

Overcast. High 83°, low 54°.

Pressure30.00 inHg
Wind5.6 mph W
Humidity36%
Visibility—
Dew point50°
Wed, 1982° / 53°0Overcast
82 °Overcast

Castle Rock, Wednesday, 19 August

Overcast. High 82°, low 53°.

Pressure30.06 inHg
Wind8.1 mph NW
Humidity33%
Visibility—
Dew point47°
Thu, 2081° / 54°0Clear
81 °Clear

Castle Rock, Thursday, 20 August

Clear. High 81°, low 54°.

Pressure30.03 inHg
Wind9.6 mph NW
Humidity36%
Visibility—
Dew point49°
Fri, 2183° / 52°0Mostly clear
83 °Mostly clear

Castle Rock, Friday, 21 August

Mostly clear. High 83°, low 52°.

Pressure29.97 inHg
Wind6.8 mph NW
Humidity39%
Visibility—
Dew point51°
Sat, 2285° / 51°0Overcast
85 °Overcast

Castle Rock, Saturday, 22 August

Overcast. High 85°, low 51°.

Pressure29.94 inHg
Wind7.2 mph NW
Humidity33%
Visibility—
Dew point49°
Sun, 2378° / 52°0Overcast
78 °Overcast

Castle Rock, Sunday, 23 August

Overcast. High 78°, low 52°.

Pressure30.03 inHg
Wind8.5 mph NW
Humidity29%
Visibility—
Dew point40°

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 Castle Rock, 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 Castle Rock, 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.