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As of 19:21 MDT

Weather in Castle Rock, SD

41°Current weather

Castle Rock, Saturday, 24 October, 19:21

Overcast. Feels like 39°. High 52°, low 38°.

Pressure30.33 inHg
Wind3.8 mph E
Humidity40%
Visibility6.2 mi
Dew point23°
Sun, 2548° / 37°0.01Light rain
48 °Light rain

Castle Rock, Sunday, 25 October

Light rain. High 48°, low 37°.

Pressure30.42 inHg
Wind12.3 mph E
Humidity53%
Visibility6.2 mi
Dew point26°
Mon, 2639° / 31°0.21Snow
39 °Snow

Castle Rock, Monday, 26 October

Snow. High 39°, low 31°.

Pressure30.42 inHg
Wind11.2 mph E
Humidity98%
Visibility1.6 mi
Dew point35°
Tue, 2745° / 31°0Light rain
45 °Light rain

Castle Rock, Tuesday, 27 October

Light rain. High 45°, low 31°.

Pressure29.88 inHg
Wind16 mph SE
Humidity81%
Visibility6.2 mi
Dew point33°
Wed, 2859° / 36°0Clear
59 °Clear

Castle Rock, Wednesday, 28 October

Clear. High 59°, low 36°.

Pressure30.00 inHg
Wind5.7 mph SW
Humidity40%
Visibility6.2 mi
Dew point32°
Thu, 2961° / 37°0Partly cloudy
61 °Partly cloudy

Castle Rock, Thursday, 29 October

Partly cloudy. High 61°, low 37°.

Pressure30.00 inHg
Wind9.7 mph SE
Humidity57%
Visibility—
Dew point37°
Fri, 3058° / 44°0Overcast
58 °Overcast

Castle Rock, Friday, 30 October

Overcast. High 58°, low 44°.

Pressure30.00 inHg
Wind11.9 mph NW
Humidity77%
Visibility—
Dew point43°
Sat, 3167° / 47°0Overcast
67 °Overcast

Castle Rock, Saturday, 31 October

Overcast. High 67°, low 47°.

Pressure29.71 inHg
Wind11 mph NW
Humidity40%
Visibility—
Dew point35°
Sun, 0161° / 45°0Overcast
61 °Overcast

Castle Rock, Sunday, 1 November

Overcast. High 61°, low 45°.

Pressure29.94 inHg
Wind6.6 mph NW
Humidity37%
Visibility—
Dew point29°
Mon, 0258° / 42°0Clear
58 °Clear

Castle Rock, Monday, 2 November

Clear. High 58°, low 42°.

Pressure30.21 inHg
Wind9.7 mph SE
Humidity22%
Visibility—
Dew point15°
Tue, 0366° / 43°0Clear
66 °Clear

Castle Rock, Tuesday, 3 November

Clear. High 66°, low 43°.

Pressure29.80 inHg
Wind12.4 mph SW
Humidity38%
Visibility—
Dew point33°
Wed, 0455° / 45°0Clear
55 °Clear

Castle Rock, Wednesday, 4 November

Clear. High 55°, low 45°.

Pressure29.91 inHg
Wind19.1 mph NW
Humidity31%
Visibility—
Dew point22°
Thu, 0564° / 40°0Partly cloudy
64 °Partly cloudy

Castle Rock, Thursday, 5 November

Partly cloudy. High 64°, low 40°.

Pressure29.80 inHg
Wind12.5 mph SE
Humidity22%
Visibility—
Dew point18°
Fri, 0666° / 53°0Overcast
66 °Overcast

Castle Rock, Friday, 6 November

Overcast. High 66°, low 53°.

Pressure29.68 inHg
Wind18.2 mph W
Humidity24%
Visibility—
Dew point27°
Sat, 0760° / 46°0Overcast
60 °Overcast

Castle Rock, Saturday, 7 November

Overcast. High 60°, low 46°.

Pressure29.85 inHg
Wind18.5 mph NW
Humidity41%
Visibility—
Dew point32°
Sun, 0864° / 44°0Mostly clear
64 °Mostly clear

Castle Rock, Sunday, 8 November

Mostly clear. High 64°, low 44°.

Pressure30.06 inHg
Wind14.2 mph NW
Humidity41%
Visibility—
Dew point35°

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, SD 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, SD 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.