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As of 06:37 MDT

Weather in Castle Rock, SD

40°Current weather

Castle Rock, Saturday, 24 October, 06:37

Partly cloudy. Feels like 30°. High 52°, low 39°.

Pressure30.36 inHg
Wind20.3 mph NW
Humidity73%
Visibility6.2 mi
Dew point32°
Sun, 2547° / 39°0.01Light rain
47 °Light rain

Castle Rock, Sunday, 25 October

Light rain. High 47°, low 39°.

Pressure30.42 inHg
Wind12.3 mph SE
Humidity58%
Visibility6.2 mi
Dew point29°
Mon, 2640° / 31°0.44Snow
40 °Snow

Castle Rock, Monday, 26 October

Snow. High 40°, low 31°.

Pressure30.39 inHg
Wind8.5 mph E
Humidity100%
Visibility0.3 mi
Dew point35°
Tue, 2748° / 30°0Mostly clear
48 °Mostly clear

Castle Rock, Tuesday, 27 October

Mostly clear. High 48°, low 30°.

Pressure29.85 inHg
Wind9.5 mph SE
Humidity77%
Visibility6.2 mi
Dew point34°
Wed, 2858° / 35°0Clear
58 °Clear

Castle Rock, Wednesday, 28 October

Clear. High 58°, low 35°.

Pressure29.97 inHg
Wind11.7 mph W
Humidity37%
Visibility—
Dew point28°
Thu, 2965° / 37°0Partly cloudy
65 °Partly cloudy

Castle Rock, Thursday, 29 October

Partly cloudy. High 65°, low 37°.

Pressure29.91 inHg
Wind13.8 mph SE
Humidity53%
Visibility—
Dew point36°
Fri, 3064° / 47°0Overcast
64 °Overcast

Castle Rock, Friday, 30 October

Overcast. High 64°, low 47°.

Pressure29.91 inHg
Wind21.7 mph SE
Humidity65%
Visibility—
Dew point46°
Sat, 3157° / 46°0Overcast
57 °Overcast

Castle Rock, Saturday, 31 October

Overcast. High 57°, low 46°.

Pressure29.91 inHg
Wind12.2 mph NW
Humidity73%
Visibility—
Dew point44°
Sun, 0154° / 40°0Overcast
54 °Overcast

Castle Rock, Sunday, 1 November

Overcast. High 54°, low 40°.

Pressure30.06 inHg
Wind16.3 mph NW
Humidity57%
Visibility—
Dew point37°
Mon, 0246° / 35°0Overcast
46 °Overcast

Castle Rock, Monday, 2 November

Overcast. High 46°, low 35°.

Pressure30.39 inHg
Wind22.8 mph NW
Humidity33%
Visibility—
Dew point15°
Tue, 0353° / 31°0Clear
53 °Clear

Castle Rock, Tuesday, 3 November

Clear. High 53°, low 31°.

Pressure30.45 inHg
Wind11.5 mph NW
Humidity25%
Visibility—
Dew point11°
Wed, 0448° / 36°0Overcast
48 °Overcast

Castle Rock, Wednesday, 4 November

Overcast. High 48°, low 36°.

Pressure30.24 inHg
Wind14.8 mph NW
Humidity22%
Visibility—
Dew point9°
Thu, 0534° / 22°0.02Light snow
34 °Light snow

Castle Rock, Thursday, 5 November

Light snow. High 34°, low 22°.

Pressure30.45 inHg
Wind9.8 mph NE
Humidity74%
Visibility—
Dew point24°
Fri, 0641° / 19°0Overcast
41 °Overcast

Castle Rock, Friday, 6 November

Overcast. High 41°, low 19°.

Pressure30.36 inHg
Wind23.3 mph SE
Humidity43%
Visibility—
Dew point11°
Sat, 0755° / 39°0.03Light rain
55 °Light rain

Castle Rock, Saturday, 7 November

Light rain. High 55°, low 39°.

Pressure29.77 inHg
Wind19.8 mph NW
Humidity42%
Visibility—
Dew point30°
Sun, 0855° / 45°0Clear
55 °Clear

Castle Rock, Sunday, 8 November

Clear. High 55°, low 45°.

Pressure30.12 inHg
Wind26.2 mph W
Humidity45%
Visibility—
Dew point30°

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.