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As of 19:13 MDT

Weather in Castle Rock, SD

60°Current weather

Castle Rock, Tuesday, 20 October, 19:13

Clear. Feels like 58°. High 74°, low 45°.

Pressure30.03 inHg
Wind6.4 mph NW
Humidity51%
Visibility6.2 mi
Dew point42°
Wed, 2169° / 43°0Overcast
69 °Overcast

Castle Rock, Wednesday, 21 October

Overcast. High 69°, low 43°.

Pressure30.21 inHg
Wind6.8 mph E
Humidity56%
Visibility6.2 mi
Dew point44°
Thu, 2277° / 51°0.01Light rain
77 °Light rain

Castle Rock, Thursday, 22 October

Light rain. High 77°, low 51°.

Pressure29.88 inHg
Wind6.6 mph SE
Humidity46%
Visibility6.2 mi
Dew point50°
Fri, 2380° / 58°0Overcast
80 °Overcast

Castle Rock, Friday, 23 October

Overcast. High 80°, low 58°.

Pressure29.62 inHg
Wind8.7 mph SE
Humidity61%
Visibility6.2 mi
Dew point58°
Sat, 2452° / 41°0Overcast
52 °Overcast

Castle Rock, Saturday, 24 October

Overcast. High 52°, low 41°.

Pressure30.36 inHg
Wind14.1 mph NW
Humidity53%
Visibility6.2 mi
Dew point29°
Sun, 2547° / 35°0Overcast
47 °Overcast

Castle Rock, Sunday, 25 October

Overcast. High 47°, low 35°.

Pressure30.42 inHg
Wind11 mph SE
Humidity51%
Visibility—
Dew point29°
Mon, 2642° / 35°0Overcast
42 °Overcast

Castle Rock, Monday, 26 October

Overcast. High 42°, low 35°.

Pressure30.62 inHg
Wind7.5 mph SE
Humidity62%
Visibility—
Dew point29°
Tue, 2751° / 31°0Clear
51 °Clear

Castle Rock, Tuesday, 27 October

Clear. High 51°, low 31°.

Pressure30.30 inHg
Wind14.8 mph SE
Humidity50%
Visibility—
Dew point26°
Wed, 2850° / 36°0Overcast
50 °Overcast

Castle Rock, Wednesday, 28 October

Overcast. High 50°, low 36°.

Pressure30.36 inHg
Wind18.2 mph NW
Humidity29%
Visibility—
Dew point14°
Thu, 2953° / 32°0Clear
53 °Clear

Castle Rock, Thursday, 29 October

Clear. High 53°, low 32°.

Pressure30.18 inHg
Wind12.2 mph SE
Humidity22%
Visibility—
Dew point9°
Fri, 3065° / 36°0Clear
65 °Clear

Castle Rock, Friday, 30 October

Clear. High 65°, low 36°.

Pressure29.62 inHg
Wind13.6 mph SE
Humidity29%
Visibility—
Dew point23°
Sat, 3154° / 38°0Overcast
54 °Overcast

Castle Rock, Saturday, 31 October

Overcast. High 54°, low 38°.

Pressure29.68 inHg
Wind10.4 mph NW
Humidity29%
Visibility—
Dew point17°
Sun, 0161° / 39°0Overcast
61 °Overcast

Castle Rock, Sunday, 1 November

Overcast. High 61°, low 39°.

Pressure29.85 inHg
Wind16.8 mph W
Humidity25%
Visibility—
Dew point19°
Mon, 0256° / 42°0Overcast
56 °Overcast

Castle Rock, Monday, 2 November

Overcast. High 56°, low 42°.

Pressure30.21 inHg
Wind17.3 mph SE
Humidity29%
Visibility—
Dew point20°
Tue, 0359° / 36°0Overcast
59 °Overcast

Castle Rock, Tuesday, 3 November

Overcast. High 59°, low 36°.

Pressure30.12 inHg
Wind15.1 mph NW
Humidity31%
Visibility—
Dew point23°
Wed, 0447° / 35°0Clear
47 °Clear

Castle Rock, Wednesday, 4 November

Clear. High 47°, low 35°.

Pressure30.39 inHg
Wind20 mph SE
Humidity34%
Visibility—
Dew point15°

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.