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As of 03:14 MST

Weather in Castle Rock, SD

42°Current weather

Castle Rock, Thursday, 12 November, 03:14

Partly cloudy. Feels like 42°. High 51°, low 34°.

Pressure30.09 inHg
Wind1.8 mph NE
Humidity76%
Visibility6.2 mi
Dew point36°
Fri, 1350° / 28°0Clear
50 °Clear

Castle Rock, Friday, 13 November

Clear. High 50°, low 28°.

Pressure29.91 inHg
Wind13.4 mph SE
Humidity63%
Visibility6.2 mi
Dew point34°
Sat, 1452° / 38°0Overcast
52 °Overcast

Castle Rock, Saturday, 14 November

Overcast. High 52°, low 38°.

Pressure29.83 inHg
Wind19.5 mph SE
Humidity62%
Visibility6.2 mi
Dew point39°
Sun, 1561° / 36°0Clear
61 °Clear

Castle Rock, Sunday, 15 November

Clear. High 61°, low 36°.

Pressure29.97 inHg
Wind3 mph SW
Humidity52%
Visibility6.2 mi
Dew point40°
Mon, 1659° / 40°0Clear
59 °Clear

Castle Rock, Monday, 16 November

Clear. High 59°, low 40°.

Pressure29.97 inHg
Wind5.5 mph E
Humidity55%
Visibility—
Dew point37°
Tue, 1753° / 38°0Overcast
53 °Overcast

Castle Rock, Tuesday, 17 November

Overcast. High 53°, low 38°.

Pressure29.97 inHg
Wind12.1 mph NW
Humidity59%
Visibility—
Dew point35°
Wed, 1858° / 41°0Clear
58 °Clear

Castle Rock, Wednesday, 18 November

Clear. High 58°, low 41°.

Pressure29.74 inHg
Wind8.7 mph E
Humidity35%
Visibility—
Dew point26°
Thu, 1944° / 38°0.01Light rain
44 °Light rain

Castle Rock, Thursday, 19 November

Light rain. High 44°, low 38°.

Pressure29.88 inHg
Wind19.6 mph W
Humidity93%
Visibility—
Dew point38°
Fri, 2046° / 34°0Overcast
46 °Overcast

Castle Rock, Friday, 20 November

Overcast. High 46°, low 34°.

Pressure30.06 inHg
Wind11.5 mph E
Humidity65%
Visibility—
Dew point31°
Sat, 2139° / 31°0.5Snow
39 °Snow

Castle Rock, Saturday, 21 November

Snow. High 39°, low 31°.

Pressure29.83 inHg
Wind16 mph E
Humidity94%
Visibility—
Dew point37°
Sun, 2231° / 23°0.22Snow
31 °Snow

Castle Rock, Sunday, 22 November

Snow. High 31°, low 23°.

Pressure30.12 inHg
Wind17.9 mph NW
Humidity86%
Visibility—
Dew point24°
Mon, 2332° / 22°0Overcast
32 °Overcast

Castle Rock, Monday, 23 November

Overcast. High 32°, low 22°.

Pressure29.88 inHg
Wind20.3 mph NW
Humidity86%
Visibility—
Dew point27°
Tue, 2423° / 11°0.08Light snow
23 °Light snow

Castle Rock, Tuesday, 24 November

Light snow. High 23°, low 11°.

Pressure30.09 inHg
Wind16.8 mph W
Humidity93%
Visibility—
Dew point21°
Wed, 2517° / 5°0Overcast
17 °Overcast

Castle Rock, Wednesday, 25 November

Overcast. High 17°, low 5°.

Pressure30.45 inHg
Wind8.7 mph NW
Humidity68%
Visibility—
Dew point5°
Thu, 2625° / 12°0Overcast
25 °Overcast

Castle Rock, Thursday, 26 November

Overcast. High 25°, low 12°.

Pressure30.30 inHg
Wind11 mph NW
Humidity81%
Visibility—
Dew point14°
Fri, 2716° / 14°0.08Light snow
16 °Light snow

Castle Rock, Friday, 27 November

Light snow. High 16°, low 14°.

Pressure30.53 inHg
Wind8.7 mph NW
Humidity90%
Visibility—
Dew point12°

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.