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As of 17:06 MDT

Weather in Castle Rock, SD

38°Current weather

Castle Rock, Monday, 26 October, 17:06

Overcast. Feels like 29°. High 38°, low 32°.

Pressure30.21 inHg
Wind13.2 mph SE
Humidity87%
Visibility6.2 mi
Dew point34°
Tue, 2758° / 32°0Clear
58 °Clear

Castle Rock, Tuesday, 27 October

Clear. High 58°, low 32°.

Pressure29.83 inHg
Wind7.2 mph W
Humidity49%
Visibility6.2 mi
Dew point37°
Wed, 2859° / 38°0Clear
59 °Clear

Castle Rock, Wednesday, 28 October

Clear. High 59°, low 38°.

Pressure29.94 inHg
Wind9.7 mph NW
Humidity39%
Visibility6.2 mi
Dew point29°
Thu, 2959° / 36°0Clear
59 °Clear

Castle Rock, Thursday, 29 October

Clear. High 59°, low 36°.

Pressure30.06 inHg
Wind2.8 mph N
Humidity46%
Visibility6.2 mi
Dew point34°
Fri, 3052° / 40°0Overcast
52 °Overcast

Castle Rock, Friday, 30 October

Overcast. High 52°, low 40°.

Pressure30.06 inHg
Wind13.8 mph E
Humidity78%
Visibility6.2 mi
Dew point43°
Sat, 3161° / 47°0Overcast
61 °Overcast

Castle Rock, Saturday, 31 October

Overcast. High 61°, low 47°.

Pressure29.85 inHg
Wind13.6 mph SE
Humidity84%
Visibility—
Dew point51°
Sun, 0156° / 42°0.01Light rain
56 °Light rain

Castle Rock, Sunday, 1 November

Light rain. High 56°, low 42°.

Pressure29.80 inHg
Wind20.1 mph NW
Humidity65%
Visibility—
Dew point40°
Mon, 0248° / 36°0Partly cloudy
48 °Partly cloudy

Castle Rock, Monday, 2 November

Partly cloudy. High 48°, low 36°.

Pressure30.06 inHg
Wind24.2 mph NW
Humidity34%
Visibility—
Dew point19°
Tue, 0339° / 35°0.02Snow
39 °Snow

Castle Rock, Tuesday, 3 November

Snow. High 39°, low 35°.

Pressure30.42 inHg
Wind22 mph NW
Humidity85%
Visibility—
Dew point31°
Wed, 0451° / 39°0Overcast
51 °Overcast

Castle Rock, Wednesday, 4 November

Overcast. High 51°, low 39°.

Pressure30.24 inHg
Wind18.1 mph SE
Humidity58%
Visibility—
Dew point33°
Thu, 0557° / 38°0Mostly clear
57 °Mostly clear

Castle Rock, Thursday, 5 November

Mostly clear. High 57°, low 38°.

Pressure29.97 inHg
Wind10 mph SE
Humidity43%
Visibility—
Dew point28°
Fri, 0662° / 41°0Overcast
62 °Overcast

Castle Rock, Friday, 6 November

Overcast. High 62°, low 41°.

Pressure29.71 inHg
Wind10.1 mph SE
Humidity24%
Visibility—
Dew point19°
Sat, 0760° / 50°0.01Light rain
60 °Light rain

Castle Rock, Saturday, 7 November

Light rain. High 60°, low 50°.

Pressure29.38 inHg
Wind20.8 mph W
Humidity27%
Visibility—
Dew point25°
Sun, 0854° / 42°0Clear
54 °Clear

Castle Rock, Sunday, 8 November

Clear. High 54°, low 42°.

Pressure29.74 inHg
Wind25.4 mph NW
Humidity26%
Visibility—
Dew point19°
Mon, 0961° / 40°0Overcast
61 °Overcast

Castle Rock, Monday, 9 November

Overcast. High 61°, low 40°.

Pressure29.85 inHg
Wind24.4 mph NW
Humidity23%
Visibility—
Dew point14°
Tue, 1054° / 41°0Clear
54 °Clear

Castle Rock, Tuesday, 10 November

Clear. High 54°, low 41°.

Pressure30.09 inHg
Wind24.2 mph NW
Humidity36%
Visibility—
Dew point24°

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.