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As of 00:40 MDT

Weather in Castle Rock, SD

41°Current weather

Castle Rock, Wednesday, 28 October, 00:40

Partly cloudy. Feels like 38°. High 55°, low 37°.

Pressure29.85 inHg
Wind4.5 mph S
Humidity76%
Visibility6.2 mi
Dew point34°
Thu, 2958° / 36°0Clear
58 °Clear

Castle Rock, Thursday, 29 October

Clear. High 58°, low 36°.

Pressure30.09 inHg
Wind1.5 mph NW
Humidity49%
Visibility6.2 mi
Dew point34°
Fri, 3056° / 37°0Clear
56 °Clear

Castle Rock, Friday, 30 October

Clear. High 56°, low 37°.

Pressure30.15 inHg
Wind12.3 mph E
Humidity63%
Visibility6.2 mi
Dew point39°
Sat, 3168° / 49°0.03Light rain
68 °Light rain

Castle Rock, Saturday, 31 October

Light rain. High 68°, low 49°.

Pressure29.94 inHg
Wind9.9 mph S
Humidity70%
Visibility6.2 mi
Dew point53°
Sun, 0163° / 46°0.07Light rain
63 °Light rain

Castle Rock, Sunday, 1 November

Light rain. High 63°, low 46°.

Pressure29.77 inHg
Wind18.7 mph SE
Humidity59%
Visibility—
Dew point46°
Mon, 0245° / 39°0.09Light rain
45 °Light rain

Castle Rock, Monday, 2 November

Light rain. High 45°, low 39°.

Pressure30.09 inHg
Wind25.8 mph NW
Humidity66%
Visibility—
Dew point33°
Tue, 0346° / 34°0Overcast
46 °Overcast

Castle Rock, Tuesday, 3 November

Overcast. High 46°, low 34°.

Pressure30.12 inHg
Wind16.4 mph NW
Humidity33%
Visibility—
Dew point15°
Wed, 0441° / 38°0.15Light rain
41 °Light rain

Castle Rock, Wednesday, 4 November

Light rain. High 41°, low 38°.

Pressure30.09 inHg
Wind14.8 mph NW
Humidity84%
Visibility—
Dew point35°
Thu, 0543° / 41°0.15Light rain
43 °Light rain

Castle Rock, Thursday, 5 November

Light rain. High 43°, low 41°.

Pressure30.09 inHg
Wind9.1 mph N
Humidity91%
Visibility—
Dew point40°
Fri, 0642° / 40°0Light rain
42 °Light rain

Castle Rock, Friday, 6 November

Light rain. High 42°, low 40°.

Pressure30.21 inHg
Wind9 mph NW
Humidity84%
Visibility—
Dew point36°
Sat, 0746° / 40°0Overcast
46 °Overcast

Castle Rock, Saturday, 7 November

Overcast. High 46°, low 40°.

Pressure30.12 inHg
Wind14.8 mph SE
Humidity80%
Visibility—
Dew point37°
Sun, 0855° / 38°0Overcast
55 °Overcast

Castle Rock, Sunday, 8 November

Overcast. High 55°, low 38°.

Pressure29.74 inHg
Wind15.2 mph SE
Humidity59%
Visibility—
Dew point34°
Mon, 0950° / 31°0Light snow
50 °Light snow

Castle Rock, Monday, 9 November

Light snow. High 50°, low 31°.

Pressure29.74 inHg
Wind19.4 mph N
Humidity67%
Visibility—
Dew point35°
Tue, 1041° / 28°0Overcast
41 °Overcast

Castle Rock, Tuesday, 10 November

Overcast. High 41°, low 28°.

Pressure30.36 inHg
Wind17.6 mph NW
Humidity51%
Visibility—
Dew point18°
Wed, 1150° / 32°0Mostly clear
50 °Mostly clear

Castle Rock, Wednesday, 11 November

Mostly clear. High 50°, low 32°.

Pressure30.18 inHg
Wind16.7 mph NW
Humidity27%
Visibility—
Dew point14°
Thu, 1251° / 35°0Partly cloudy
51 °Partly cloudy

Castle Rock, Thursday, 12 November

Partly cloudy. High 51°, low 35°.

Pressure29.97 inHg
Wind7.7 mph S
Humidity33%
Visibility—
Dew point21°

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.