EN
English Español

As of 02:29 MDT

Weather in Castle Rock, SD

51°Current weather

Castle Rock, Wednesday, 21 October, 02:29

Clear. Feels like 49°. High 70°, low 46°.

Pressure30.15 inHg
Wind5.1 mph N
Humidity67%
Visibility6.2 mi
Dew point41°
Thu, 2279° / 53°0.06Rain
79 °Rain

Castle Rock, Thursday, 22 October

Rain. High 79°, low 53°.

Pressure29.91 inHg
Wind5.8 mph SE
Humidity44%
Visibility6.2 mi
Dew point49°
Fri, 2382° / 55°0Overcast
82 °Overcast

Castle Rock, Friday, 23 October

Overcast. High 82°, low 55°.

Pressure29.65 inHg
Wind10.2 mph S
Humidity55%
Visibility6.2 mi
Dew point57°
Sat, 2452° / 43°0Overcast
52 °Overcast

Castle Rock, Saturday, 24 October

Overcast. High 52°, low 43°.

Pressure30.33 inHg
Wind16.5 mph NW
Humidity56%
Visibility6.2 mi
Dew point33°
Sun, 2546° / 38°0Overcast
46 °Overcast

Castle Rock, Sunday, 25 October

Overcast. High 46°, low 38°.

Pressure30.45 inHg
Wind9.2 mph E
Humidity55%
Visibility—
Dew point30°
Mon, 2645° / 39°0.17Rain
45 °Rain

Castle Rock, Monday, 26 October

Rain. High 45°, low 39°.

Pressure30.47 inHg
Wind12.5 mph SE
Humidity67%
Visibility—
Dew point32°
Tue, 2752° / 33°0.04Light rain
52 °Light rain

Castle Rock, Tuesday, 27 October

Light rain. High 52°, low 33°.

Pressure30.09 inHg
Wind23 mph SE
Humidity69%
Visibility—
Dew point33°
Wed, 2840° / 34°0Overcast
40 °Overcast

Castle Rock, Wednesday, 28 October

Overcast. High 40°, low 34°.

Pressure30.33 inHg
Wind23.3 mph NW
Humidity77%
Visibility—
Dew point30°
Thu, 2948° / 28°0Partly cloudy
48 °Partly cloudy

Castle Rock, Thursday, 29 October

Partly cloudy. High 48°, low 28°.

Pressure30.27 inHg
Wind8.7 mph W
Humidity30%
Visibility—
Dew point12°
Fri, 3053° / 34°0Clear
53 °Clear

Castle Rock, Friday, 30 October

Clear. High 53°, low 34°.

Pressure30.03 inHg
Wind21.1 mph SE
Humidity46%
Visibility—
Dew point26°
Sat, 3162° / 40°0Overcast
62 °Overcast

Castle Rock, Saturday, 31 October

Overcast. High 62°, low 40°.

Pressure29.68 inHg
Wind11.3 mph S
Humidity47%
Visibility—
Dew point34°
Sun, 0163° / 45°0Overcast
63 °Overcast

Castle Rock, Sunday, 1 November

Overcast. High 63°, low 45°.

Pressure29.83 inHg
Wind10.1 mph SE
Humidity34%
Visibility—
Dew point28°
Mon, 0266° / 47°0Overcast
66 °Overcast

Castle Rock, Monday, 2 November

Overcast. High 66°, low 47°.

Pressure29.71 inHg
Wind8.7 mph E
Humidity31%
Visibility—
Dew point29°
Tue, 0353° / 48°0.63Rain
53 °Rain

Castle Rock, Tuesday, 3 November

Rain. High 53°, low 48°.

Pressure29.44 inHg
Wind18.7 mph NE
Humidity97%
Visibility—
Dew point49°
Wed, 0447° / 30°1.57Snow
47 °Snow

Castle Rock, Wednesday, 4 November

Snow. High 47°, low 30°.

Pressure29.74 inHg
Wind23.4 mph NE
Humidity91%
Visibility—
Dew point38°
Thu, 0531° / 28°0.09Light snow
31 °Light snow

Castle Rock, Thursday, 5 November

Light snow. High 31°, low 28°.

Pressure30.27 inHg
Wind22.8 mph NW
Humidity78%
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.