As of 23:23 MDT

Weather in Castle Rock, SD

40°Current weather

Castle Rock, Thursday, 29 October, 23:23

Overcast. Feels like 36°. High 57°, low 36°.

Pressure30.15 inHg
Wind6.3 mph E
Humidity74%
Visibility6.2 mi
Dew point33°
Fri, 3054° / 36°0Overcast
54 °Overcast

Castle Rock, Friday, 30 October

Overcast. High 54°, low 36°.

Pressure30.12 inHg
Wind9 mph E
Humidity72%
Visibility6.2 mi
Dew point41°
Sat, 3165° / 46°0Overcast
65 °Overcast

Castle Rock, Saturday, 31 October

Overcast. High 65°, low 46°.

Pressure29.94 inHg
Wind13.8 mph SE
Humidity91%
Visibility6.2 mi
Dew point54°
Sun, 0157° / 44°0.11Light rain
57 °Light rain

Castle Rock, Sunday, 1 November

Light rain. High 57°, low 44°.

Pressure30.00 inHg
Wind3.8 mph E
Humidity88%
Visibility1.3 mi
Dew point46°
Mon, 0253° / 41°0.74Rain
53 °Rain

Castle Rock, Monday, 2 November

Rain. High 53°, low 41°.

Pressure29.74 inHg
Wind24 mph NW
Humidity78%
Visibility6.2 mi
Dew point44°
Tue, 0353° / 37°0.01Light rain
53 °Light rain

Castle Rock, Tuesday, 3 November

Light rain. High 53°, low 37°.

Pressure30.18 inHg
Wind18.7 mph NW
Humidity52%
Visibility—
Dew point30°
Wed, 0456° / 36°0Clear
56 °Clear

Castle Rock, Wednesday, 4 November

Clear. High 56°, low 36°.

Pressure30.03 inHg
Wind9.8 mph NW
Humidity42%
Visibility—
Dew point28°
Thu, 0550° / 41°0Overcast
50 °Overcast

Castle Rock, Thursday, 5 November

Overcast. High 50°, low 41°.

Pressure29.80 inHg
Wind13.9 mph E
Humidity58%
Visibility—
Dew point32°
Fri, 0646° / 42°0Overcast
46 °Overcast

Castle Rock, Friday, 6 November

Overcast. High 46°, low 42°.

Pressure29.97 inHg
Wind9 mph SE
Humidity65%
Visibility—
Dew point34°
Sat, 0751° / 42°0Overcast
51 °Overcast

Castle Rock, Saturday, 7 November

Overcast. High 51°, low 42°.

Pressure30.06 inHg
Wind13.8 mph SE
Humidity66%
Visibility—
Dew point38°
Sun, 0846° / 42°0Overcast
46 °Overcast

Castle Rock, Sunday, 8 November

Overcast. High 46°, low 42°.

Pressure29.94 inHg
Wind11.8 mph SE
Humidity87%
Visibility—
Dew point42°
Mon, 0952° / 39°0Mostly clear
52 °Mostly clear

Castle Rock, Monday, 9 November

Mostly clear. High 52°, low 39°.

Pressure30.06 inHg
Wind14.9 mph SE
Humidity62%
Visibility—
Dew point35°
Tue, 1054° / 41°0Overcast
54 °Overcast

Castle Rock, Tuesday, 10 November

Overcast. High 54°, low 41°.

Pressure29.83 inHg
Wind17.7 mph SE
Humidity61%
Visibility—
Dew point34°
Wed, 1156° / 42°0Overcast
56 °Overcast

Castle Rock, Wednesday, 11 November

Overcast. High 56°, low 42°.

Pressure29.47 inHg
Wind16.7 mph N
Humidity37%
Visibility—
Dew point27°
Thu, 1251° / 38°0Partly cloudy
51 °Partly cloudy

Castle Rock, Thursday, 12 November

Partly cloudy. High 51°, low 38°.

Pressure29.74 inHg
Wind14.7 mph W
Humidity33%
Visibility—
Dew point19°
Fri, 1344° / 33°0Light rain
44 °Light rain

Castle Rock, Friday, 13 November

Light rain. High 44°, low 33°.

Pressure29.65 inHg
Wind13.4 mph NW
Humidity61%
Visibility—
Dew point30°

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.