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As of 19:05 MDT

Weather in Mystic, SD

52°Current weather

Mystic, Tuesday, 20 October, 19:05

Clear. Feels like 49°. High 66°, low 39°.

Pressure30.09 inHg
Wind4.1 mph NW
Humidity46%
Visibility6.2 mi
Dew point33°
Wed, 2162° / 36°0Clear
62 °Clear

Mystic, Wednesday, 21 October

Clear. High 62°, low 36°.

Pressure30.15 inHg
Wind6 mph SE
Humidity41%
Visibility6.2 mi
Dew point38°
Thu, 2270° / 48°0.01Light rain
70 °Light rain

Mystic, Thursday, 22 October

Light rain. High 70°, low 48°.

Pressure29.94 inHg
Wind11 mph SW
Humidity42%
Visibility6.2 mi
Dew point43°
Fri, 2372° / 52°0Overcast
72 °Overcast

Mystic, Friday, 23 October

Overcast. High 72°, low 52°.

Pressure29.65 inHg
Wind8.7 mph SW
Humidity30%
Visibility6.2 mi
Dew point39°
Sat, 2445° / 31°0.03Light snow
45 °Light snow

Mystic, Saturday, 24 October

Light snow. High 45°, low 31°.

Pressure30.36 inHg
Wind7 mph N
Humidity70%
Visibility6.2 mi
Dew point26°
Sun, 2543° / 27°0Overcast
43 °Overcast

Mystic, Sunday, 25 October

Overcast. High 43°, low 27°.

Pressure30.33 inHg
Wind5.4 mph SE
Humidity56%
Visibility—
Dew point26°
Mon, 2634° / 18°0.27Snow
34 °Snow

Mystic, Monday, 26 October

Snow. High 34°, low 18°.

Pressure30.59 inHg
Wind7.2 mph NE
Humidity91%
Visibility—
Dew point26°
Tue, 2737° / 12°0Mostly clear
37 °Mostly clear

Mystic, Tuesday, 27 October

Mostly clear. High 37°, low 12°.

Pressure30.36 inHg
Wind6.9 mph W
Humidity68%
Visibility—
Dew point22°
Wed, 2838° / 19°0Overcast
38 °Overcast

Mystic, Wednesday, 28 October

Overcast. High 38°, low 19°.

Pressure30.36 inHg
Wind8.8 mph W
Humidity62%
Visibility—
Dew point23°
Thu, 2937° / 17°0Partly cloudy
37 °Partly cloudy

Mystic, Thursday, 29 October

Partly cloudy. High 37°, low 17°.

Pressure30.15 inHg
Wind9.5 mph S
Humidity72%
Visibility—
Dew point26°
Fri, 3053° / 31°0Overcast
53 °Overcast

Mystic, Friday, 30 October

Overcast. High 53°, low 31°.

Pressure29.59 inHg
Wind8.4 mph SW
Humidity41%
Visibility—
Dew point27°
Sat, 3146° / 27°0Partly cloudy
46 °Partly cloudy

Mystic, Saturday, 31 October

Partly cloudy. High 46°, low 27°.

Pressure29.47 inHg
Wind15.6 mph W
Humidity51%
Visibility—
Dew point27°
Sun, 0147° / 25°0.04Snow
47 °Snow

Mystic, Sunday, 1 November

Snow. High 47°, low 25°.

Pressure29.53 inHg
Wind19.7 mph W
Humidity43%
Visibility—
Dew point24°
Mon, 0243° / 24°0Mostly clear
43 °Mostly clear

Mystic, Monday, 2 November

Mostly clear. High 43°, low 24°.

Pressure30.27 inHg
Wind7.5 mph SW
Humidity39%
Visibility—
Dew point16°
Tue, 0357° / 29°0Overcast
57 °Overcast

Mystic, Tuesday, 3 November

Overcast. High 57°, low 29°.

Pressure30.06 inHg
Wind8.7 mph W
Humidity21%
Visibility—
Dew point15°
Wed, 0446° / 25°0Mostly clear
46 °Mostly clear

Mystic, Wednesday, 4 November

Mostly clear. High 46°, low 25°.

Pressure30.24 inHg
Wind11.5 mph SW
Humidity37%
Visibility—
Dew point17°

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 Mystic, 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 Mystic, 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.