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As of 00:35 MDT

Weather in Mystic, SD

59°Current weather

Mystic, Thursday, 22 October, 00:35

Overcast. Feels like 58°. High 69°, low 45°.

Pressure30.09 inHg
Wind12.3 mph SW
Humidity56%
Visibility6.2 mi
Dew point44°
Fri, 2369° / 52°0Mostly clear
69 °Mostly clear

Mystic, Friday, 23 October

Mostly clear. High 69°, low 52°.

Pressure29.68 inHg
Wind12.4 mph W
Humidity34%
Visibility6.2 mi
Dew point40°
Sat, 2449° / 30°0Clear
49 °Clear

Mystic, Saturday, 24 October

Clear. High 49°, low 30°.

Pressure30.33 inHg
Wind5.3 mph N
Humidity52%
Visibility6.2 mi
Dew point17°
Sun, 2532° / 29°0.12Snow
32 °Snow

Mystic, Sunday, 25 October

Snow. High 32°, low 29°.

Pressure30.45 inHg
Wind7.3 mph SE
Humidity99%
Visibility5.5 mi
Dew point30°
Mon, 2638° / 29°0Light snow
38 °Light snow

Mystic, Monday, 26 October

Light snow. High 38°, low 29°.

Pressure30.42 inHg
Wind5.3 mph E
Humidity81%
Visibility—
Dew point32°
Tue, 2744° / 25°0.06Light snow
44 °Light snow

Mystic, Tuesday, 27 October

Light snow. High 44°, low 25°.

Pressure30.27 inHg
Wind8.2 mph NW
Humidity62%
Visibility—
Dew point29°
Wed, 2844° / 14°0Clear
44 °Clear

Mystic, Wednesday, 28 October

Clear. High 44°, low 14°.

Pressure30.39 inHg
Wind10.2 mph SW
Humidity60%
Visibility—
Dew point25°
Thu, 2960° / 34°0Overcast
60 °Overcast

Mystic, Thursday, 29 October

Overcast. High 60°, low 34°.

Pressure29.80 inHg
Wind15.5 mph SW
Humidity31%
Visibility—
Dew point25°
Fri, 3060° / 42°0Overcast
60 °Overcast

Mystic, Friday, 30 October

Overcast. High 60°, low 42°.

Pressure29.59 inHg
Wind9.3 mph W
Humidity24%
Visibility—
Dew point20°
Sat, 3149° / 32°0Overcast
49 °Overcast

Mystic, Saturday, 31 October

Overcast. High 49°, low 32°.

Pressure29.56 inHg
Wind8.8 mph NW
Humidity44%
Visibility—
Dew point27°
Sun, 0140° / 25°0Clear
40 °Clear

Mystic, Sunday, 1 November

Clear. High 40°, low 25°.

Pressure30.06 inHg
Wind14 mph NW
Humidity38%
Visibility—
Dew point15°
Mon, 0249° / 26°0Overcast
49 °Overcast

Mystic, Monday, 2 November

Overcast. High 49°, low 26°.

Pressure30.21 inHg
Wind10.4 mph NW
Humidity25%
Visibility—
Dew point11°
Tue, 0358° / 36°0Mostly clear
58 °Mostly clear

Mystic, Tuesday, 3 November

Mostly clear. High 58°, low 36°.

Pressure29.97 inHg
Wind14.1 mph SW
Humidity15%
Visibility—
Dew point8°
Wed, 0451° / 35°0Overcast
51 °Overcast

Mystic, Wednesday, 4 November

Overcast. High 51°, low 35°.

Pressure29.56 inHg
Wind26.5 mph NW
Humidity45%
Visibility—
Dew point30°
Thu, 0552° / 32°0Overcast
52 °Overcast

Mystic, Thursday, 5 November

Overcast. High 52°, low 32°.

Pressure29.77 inHg
Wind19.9 mph NW
Humidity39%
Visibility—
Dew point25°
Fri, 0660° / 45°0Clear
60 °Clear

Mystic, Friday, 6 November

Clear. High 60°, low 45°.

Pressure29.91 inHg
Wind15.3 mph NW
Humidity46%
Visibility—
Dew point37°

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.