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As of 15:50 MDT

Weather in Mystic, SD

54°Current weather

Mystic, Friday, 16 October, 15:50

Clear. Feels like 49°. High 54°, low 23°.

Pressure30.45 inHg
Wind7.8 mph W
Humidity14%
Visibility6.2 mi
Dew point8°
Sat, 1764° / 38°0Clear
64 °Clear

Mystic, Saturday, 17 October

Clear. High 64°, low 38°.

Pressure30.03 inHg
Wind8.4 mph W
Humidity20%
Visibility6.2 mi
Dew point19°
Sun, 1858° / 38°0Clear
58 °Clear

Mystic, Sunday, 18 October

Clear. High 58°, low 38°.

Pressure30.09 inHg
Wind8.2 mph NE
Humidity36%
Visibility6.2 mi
Dew point30°
Mon, 1961° / 36°0Clear
61 °Clear

Mystic, Monday, 19 October

Clear. High 61°, low 36°.

Pressure30.03 inHg
Wind6.8 mph SE
Humidity32%
Visibility6.2 mi
Dew point27°
Tue, 2067° / 45°0Clear
67 °Clear

Mystic, Tuesday, 20 October

Clear. High 67°, low 45°.

Pressure29.88 inHg
Wind7.7 mph SW
Humidity33%
Visibility6.2 mi
Dew point37°
Wed, 2161° / 43°0Clear
61 °Clear

Mystic, Wednesday, 21 October

Clear. High 61°, low 43°.

Pressure30.12 inHg
Wind9.3 mph NW
Humidity40%
Visibility—
Dew point35°
Thu, 2265° / 43°0.01Light rain
65 °Light rain

Mystic, Thursday, 22 October

Light rain. High 65°, low 43°.

Pressure29.85 inHg
Wind12.5 mph SE
Humidity42%
Visibility—
Dew point39°
Fri, 2356° / 34°0.01Light rain
56 °Light rain

Mystic, Friday, 23 October

Light rain. High 56°, low 34°.

Pressure29.50 inHg
Wind23.6 mph SW
Humidity46%
Visibility—
Dew point34°
Sat, 2437° / 30°0Overcast
37 °Overcast

Mystic, Saturday, 24 October

Overcast. High 37°, low 30°.

Pressure30.24 inHg
Wind19.5 mph W
Humidity69%
Visibility—
Dew point27°
Sun, 2542° / 24°0Overcast
42 °Overcast

Mystic, Sunday, 25 October

Overcast. High 42°, low 24°.

Pressure30.30 inHg
Wind5.7 mph W
Humidity41%
Visibility—
Dew point16°
Mon, 2653° / 25°0Clear
53 °Clear

Mystic, Monday, 26 October

Clear. High 53°, low 25°.

Pressure30.18 inHg
Wind8 mph SW
Humidity32%
Visibility—
Dew point19°
Tue, 2757° / 37°0Overcast
57 °Overcast

Mystic, Tuesday, 27 October

Overcast. High 57°, low 37°.

Pressure29.77 inHg
Wind12.3 mph S
Humidity50%
Visibility—
Dew point36°
Wed, 2853° / 42°0Clear
53 °Clear

Mystic, Wednesday, 28 October

Clear. High 53°, low 42°.

Pressure29.56 inHg
Wind23.4 mph W
Humidity26%
Visibility—
Dew point15°
Thu, 2948° / 32°0.01Light rain
48 °Light rain

Mystic, Thursday, 29 October

Light rain. High 48°, low 32°.

Pressure29.91 inHg
Wind31.1 mph W
Humidity61%
Visibility—
Dew point30°
Fri, 3055° / 33°0Overcast
55 °Overcast

Mystic, Friday, 30 October

Overcast. High 55°, low 33°.

Pressure29.97 inHg
Wind13.7 mph SW
Humidity26%
Visibility—
Dew point17°
Sat, 3156° / 38°0Partly cloudy
56 °Partly cloudy

Mystic, Saturday, 31 October

Partly cloudy. High 56°, low 38°.

Pressure29.62 inHg
Wind18.6 mph W
Humidity28%
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 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.