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As of 16:02 MDT

Weather in Mystic, SD

45°Current weather

Mystic, Thursday, 15 October, 16:02

Clear. Feels like 38°. High 45°, low 33°.

Pressure30.42 inHg
Wind19.1 mph NW
Humidity36%
Visibility6.2 mi
Dew point23°
Fri, 1645° / 21°0Clear
45 °Clear

Mystic, Friday, 16 October

Clear. High 45°, low 21°.

Pressure30.56 inHg
Wind3.8 mph S
Humidity40%
Visibility6.2 mi
Dew point9°
Sat, 1774° / 38°0Clear
74 °Clear

Mystic, Saturday, 17 October

Clear. High 74°, low 38°.

Pressure30.03 inHg
Wind8.3 mph W
Humidity20%
Visibility6.2 mi
Dew point18°
Sun, 1856° / 40°0Overcast
56 °Overcast

Mystic, Sunday, 18 October

Overcast. High 56°, low 40°.

Pressure30.12 inHg
Wind7.3 mph NE
Humidity39%
Visibility6.2 mi
Dew point31°
Mon, 1961° / 31°0Clear
61 °Clear

Mystic, Monday, 19 October

Clear. High 61°, low 31°.

Pressure30.00 inHg
Wind5.6 mph SE
Humidity33%
Visibility6.2 mi
Dew point29°
Tue, 2067° / 43°0Clear
67 °Clear

Mystic, Tuesday, 20 October

Clear. High 67°, low 43°.

Pressure29.91 inHg
Wind9.5 mph SW
Humidity30%
Visibility—
Dew point31°
Wed, 2168° / 44°0Clear
68 °Clear

Mystic, Wednesday, 21 October

Clear. High 68°, low 44°.

Pressure29.85 inHg
Wind10.8 mph SW
Humidity29%
Visibility—
Dew point31°
Thu, 2270° / 50°0.06Light rain
70 °Light rain

Mystic, Thursday, 22 October

Light rain. High 70°, low 50°.

Pressure29.74 inHg
Wind7.5 mph SW
Humidity28%
Visibility—
Dew point33°
Fri, 2351° / 35°1.04Snow
51 °Snow

Mystic, Friday, 23 October

Snow. High 51°, low 35°.

Pressure29.62 inHg
Wind20.1 mph NW
Humidity96%
Visibility—
Dew point41°
Sat, 2439° / 28°0.01Light snow
39 °Light snow

Mystic, Saturday, 24 October

Light snow. High 39°, low 28°.

Pressure30.15 inHg
Wind23.2 mph NW
Humidity64%
Visibility—
Dew point27°
Sun, 2537° / 25°0.04Light snow
37 °Light snow

Mystic, Sunday, 25 October

Light snow. High 37°, low 25°.

Pressure30.47 inHg
Wind5.8 mph E
Humidity77%
Visibility—
Dew point30°
Mon, 2643° / 34°0.09Light rain
43 °Light rain

Mystic, Monday, 26 October

Light rain. High 43°, low 34°.

Pressure30.09 inHg
Wind14.5 mph SW
Humidity97%
Visibility—
Dew point42°
Tue, 2755° / 36°0Overcast
55 °Overcast

Mystic, Tuesday, 27 October

Overcast. High 55°, low 36°.

Pressure30.03 inHg
Wind15.3 mph SW
Humidity57%
Visibility—
Dew point35°
Wed, 2862° / 42°0Overcast
62 °Overcast

Mystic, Wednesday, 28 October

Overcast. High 62°, low 42°.

Pressure29.85 inHg
Wind13.5 mph SW
Humidity35%
Visibility—
Dew point31°
Thu, 2948° / 31°0Clear
48 °Clear

Mystic, Thursday, 29 October

Clear. High 48°, low 31°.

Pressure30.24 inHg
Wind14.9 mph NW
Humidity17%
Visibility—
Dew point2°
Fri, 3049° / 30°0Clear
49 °Clear

Mystic, Friday, 30 October

Clear. High 49°, low 30°.

Pressure30.33 inHg
Wind9.6 mph S
Humidity27%
Visibility—
Dew point14°

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.