As of 00:11 MDT

Weather in Mystic, SD

59°

Mystic, Friday, 23 October, 00:11

Overcast. Feels like 58°. High 70°, low 44°.

Pressure29.85 inHg

Wind6.7 mph SW

Humidity68%

Visibility6.2 mi

Dew point48°

See detailed hourly forecast

Sat, 2447° / 28°

47 °

Mystic, Saturday, 24 October

Mostly clear. High 47°, low 28°.

Pressure30.33 inHg

Wind5.1 mph N

Humidity46%

Visibility6.2 mi

Dew point7°

Sun, 2541° / 30°

0.09

41 °

Mystic, Sunday, 25 October

Snow. High 41°, low 30°.

Pressure30.39 inHg

Wind6.4 mph SE

Humidity67%

Visibility6.2 mi

Dew point20°

Mon, 2632° / 29°

0.46

32 °

Mystic, Monday, 26 October

Snow. High 32°, low 29°.

Pressure30.36 inHg

Wind2 mph E

Humidity99%

Visibility1.5 mi

Dew point32°

Tue, 2755° / 27°

0.02

55 °

Mystic, Tuesday, 27 October

Light rain. High 55°, low 27°.

Pressure29.88 inHg

Wind7.1 mph SW

Humidity49%

Visibility—

Dew point30°

Wed, 2839° / 26°

0.16

39 °

Mystic, Wednesday, 28 October

Snow. High 39°, low 26°.

Pressure30.03 inHg

Wind20.8 mph NW

Humidity87%

Visibility—

Dew point30°

Thu, 2945° / 25°

45 °

Mystic, Thursday, 29 October

Overcast. High 45°, low 25°.

Pressure30.09 inHg

Wind8.4 mph S

Humidity47%

Visibility—

Dew point21°

Fri, 3038° / 29°

0.03

38 °

Mystic, Friday, 30 October

Light rain. High 38°, low 29°.

Pressure29.91 inHg

Wind6 mph SE

Humidity96%

Visibility—

Dew point34°

Sat, 3140° / 26°

40 °

Mystic, Saturday, 31 October

Overcast. High 40°, low 26°.

Pressure29.80 inHg

Wind15.3 mph NW

Humidity61%

Visibility—

Dew point24°

Sun, 0141° / 25°

0.01

41 °

Mystic, Sunday, 1 November

Light snow. High 41°, low 25°.

Pressure29.94 inHg

Wind14.1 mph W

Humidity35%

Visibility—

Dew point13°

Mon, 0239° / 23°

39 °

Mystic, Monday, 2 November

Overcast. High 39°, low 23°.

Pressure30.24 inHg

Wind13 mph NW

Humidity37%

Visibility—

Dew point13°

Tue, 0345° / 20°

45 °

Mystic, Tuesday, 3 November

Clear. High 45°, low 20°.

Pressure30.39 inHg

Wind7.6 mph W

Humidity27%

Visibility—

Dew point9°

Wed, 0452° / 28°

52 °

Mystic, Wednesday, 4 November

Overcast. High 52°, low 28°.

Pressure30.24 inHg

Wind10.9 mph W

Humidity22%

Visibility—

Dew point11°

Thu, 0562° / 40°

62 °

Mystic, Thursday, 5 November

Clear. High 62°, low 40°.

Pressure30.09 inHg

Wind9.8 mph W

Humidity37%

Visibility—

Dew point32°

Fri, 0668° / 46°

68 °

Mystic, Friday, 6 November

Mostly clear. High 68°, low 46°.

Pressure29.88 inHg

Wind8.2 mph SW

Humidity22%

Visibility—

Dew point25°

Sat, 0749° / 42°

49 °

Mystic, Saturday, 7 November

Overcast. High 49°, low 42°.

Pressure29.97 inHg

Wind16.9 mph NW

Humidity38%

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.