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As of 08:35 MDT

Weather in Marcus, SD

60°Current weather

Marcus, Wednesday, 7 October, 08:35

Partly cloudy. Feels like 58°. High 78°, low 50°.

Pressure30.06 inHg
Wind4.8 mph NW
Humidity53%
Visibility6.2 mi
Dew point43°
Thu, 0875° / 45°0Overcast
75 °Overcast

Marcus, Thursday, 8 October

Overcast. High 75°, low 45°.

Pressure30.00 inHg
Wind10 mph SE
Humidity38%
Visibility6.2 mi
Dew point39°
Fri, 0987° / 49°0Partly cloudy
87 °Partly cloudy

Marcus, Friday, 9 October

Partly cloudy. High 87°, low 49°.

Pressure29.62 inHg
Wind6.8 mph S
Humidity39%
Visibility6.2 mi
Dew point52°
Sat, 1088° / 65°0Clear
88 °Clear

Marcus, Saturday, 10 October

Clear. High 88°, low 65°.

Pressure29.44 inHg
Wind7.2 mph W
Humidity18%
Visibility6.2 mi
Dew point37°
Sun, 1160° / 44°0.14Light rain
60 °Light rain

Marcus, Sunday, 11 October

Light rain. High 60°, low 44°.

Pressure30.00 inHg
Wind17 mph N
Humidity90%
Visibility—
Dew point44°
Mon, 1241° / 38°0.22Light rain
41 °Light rain

Marcus, Monday, 12 October

Light rain. High 41°, low 38°.

Pressure30.24 inHg
Wind11 mph N
Humidity85%
Visibility—
Dew point34°
Tue, 1359° / 38°0Overcast
59 °Overcast

Marcus, Tuesday, 13 October

Overcast. High 59°, low 38°.

Pressure30.15 inHg
Wind18.2 mph SE
Humidity57%
Visibility—
Dew point34°
Wed, 1466° / 55°0Overcast
66 °Overcast

Marcus, Wednesday, 14 October

Overcast. High 66°, low 55°.

Pressure29.50 inHg
Wind19.5 mph S
Humidity77%
Visibility—
Dew point54°
Thu, 1558° / 37°2.29Heavy rain
58 °Heavy rain

Marcus, Thursday, 15 October

Heavy rain. High 58°, low 37°.

Pressure29.80 inHg
Wind32.6 mph N
Humidity95%
Visibility—
Dew point39°
Fri, 1642° / 37°0.24Light rain
42 °Light rain

Marcus, Friday, 16 October

Light rain. High 42°, low 37°.

Pressure30.18 inHg
Wind30.2 mph NW
Humidity76%
Visibility—
Dew point33°
Sat, 1745° / 38°0Overcast
45 °Overcast

Marcus, Saturday, 17 October

Overcast. High 45°, low 38°.

Pressure30.27 inHg
Wind17.7 mph NW
Humidity72%
Visibility—
Dew point33°
Sun, 1854° / 38°0Clear
54 °Clear

Marcus, Sunday, 18 October

Clear. High 54°, low 38°.

Pressure30.18 inHg
Wind5.4 mph W
Humidity52%
Visibility—
Dew point31°
Mon, 1965° / 43°0Clear
65 °Clear

Marcus, Monday, 19 October

Clear. High 65°, low 43°.

Pressure29.97 inHg
Wind8.4 mph E
Humidity49%
Visibility—
Dew point37°
Tue, 2065° / 47°0Clear
65 °Clear

Marcus, Tuesday, 20 October

Clear. High 65°, low 47°.

Pressure30.06 inHg
Wind10.7 mph NW
Humidity54%
Visibility—
Dew point42°
Wed, 2162° / 47°0Overcast
62 °Overcast

Marcus, Wednesday, 21 October

Overcast. High 62°, low 47°.

Pressure30.18 inHg
Wind6.9 mph NW
Humidity44%
Visibility—
Dew point35°
Thu, 2264° / 48°0Overcast
64 °Overcast

Marcus, Thursday, 22 October

Overcast. High 64°, low 48°.

Pressure30.12 inHg
Wind8.7 mph SE
Humidity50%
Visibility—
Dew point40°

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 Marcus, 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 Marcus, 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.