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As of 16:22 CDT

Weather in Marion, SD

82°Current weather

Marion, Saturday, 8 August, 16:22

Partly cloudy. Feels like 83°. High 83°, low 56°.

Pressure29.91 inHg
Wind13.9 mph S
Humidity51%
Visibility6.2 mi
Dew point61°
Sun, 0985° / 69°0.48Heavy rain
85 °Heavy rain

Marion, Sunday, 9 August

Heavy rain. High 85°, low 69°.

Pressure29.77 inHg
Wind10.4 mph N
Humidity53%
Visibility6.2 mi
Dew point67°
Mon, 1097° / 65°0.17Rain
97 °Rain

Marion, Monday, 10 August

Rain. High 97°, low 65°.

Pressure29.80 inHg
Wind5.9 mph E
Humidity40%
Visibility6.2 mi
Dew point59°
Tue, 1196° / 67°0Light rain
96 °Light rain

Marion, Tuesday, 11 August

Light rain. High 96°, low 67°.

Pressure29.80 inHg
Wind12.4 mph NE
Humidity48%
Visibility6.2 mi
Dew point66°
Wed, 1295° / 70°0.01Light rain
95 °Light rain

Marion, Wednesday, 12 August

Light rain. High 95°, low 70°.

Pressure29.83 inHg
Wind7.1 mph E
Humidity42%
Visibility6.2 mi
Dew point62°
Thu, 1384° / 61°0.46Rain
84 °Rain

Marion, Thursday, 13 August

Rain. High 84°, low 61°.

Pressure30.00 inHg
Wind14.6 mph E
Humidity36%
Visibility—
Dew point49°
Fri, 1488° / 59°0Mostly clear
88 °Mostly clear

Marion, Friday, 14 August

Mostly clear. High 88°, low 59°.

Pressure30.12 inHg
Wind10.8 mph S
Humidity33%
Visibility—
Dew point48°
Sat, 1587° / 62°0Overcast
87 °Overcast

Marion, Saturday, 15 August

Overcast. High 87°, low 62°.

Pressure30.09 inHg
Wind15.6 mph S
Humidity47%
Visibility—
Dew point53°
Sun, 1698° / 69°0.32Rain
98 °Rain

Marion, Sunday, 16 August

Rain. High 98°, low 69°.

Pressure29.94 inHg
Wind24.7 mph NE
Humidity44%
Visibility—
Dew point64°
Mon, 1786° / 67°0.13Light rain
86 °Light rain

Marion, Monday, 17 August

Light rain. High 86°, low 67°.

Pressure30.03 inHg
Wind7.6 mph E
Humidity53%
Visibility—
Dew point64°
Tue, 1898° / 68°0Partly cloudy
98 °Partly cloudy

Marion, Tuesday, 18 August

Partly cloudy. High 98°, low 68°.

Pressure29.94 inHg
Wind9.8 mph S
Humidity39%
Visibility—
Dew point60°
Wed, 1990° / 64°0.03Light rain
90 °Light rain

Marion, Wednesday, 19 August

Light rain. High 90°, low 64°.

Pressure29.88 inHg
Wind21.8 mph NE
Humidity33%
Visibility—
Dew point53°
Thu, 2088° / 63°0Mostly clear
88 °Mostly clear

Marion, Thursday, 20 August

Mostly clear. High 88°, low 63°.

Pressure30.00 inHg
Wind6.7 mph E
Humidity38%
Visibility—
Dew point53°
Fri, 2192° / 63°0.03Light rain
92 °Light rain

Marion, Friday, 21 August

Light rain. High 92°, low 63°.

Pressure29.88 inHg
Wind13.4 mph SW
Humidity28%
Visibility—
Dew point51°
Sat, 2280° / 60°0Overcast
80 °Overcast

Marion, Saturday, 22 August

Overcast. High 80°, low 60°.

Pressure30.09 inHg
Wind18.7 mph NE
Humidity58%
Visibility—
Dew point53°
Sun, 2383° / 50°0Mostly clear
83 °Mostly clear

Marion, Sunday, 23 August

Mostly clear. High 83°, low 50°.

Pressure30.15 inHg
Wind9.9 mph SE
Humidity28%
Visibility—
Dew point38°

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 Marion, 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 Marion, 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.