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As of 16:39 CDT

Weather in Sioux Falls, SD

83°Current weather

Sioux Falls, Saturday, 8 August, 16:39

Mostly clear. Feels like 83°. High 83°, low 55°.

Pressure29.85 inHg
Wind12.7 mph S
Humidity45%
Visibility6.2 mi
Dew point59°
Sun, 0984° / 70°0.3Heavy rain
84 °Heavy rain

Sioux Falls, Sunday, 9 August

Heavy rain. High 84°, low 70°.

Pressure29.74 inHg
Wind10.5 mph N
Humidity49%
Visibility6.2 mi
Dew point66°
Mon, 1094° / 64°0.45Heavy rain
94 °Heavy rain

Sioux Falls, Monday, 10 August

Heavy rain. High 94°, low 64°.

Pressure29.80 inHg
Wind7.4 mph SE
Humidity41%
Visibility6.2 mi
Dew point60°
Tue, 1195° / 65°0Clear
95 °Clear

Sioux Falls, Tuesday, 11 August

Clear. High 95°, low 65°.

Pressure29.80 inHg
Wind10.9 mph NE
Humidity48%
Visibility6.2 mi
Dew point66°
Wed, 1296° / 70°0Partly cloudy
96 °Partly cloudy

Sioux Falls, Wednesday, 12 August

Partly cloudy. High 96°, low 70°.

Pressure29.83 inHg
Wind7.1 mph SE
Humidity42%
Visibility6.2 mi
Dew point62°
Thu, 1384° / 59°0.25Rain
84 °Rain

Sioux Falls, Thursday, 13 August

Rain. High 84°, low 59°.

Pressure30.00 inHg
Wind13.5 mph NE
Humidity31%
Visibility—
Dew point44°
Fri, 1486° / 57°0Clear
86 °Clear

Sioux Falls, Friday, 14 August

Clear. High 86°, low 57°.

Pressure30.15 inHg
Wind9.4 mph SE
Humidity30%
Visibility—
Dew point44°
Sat, 1584° / 61°0Overcast
84 °Overcast

Sioux Falls, Saturday, 15 August

Overcast. High 84°, low 61°.

Pressure30.09 inHg
Wind15.6 mph S
Humidity36%
Visibility—
Dew point49°
Sun, 1697° / 68°0.11Light rain
97 °Light rain

Sioux Falls, Sunday, 16 August

Light rain. High 97°, low 68°.

Pressure29.94 inHg
Wind24.1 mph N
Humidity45%
Visibility—
Dew point64°
Mon, 1790° / 67°0.69Heavy rain
90 °Heavy rain

Sioux Falls, Monday, 17 August

Heavy rain. High 90°, low 67°.

Pressure30.03 inHg
Wind10.4 mph NE
Humidity47%
Visibility—
Dew point62°
Tue, 1894° / 68°0Partly cloudy
94 °Partly cloudy

Sioux Falls, Tuesday, 18 August

Partly cloudy. High 94°, low 68°.

Pressure29.94 inHg
Wind7.5 mph SW
Humidity39%
Visibility—
Dew point59°
Wed, 1988° / 64°0.02Light rain
88 °Light rain

Sioux Falls, Wednesday, 19 August

Light rain. High 88°, low 64°.

Pressure29.91 inHg
Wind20.7 mph NE
Humidity37%
Visibility—
Dew point55°
Thu, 2087° / 61°0Mostly clear
87 °Mostly clear

Sioux Falls, Thursday, 20 August

Mostly clear. High 87°, low 61°.

Pressure29.97 inHg
Wind7.3 mph NE
Humidity36%
Visibility—
Dew point51°
Fri, 2195° / 62°0Clear
95 °Clear

Sioux Falls, Friday, 21 August

Clear. High 95°, low 62°.

Pressure29.91 inHg
Wind12.4 mph SW
Humidity31%
Visibility—
Dew point51°
Sat, 2280° / 58°0Overcast
80 °Overcast

Sioux Falls, Saturday, 22 August

Overcast. High 80°, low 58°.

Pressure30.09 inHg
Wind18 mph NE
Humidity56%
Visibility—
Dew point52°
Sun, 2382° / 48°0Mostly clear
82 °Mostly clear

Sioux Falls, Sunday, 23 August

Mostly clear. High 82°, low 48°.

Pressure30.18 inHg
Wind8.7 mph SE
Humidity28%
Visibility—
Dew point37°

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 Sioux Falls, 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 Sioux Falls, 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.