As of 11:49 CDT

Weather in Brant Lake South, SD

78°

Brant Lake South, Sunday, 9 August, 11:49

Partly cloudy. Feels like 79°. High 81°, low 65°.

Pressure29.83 inHg

Wind8.5 mph NE

Humidity72%

Visibility6.2 mi

Dew point68°

See detailed hourly forecast

Mon, 1082° / 59°

0.94

82 °

Brant Lake South, Monday, 10 August

Heavy rain. High 82°, low 59°.

Pressure29.88 inHg

Wind7.2 mph SE

Humidity60%

Visibility6.2 mi

Dew point63°

Tue, 1189° / 66°

89 °

Brant Lake South, Tuesday, 11 August

Clear. High 89°, low 66°.

Pressure29.80 inHg

Wind11.6 mph NE

Humidity48%

Visibility6.2 mi

Dew point62°

Wed, 1292° / 62°

0.06

92 °

Brant Lake South, Wednesday, 12 August

Light rain. High 92°, low 62°.

Pressure29.85 inHg

Wind12.5 mph E

Humidity44%

Visibility6.2 mi

Dew point61°

Thu, 1377° / 64°

0.39

77 °

Brant Lake South, Thursday, 13 August

Rain. High 77°, low 64°.

Pressure29.94 inHg

Wind10.2 mph E

Humidity68%

Visibility—

Dew point63°

Fri, 1476° / 60°

0.04

76 °

Brant Lake South, Friday, 14 August

Light rain. High 76°, low 60°.

Pressure30.06 inHg

Wind15.7 mph SE

Humidity55%

Visibility—

Dew point57°

Sat, 1574° / 63°

0.37

74 °

Brant Lake South, Saturday, 15 August

Rain. High 74°, low 63°.

Pressure30.06 inHg

Wind11.5 mph E

Humidity99%

Visibility—

Dew point65°

Sun, 1683° / 60°

83 °

Brant Lake South, Sunday, 16 August

Overcast. High 83°, low 60°.

Pressure30.15 inHg

Wind7.7 mph N

Humidity50%

Visibility—

Dew point56°

Mon, 1781° / 62°

81 °

Brant Lake South, Monday, 17 August

Partly cloudy. High 81°, low 62°.

Pressure30.03 inHg

Wind20.6 mph S

Humidity61%

Visibility—

Dew point58°

Tue, 1895° / 60°

0.07

95 °

Brant Lake South, Tuesday, 18 August

Light rain. High 95°, low 60°.

Pressure29.74 inHg

Wind17.8 mph W

Humidity45%

Visibility—

Dew point61°

Wed, 1982° / 59°

82 °

Brant Lake South, Wednesday, 19 August

Mostly clear. High 82°, low 59°.

Pressure30.00 inHg

Wind11.4 mph N

Humidity43%

Visibility—

Dew point51°

Thu, 2088° / 60°

88 °

Brant Lake South, Thursday, 20 August

Overcast. High 88°, low 60°.

Pressure29.88 inHg

Wind12.8 mph SW

Humidity37%

Visibility—

Dew point52°

Fri, 2197° / 65°

97 °

Brant Lake South, Friday, 21 August

Partly cloudy. High 97°, low 65°.

Pressure29.68 inHg

Wind12.2 mph S

Humidity23%

Visibility—

Dew point47°

Sat, 2286° / 62°

86 °

Brant Lake South, Saturday, 22 August

Partly cloudy. High 86°, low 62°.

Pressure30.00 inHg

Wind15.4 mph NW

Humidity26%

Visibility—

Dew point42°

Sun, 2390° / 60°

90 °

Brant Lake South, Sunday, 23 August

Clear. High 90°, low 60°.

Pressure30.09 inHg

Wind8.4 mph S

Humidity28%

Visibility—

Dew point46°

Mon, 2497° / 64°

97 °

Brant Lake South, Monday, 24 August

Clear. High 97°, low 64°.

Pressure29.97 inHg

Wind15.8 mph S

Humidity31%

Visibility—

Dew point53°

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 Brant Lake South, 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 Brant Lake South, 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.