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As of 19:29 CDT

Weather in St. Charles, SD

85°Current weather

St. Charles, Saturday, 8 August, 19:29

Clear. Feels like 85°. High 86°, low 55°.

Pressure29.74 inHg
Wind10.6 mph S
Humidity45%
Visibility6.2 mi
Dew point61°
Sun, 0995° / 63°0Partly cloudy
95 °Partly cloudy

St. Charles, Sunday, 9 August

Partly cloudy. High 95°, low 63°.

Pressure29.74 inHg
Wind14.7 mph NE
Humidity31%
Visibility6.2 mi
Dew point56°
Mon, 10103° / 66°0Partly cloudy
103 °Partly cloudy

St. Charles, Monday, 10 August

Partly cloudy. High 103°, low 66°.

Pressure29.77 inHg
Wind15.6 mph SE
Humidity30%
Visibility6.2 mi
Dew point59°
Tue, 1198° / 64°0Mostly clear
98 °Mostly clear

St. Charles, Tuesday, 11 August

Mostly clear. High 98°, low 64°.

Pressure29.80 inHg
Wind13.9 mph NE
Humidity39%
Visibility6.2 mi
Dew point60°
Wed, 12101° / 64°1.28Heavy rain
101 °Heavy rain

St. Charles, Wednesday, 12 August

Heavy rain. High 101°, low 64°.

Pressure29.80 inHg
Wind10.7 mph SE
Humidity38%
Visibility6.2 mi
Dew point63°
Thu, 1383° / 65°0.15Rain
83 °Rain

St. Charles, Thursday, 13 August

Rain. High 83°, low 65°.

Pressure30.00 inHg
Wind12.4 mph E
Humidity45%
Visibility—
Dew point53°
Fri, 1487° / 61°0Overcast
87 °Overcast

St. Charles, Friday, 14 August

Overcast. High 87°, low 61°.

Pressure30.09 inHg
Wind16.2 mph S
Humidity41%
Visibility—
Dew point53°
Sat, 1587° / 67°0.01Light rain
87 °Light rain

St. Charles, Saturday, 15 August

Light rain. High 87°, low 67°.

Pressure30.00 inHg
Wind15 mph S
Humidity49%
Visibility—
Dew point60°
Sun, 1695° / 69°0.19Rain
95 °Rain

St. Charles, Sunday, 16 August

Rain. High 95°, low 69°.

Pressure29.91 inHg
Wind12.7 mph S
Humidity46%
Visibility—
Dew point64°
Mon, 1788° / 67°0Overcast
88 °Overcast

St. Charles, Monday, 17 August

Overcast. High 88°, low 67°.

Pressure30.00 inHg
Wind9.1 mph SE
Humidity48%
Visibility—
Dew point62°
Tue, 1899° / 68°0Light rain
99 °Light rain

St. Charles, Tuesday, 18 August

Light rain. High 99°, low 68°.

Pressure29.91 inHg
Wind11.9 mph SW
Humidity33%
Visibility—
Dew point57°
Wed, 1990° / 64°0.35Rain
90 °Rain

St. Charles, Wednesday, 19 August

Rain. High 90°, low 64°.

Pressure29.83 inHg
Wind19 mph NE
Humidity35%
Visibility—
Dew point56°
Thu, 2084° / 60°0Partly cloudy
84 °Partly cloudy

St. Charles, Thursday, 20 August

Partly cloudy. High 84°, low 60°.

Pressure30.00 inHg
Wind7.1 mph NE
Humidity44%
Visibility—
Dew point53°
Fri, 2196° / 66°0.01Light rain
96 °Light rain

St. Charles, Friday, 21 August

Light rain. High 96°, low 66°.

Pressure29.85 inHg
Wind10.4 mph SW
Humidity37%
Visibility—
Dew point57°
Sat, 2277° / 59°0Overcast
77 °Overcast

St. Charles, Saturday, 22 August

Overcast. High 77°, low 59°.

Pressure30.09 inHg
Wind15.3 mph NE
Humidity70%
Visibility—
Dew point55°
Sun, 2383° / 55°0.01Light rain
83 °Light rain

St. Charles, Sunday, 23 August

Light rain. High 83°, low 55°.

Pressure30.12 inHg
Wind13.4 mph E
Humidity37%
Visibility—
Dew point47°

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 St. Charles, 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 St. Charles, 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.