As of 22:07 CDT

Weather in St. Charles, SD

54°

St. Charles, Sunday, 18 October, 22:07

Partly cloudy. Feels like 52°. High 68°, low 43°.

Pressure30.09 inHg

Wind7.8 mph NE

Humidity61%

Visibility6.2 mi

Dew point40°

See detailed hourly forecast

Mon, 1963° / 41°

63 °

St. Charles, Monday, 19 October

Clear. High 63°, low 41°.

Pressure30.24 inHg

Wind6.3 mph E

Humidity63%

Visibility6.2 mi

Dew point44°

Tue, 2068° / 46°

68 °

St. Charles, Tuesday, 20 October

Clear. High 68°, low 46°.

Pressure30.15 inHg

Wind11.3 mph S

Humidity63%

Visibility6.2 mi

Dew point49°

Wed, 2169° / 49°

69 °

St. Charles, Wednesday, 21 October

Clear. High 69°, low 49°.

Pressure30.18 inHg

Wind4.4 mph E

Humidity70%

Visibility6.2 mi

Dew point54°

Thu, 2274° / 54°

74 °

St. Charles, Thursday, 22 October

Clear. High 74°, low 54°.

Pressure30.12 inHg

Wind11.4 mph S

Humidity69%

Visibility6.2 mi

Dew point56°

Fri, 2373° / 59°

73 °

St. Charles, Friday, 23 October

Overcast. High 73°, low 59°.

Pressure29.85 inHg

Wind23.1 mph S

Humidity51%

Visibility—

Dew point50°

Sat, 2466° / 46°

0.04

66 °

St. Charles, Saturday, 24 October

Light rain. High 66°, low 46°.

Pressure30.00 inHg

Wind19.5 mph SW

Humidity45%

Visibility—

Dew point43°

Sun, 2562° / 40°

62 °

St. Charles, Sunday, 25 October

Clear. High 62°, low 40°.

Pressure30.27 inHg

Wind12.3 mph S

Humidity29%

Visibility—

Dew point21°

Mon, 2655° / 40°

55 °

St. Charles, Monday, 26 October

Mostly clear. High 55°, low 40°.

Pressure30.09 inHg

Wind17.6 mph N

Humidity38%

Visibility—

Dew point25°

Tue, 2752° / 33°

52 °

St. Charles, Tuesday, 27 October

Clear. High 52°, low 33°.

Pressure30.21 inHg

Wind10.3 mph SE

Humidity46%

Visibility—

Dew point26°

Wed, 2866° / 38°

66 °

St. Charles, Wednesday, 28 October

Partly cloudy. High 66°, low 38°.

Pressure29.88 inHg

Wind20.1 mph S

Humidity55%

Visibility—

Dew point42°

Thu, 2969° / 51°

0.25

69 °

St. Charles, Thursday, 29 October

Rain. High 69°, low 51°.

Pressure29.44 inHg

Wind27.1 mph S

Humidity73%

Visibility—

Dew point51°

Fri, 3055° / 42°

0.01

55 °

St. Charles, Friday, 30 October

Light rain. High 55°, low 42°.

Pressure29.65 inHg

Wind26.9 mph W

Humidity26%

Visibility—

Dew point19°

Sat, 3153° / 36°

53 °

St. Charles, Saturday, 31 October

Overcast. High 53°, low 36°.

Pressure30.03 inHg

Wind14 mph NW

Humidity26%

Visibility—

Dew point14°

Sun, 0154° / 37°

54 °

St. Charles, Sunday, 1 November

Overcast. High 54°, low 37°.

Pressure29.85 inHg

Wind21 mph NW

Humidity34%

Visibility—

Dew point24°

Mon, 0268° / 40°

68 °

St. Charles, Monday, 2 November

Partly cloudy. High 68°, low 40°.

Pressure29.71 inHg

Wind17.8 mph S

Humidity26%

Visibility—

Dew point25°

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.