As of 00:18 CDT

Weather in St. Charles, SD

56°

St. Charles, Wednesday, 21 October, 00:18

Clear. Feels like 55°. High 71°, low 48°.

Pressure30.03 inHg

Wind12 mph SW

Humidity79%

Visibility6.2 mi

Dew point49°

See detailed hourly forecast

Thu, 2276° / 48°

76 °

St. Charles, Thursday, 22 October

Clear. High 76°, low 48°.

Pressure30.12 inHg

Wind10 mph S

Humidity64%

Visibility6.2 mi

Dew point56°

Fri, 2377° / 60°

77 °

St. Charles, Friday, 23 October

Overcast. High 77°, low 60°.

Pressure29.88 inHg

Wind19.3 mph S

Humidity56%

Visibility6.2 mi

Dew point53°

Sat, 2467° / 49°

0.25

67 °

St. Charles, Saturday, 24 October

Rain. High 67°, low 49°.

Pressure30.15 inHg

Wind16.4 mph NW

Humidity69%

Visibility6.2 mi

Dew point48°

Sun, 2549° / 43°

0.63

49 °

St. Charles, Sunday, 25 October

Rain. High 49°, low 43°.

Pressure30.45 inHg

Wind8.7 mph N

Humidity92%

Visibility—

Dew point43°

Mon, 2644° / 32°

0.3

44 °

St. Charles, Monday, 26 October

Rain. High 44°, low 32°.

Pressure30.50 inHg

Wind14.9 mph N

Humidity87%

Visibility—

Dew point38°

Tue, 2745° / 29°

45 °

St. Charles, Tuesday, 27 October

Clear. High 45°, low 29°.

Pressure30.50 inHg

Wind8.6 mph S

Humidity44%

Visibility—

Dew point20°

Wed, 2850° / 34°

50 °

St. Charles, Wednesday, 28 October

Partly cloudy. High 50°, low 34°.

Pressure30.27 inHg

Wind17.3 mph NW

Humidity49%

Visibility—

Dew point29°

Thu, 2955° / 35°

55 °

St. Charles, Thursday, 29 October

Overcast. High 55°, low 35°.

Pressure30.24 inHg

Wind7.2 mph SE

Humidity27%

Visibility—

Dew point16°

Fri, 3062° / 38°

62 °

St. Charles, Friday, 30 October

Clear. High 62°, low 38°.

Pressure29.83 inHg

Wind21.6 mph S

Humidity56%

Visibility—

Dew point38°

Sat, 3158° / 46°

58 °

St. Charles, Saturday, 31 October

Overcast. High 58°, low 46°.

Pressure29.68 inHg

Wind18.1 mph S

Humidity33%

Visibility—

Dew point26°

Sun, 0162° / 41°

62 °

St. Charles, Sunday, 1 November

Clear. High 62°, low 41°.

Pressure29.83 inHg

Wind11.2 mph NW

Humidity30%

Visibility—

Dew point26°

Mon, 0257° / 43°

57 °

St. Charles, Monday, 2 November

Overcast. High 57°, low 43°.

Pressure30.27 inHg

Wind8.5 mph E

Humidity32%

Visibility—

Dew point24°

Tue, 0373° / 41°

73 °

St. Charles, Tuesday, 3 November

Overcast. High 73°, low 41°.

Pressure30.00 inHg

Wind12.1 mph S

Humidity40%

Visibility—

Dew point35°

Wed, 0471° / 52°

71 °

St. Charles, Wednesday, 4 November

Mostly clear. High 71°, low 52°.

Pressure30.06 inHg

Wind10.2 mph W

Humidity41%

Visibility—

Dew point42°

Thu, 0562° / 49°

62 °

St. Charles, Thursday, 5 November

Overcast. High 62°, low 49°.

Pressure30.18 inHg

Wind6.4 mph SE

Humidity55%

Visibility—

Dew point44°

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.