As of 23:59 CDT

Weather in St. Charles, IA

57°

St. Charles, Wednesday, 14 October, 23:59

Overcast. Feels like 57°. High 62°, low 53°.

Pressure30.12 inHg

Wind3.4 mph N

Humidity87%

Visibility6.2 mi

Dew point54°

See detailed hourly forecast

Thu, 1559° / 52°

0.33

59 °

St. Charles, Thursday, 15 October

Rain. High 59°, low 52°.

Pressure30.00 inHg

Wind7.1 mph NW

Humidity98%

Visibility2.3 mi

Dew point58°

Fri, 1652° / 41°

52 °

St. Charles, Friday, 16 October

Partly cloudy. High 52°, low 41°.

Pressure30.42 inHg

Wind22.4 mph N

Humidity55%

Visibility6.2 mi

Dew point34°

Sat, 1757° / 34°

57 °

St. Charles, Saturday, 17 October

Clear. High 57°, low 34°.

Pressure30.56 inHg

Wind8.9 mph SW

Humidity44%

Visibility6.2 mi

Dew point32°

Sun, 1862° / 43°

62 °

St. Charles, Sunday, 18 October

Clear. High 62°, low 43°.

Pressure30.36 inHg

Wind12.6 mph S

Humidity55%

Visibility6.2 mi

Dew point41°

Mon, 1962° / 44°

62 °

St. Charles, Monday, 19 October

Overcast. High 62°, low 44°.

Pressure30.30 inHg

Wind9.5 mph S

Humidity56%

Visibility—

Dew point43°

Tue, 2068° / 48°

68 °

St. Charles, Tuesday, 20 October

Clear. High 68°, low 48°.

Pressure30.24 inHg

Wind10.4 mph S

Humidity55%

Visibility—

Dew point47°

Wed, 2165° / 54°

65 °

St. Charles, Wednesday, 21 October

Overcast. High 65°, low 54°.

Pressure30.18 inHg

Wind14.2 mph S

Humidity72%

Visibility—

Dew point54°

Thu, 2274° / 60°

74 °

St. Charles, Thursday, 22 October

Overcast. High 74°, low 60°.

Pressure30.03 inHg

Wind18.5 mph S

Humidity56%

Visibility—

Dew point55°

Fri, 2371° / 58°

0.01

71 °

St. Charles, Friday, 23 October

Light rain. High 71°, low 58°.

Pressure29.83 inHg

Wind23.7 mph S

Humidity52%

Visibility—

Dew point52°

Sat, 2469° / 52°

0.03

69 °

St. Charles, Saturday, 24 October

Light rain. High 69°, low 52°.

Pressure30.18 inHg

Wind18.1 mph N

Humidity56%

Visibility—

Dew point50°

Sun, 2554° / 45°

0.02

54 °

St. Charles, Sunday, 25 October

Light rain. High 54°, low 45°.

Pressure30.33 inHg

Wind12.7 mph N

Humidity41%

Visibility—

Dew point30°

Mon, 2659° / 38°

59 °

St. Charles, Monday, 26 October

Clear. High 59°, low 38°.

Pressure30.09 inHg

Wind11.6 mph NW

Humidity40%

Visibility—

Dew point32°

Tue, 2759° / 43°

59 °

St. Charles, Tuesday, 27 October

Mostly clear. High 59°, low 43°.

Pressure30.15 inHg

Wind7.6 mph W

Humidity47%

Visibility—

Dew point35°

Wed, 2862° / 42°

62 °

St. Charles, Wednesday, 28 October

Clear. High 62°, low 42°.

Pressure29.85 inHg

Wind16.8 mph SW

Humidity46%

Visibility—

Dew point37°

Thu, 2961° / 45°

61 °

St. Charles, Thursday, 29 October

Clear. High 61°, low 45°.

Pressure30.09 inHg

Wind14 mph NW

Humidity42%

Visibility—

Dew point36°

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, IA 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, IA 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.