As of 22:17 MDT

Weather in St. Charles, ID

74°Current weather

St. Charles, Saturday, 8 August, 22:17

Overcast. Feels like 72°. High 92°, low 61°.

Pressure29.97 inHg
Wind7.1 mph SW
Humidity25%
Visibility6.2 mi
Dew point36°
Sun, 0991° / 59°0.01Light rain
91 °Light rain

St. Charles, Sunday, 9 August

Light rain. High 91°, low 59°.

Pressure29.88 inHg
Wind11.2 mph W
Humidity22%
Visibility6.2 mi
Dew point41°
Mon, 1091° / 58°0Overcast
91 °Overcast

St. Charles, Monday, 10 August

Overcast. High 91°, low 58°.

Pressure29.88 inHg
Wind11.6 mph W
Humidity20%
Visibility6.2 mi
Dew point38°
Tue, 1191° / 65°0Clear
91 °Clear

St. Charles, Tuesday, 11 August

Clear. High 91°, low 65°.

Pressure29.91 inHg
Wind6.2 mph W
Humidity14%
Visibility6.2 mi
Dew point29°
Wed, 1287° / 66°0Overcast
87 °Overcast

St. Charles, Wednesday, 12 August

Overcast. High 87°, low 66°.

Pressure29.83 inHg
Wind8.6 mph NW
Humidity19%
Visibility6.2 mi
Dew point34°
Thu, 1382° / 61°0Mostly clear
82 °Mostly clear

St. Charles, Thursday, 13 August

Mostly clear. High 82°, low 61°.

Pressure29.80 inHg
Wind9.9 mph SW
Humidity24%
Visibility
Dew point38°
Fri, 1478° / 60°0.13Light rain
78 °Light rain

St. Charles, Friday, 14 August

Light rain. High 78°, low 60°.

Pressure30.03 inHg
Wind12.2 mph W
Humidity48%
Visibility
Dew point49°
Sat, 1578° / 61°0.02Light rain
78 °Light rain

St. Charles, Saturday, 15 August

Light rain. High 78°, low 61°.

Pressure30.06 inHg
Wind12.6 mph S
Humidity32%
Visibility
Dew point43°
Sun, 1685° / 58°0.01Light rain
85 °Light rain

St. Charles, Sunday, 16 August

Light rain. High 85°, low 58°.

Pressure30.06 inHg
Wind14.4 mph W
Humidity29%
Visibility
Dew point43°
Mon, 1787° / 61°0Partly cloudy
87 °Partly cloudy

St. Charles, Monday, 17 August

Partly cloudy. High 87°, low 61°.

Pressure30.06 inHg
Wind14.7 mph W
Humidity27%
Visibility
Dew point41°
Tue, 1888° / 63°0Partly cloudy
88 °Partly cloudy

St. Charles, Tuesday, 18 August

Partly cloudy. High 88°, low 63°.

Pressure30.00 inHg
Wind14.4 mph W
Humidity26%
Visibility
Dew point43°
Wed, 1984° / 60°0.01Light rain
84 °Light rain

St. Charles, Wednesday, 19 August

Light rain. High 84°, low 60°.

Pressure29.97 inHg
Wind14 mph W
Humidity30%
Visibility
Dew point44°
Thu, 2085° / 62°0.02Light rain
85 °Light rain

St. Charles, Thursday, 20 August

Light rain. High 85°, low 62°.

Pressure29.91 inHg
Wind17.7 mph SW
Humidity31%
Visibility
Dew point44°
Fri, 2183° / 58°0Mostly clear
83 °Mostly clear

St. Charles, Friday, 21 August

Mostly clear. High 83°, low 58°.

Pressure29.91 inHg
Wind17.2 mph W
Humidity35%
Visibility
Dew point44°
Sat, 2286° / 58°0Clear
86 °Clear

St. Charles, Saturday, 22 August

Clear. High 86°, low 58°.

Pressure29.91 inHg
Wind14.7 mph W
Humidity20%
Visibility
Dew point35°
Sun, 2390° / 62°0Clear
90 °Clear

St. Charles, Sunday, 23 August

Clear. High 90°, low 62°.

Pressure29.88 inHg
Wind16.7 mph NW
Humidity17%
Visibility
Dew point33°

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, ID 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, ID 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.