As of 15:09 MDT

Weather in St. Charles, ID

63°Current weather

St. Charles, Sunday, 18 October, 15:09

Clear. Feels like 60°. High 63°, low 34°.

Pressure30.06 inHg
Wind1 mph SE
Humidity27%
Visibility6.2 mi
Dew point31°

Monthly outlook for St. Charles, ID: average high 52.5°, average low 35.4°. That is 1.4° above the climate normal for October. Precipitation is expected on 5 days (about 2.2 inches), against a normal of 5 days and 1.1 inches. The warmest day looks like 19 October (64.9°), the coolest 24 October (25.7°).

52.5°/35.4°
Average high / low
+1.4°
Above normal
5 / 5
Wet days / normal
2.2 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
18 October – 27 October56.3°52.4°+2.2°
28 October – 6 November46.2°45.8°+0.2°
7 November – 16 Novemberat normal41.3°—

October records over 66 years

80.4°1 October 2010All-time high
0.9°28 October 2019All-time low

Climate normals and records are computed from the nearest reference point — Garden City (12 mi).

Mon, 1965° / 34°0Clear
65 °Clear

St. Charles, Monday, 19 October

Clear. High 65°, low 34°.

Pressure30.09 inHg
Wind2.7 mph E
Humidity58%
Visibility6.2 mi
Dew point38°
Tue, 2057° / 38°0.33Rain
57 °Rain

St. Charles, Tuesday, 20 October

Rain. High 57°, low 38°.

Pressure30.09 inHg
Wind1.6 mph NE
Humidity75%
Visibility6.0 mi
Dew point44°
Wed, 2157° / 39°0Partly cloudy
57 °Partly cloudy

St. Charles, Wednesday, 21 October

Partly cloudy. High 57°, low 39°.

Pressure30.15 inHg
Wind1.9 mph SE
Humidity79%
Visibility1.4 mi
Dew point44°
Thu, 2256° / 45°0.19Rain
56 °Rain

St. Charles, Thursday, 22 October

Rain. High 56°, low 45°.

Pressure29.88 inHg
Wind3.1 mph SE
Humidity68%
Visibility6.2 mi
Dew point46°
Fri, 2343° / 30°0.81Snow
43 °Snow

St. Charles, Friday, 23 October

Snow. High 43°, low 30°.

Pressure29.91 inHg
Wind10.4 mph W
Humidity88%
Visibility—
Dew point34°
Sat, 2448° / 26°0Clear
48 °Clear

St. Charles, Saturday, 24 October

Clear. High 48°, low 26°.

Pressure30.27 inHg
Wind3.3 mph NW
Humidity53%
Visibility—
Dew point24°
Sun, 2555° / 39°0Clear
55 °Clear

St. Charles, Sunday, 25 October

Clear. High 55°, low 39°.

Pressure30.12 inHg
Wind4 mph W
Humidity35%
Visibility—
Dew point23°
Mon, 2658° / 40°0Clear
58 °Clear

St. Charles, Monday, 26 October

Clear. High 58°, low 40°.

Pressure30.00 inHg
Wind5 mph SE
Humidity38%
Visibility—
Dew point26°
Tue, 2762° / 44°0Overcast
62 °Overcast

St. Charles, Tuesday, 27 October

Overcast. High 62°, low 44°.

Pressure29.88 inHg
Wind13.2 mph SW
Humidity38%
Visibility—
Dew point30°
Wed, 2849° / 35°0.01Light rain
49 °Light rain

St. Charles, Wednesday, 28 October

Light rain. High 49°, low 35°.

Pressure30.03 inHg
Wind11.6 mph W
Humidity42%
Visibility—
Dew point20°
Thu, 2946° / 31°0Overcast
46 °Overcast

St. Charles, Thursday, 29 October

Overcast. High 46°, low 31°.

Pressure29.94 inHg
Wind3.4 mph E
Humidity37%
Visibility—
Dew point16°
Fri, 3053° / 38°0Partly cloudy
53 °Partly cloudy

St. Charles, Friday, 30 October

Partly cloudy. High 53°, low 38°.

Pressure29.91 inHg
Wind5.1 mph SE
Humidity35%
Visibility—
Dew point20°
Sat, 3145° / 39°0.25Snow
45 °Snow

St. Charles, Saturday, 31 October

Snow. High 45°, low 39°.

Pressure29.88 inHg
Wind3.8 mph N
Humidity93%
Visibility—
Dew point40°
Sun, 0141° / 29°0.64Snow
41 °Snow

St. Charles, Sunday, 1 November

Snow. High 41°, low 29°.

Pressure30.27 inHg
Wind12 mph SE
Humidity93%
Visibility—
Dew point34°
Mon, 0244° / 27°0Mostly clear
44 °Mostly clear

St. Charles, Monday, 2 November

Mostly clear. High 44°, low 27°.

Pressure30.33 inHg
Wind4.1 mph W
Humidity72%
Visibility—
Dew point29°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0346° / 30°0.05Climate normal
46 °Climate normal

St. Charles, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high46°
Average low30°
Average precipitation0.05 in
Chance of precipitation18%
Record high63° (2020)
Record low5° (1991)
Wed, 0446° / 30°0.06Climate normal
46 °Climate normal

St. Charles, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high46°
Average low30°
Average precipitation0.06 in
Chance of precipitation23%
Record high62° (2020)
Record low11° (1973)
Thu, 0545° / 31°0.08Climate normal
45 °Climate normal

St. Charles, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high45°
Average low31°
Average precipitation0.08 in
Chance of precipitation33%
Record high62° (2020)
Record low12° (1961)
Fri, 0645° / 31°0.05Climate normal
45 °Climate normal

St. Charles, Friday, 6 November

Climate normal for this date — 60-year average.

Average high45°
Average low31°
Average precipitation0.05 in
Chance of precipitation28%
Record high64° (2020)
Record low9° (1971)
Sat, 0744° / 30°0.09Climate normal
44 °Climate normal

St. Charles, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high44°
Average low30°
Average precipitation0.09 in
Chance of precipitation32%
Record high62° (1999)
Record low4° (2003)
Sun, 0843° / 29°0.11Climate normal
43 °Climate normal

St. Charles, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high43°
Average low29°
Average precipitation0.11 in
Chance of precipitation40%
Record high58° (2016)
Record low11° (2018)
Mon, 0942° / 28°0.11Climate normal
42 °Climate normal

St. Charles, Monday, 9 November

Climate normal for this date — 60-year average.

Average high42°
Average low28°
Average precipitation0.11 in
Chance of precipitation38%
Record high59° (2016)
Record low11° (1966)
Tue, 1041° / 27°0.07Climate normal
41 °Climate normal

St. Charles, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high41°
Average low27°
Average precipitation0.07 in
Chance of precipitation42%
Record high59° (2016)
Record low6° (1985)
Wed, 1141° / 27°0.07Climate normal
41 °Climate normal

St. Charles, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high41°
Average low27°
Average precipitation0.07 in
Chance of precipitation28%
Record high59° (1999)
Record low1° (2000)
Thu, 1241° / 28°0.09Climate normal
41 °Climate normal

St. Charles, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high41°
Average low28°
Average precipitation0.09 in
Chance of precipitation35%
Record high61° (1999)
Record low2° (2014)
Fri, 1341° / 27°0.07Climate normal
41 °Climate normal

St. Charles, Friday, 13 November

Climate normal for this date — 60-year average.

Average high41°
Average low27°
Average precipitation0.07 in
Chance of precipitation40%
Record high59° (1999)
Record low5° (2014)
Sat, 1440° / 26°0.11Climate normal
40 °Climate normal

St. Charles, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high40°
Average low26°
Average precipitation0.11 in
Chance of precipitation35%
Record high60° (1999)
Record low3° (2000)
Sun, 1540° / 24°0.04Climate normal
40 °Climate normal

St. Charles, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high40°
Average low24°
Average precipitation0.04 in
Chance of precipitation18%
Record high61° (1999)
Record low0° (1997)
Mon, 1639° / 26°0.06Climate normal
39 °Climate normal

St. Charles, Monday, 16 November

Climate normal for this date — 60-year average.

Average high39°
Average low26°
Average precipitation0.06 in
Chance of precipitation33%
Record high60° (1999)
Record low-2° (2014)

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.