As of 20:28 MDT

Weather in St. Ignatius, MT

42°Current weather

St. Ignatius, Monday, 26 October, 20:28

Light rain. Feels like 42°. High 48°, low 34°.

Pressure29.94 inHg
Wind1.9 mph SE
Humidity89%
Visibility2.1 mi
Dew point40°

Monthly outlook for St. Ignatius, MT: average high 47°, average low 35.7°. That is 0.1° above the climate normal for October. Precipitation is expected on 8 days (about 1.2 inches), against a normal of 7 days and 1.6 inches. The warmest day looks like 6 November (55°), the coolest 3 November (26.8°).

47°/35.7°
Average high / low
+0.1°
Above normal
8 / 7
Wet days / normal
1.2 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
26 October – 4 November44.9°48.3°-1.9°
5 November – 14 November50.5°43.6°+3.8°
15 November – 24 Novemberat normal39.3°—

October records over 66 years

85.6°1 October 1992All-time high
-2.2°25 October 2020All-time low
Tue, 2745° / 38°0.26Snow
45 °Snow

St. Ignatius, Tuesday, 27 October

Snow. High 45°, low 38°.

Pressure29.94 inHg
Wind5.2 mph SE
Humidity84%
Visibility6.2 mi
Dew point37°
Wed, 2846° / 34°0.15Snow
46 °Snow

St. Ignatius, Wednesday, 28 October

Snow. High 46°, low 34°.

Pressure30.00 inHg
Wind2.5 mph S
Humidity69%
Visibility6.2 mi
Dew point33°
Thu, 2946° / 32°0.03Snow
46 °Snow

St. Ignatius, Thursday, 29 October

Snow. High 46°, low 32°.

Pressure30.12 inHg
Wind1.7 mph NW
Humidity70%
Visibility6.2 mi
Dew point34°
Fri, 3047° / 33°0Partly cloudy
47 °Partly cloudy

St. Ignatius, Friday, 30 October

Partly cloudy. High 47°, low 33°.

Pressure30.00 inHg
Wind2.9 mph NW
Humidity68%
Visibility6.2 mi
Dew point33°
Sat, 3145° / 35°0.01Light rain
45 °Light rain

St. Ignatius, Saturday, 31 October

Light rain. High 45°, low 35°.

Pressure30.00 inHg
Wind2.4 mph NW
Humidity74%
Visibility—
Dew point33°
Sun, 0141° / 34°0.26Snow
41 °Snow

St. Ignatius, Sunday, 1 November

Snow. High 41°, low 34°.

Pressure30.21 inHg
Wind2.8 mph SW
Humidity80%
Visibility—
Dew point33°
Mon, 0239° / 29°0.02Light snow
39 °Light snow

St. Ignatius, Monday, 2 November

Light snow. High 39°, low 29°.

Pressure30.62 inHg
Wind5.8 mph SE
Humidity78%
Visibility—
Dew point29°
Tue, 0343° / 27°0Overcast
43 °Overcast

St. Ignatius, Tuesday, 3 November

Overcast. High 43°, low 27°.

Pressure30.53 inHg
Wind4.9 mph SE
Humidity64%
Visibility—
Dew point25°
Wed, 0449° / 29°0Clear
49 °Clear

St. Ignatius, Wednesday, 4 November

Clear. High 49°, low 29°.

Pressure30.36 inHg
Wind4.7 mph SE
Humidity55%
Visibility—
Dew point26°
Thu, 0549° / 33°0Overcast
49 °Overcast

St. Ignatius, Thursday, 5 November

Overcast. High 49°, low 33°.

Pressure30.06 inHg
Wind4.9 mph SE
Humidity58%
Visibility—
Dew point30°
Fri, 0655° / 40°0Overcast
55 °Overcast

St. Ignatius, Friday, 6 November

Overcast. High 55°, low 40°.

Pressure29.88 inHg
Wind5.8 mph SE
Humidity54%
Visibility—
Dew point34°
Sat, 0752° / 44°0.06Light rain
52 °Light rain

St. Ignatius, Saturday, 7 November

Light rain. High 52°, low 44°.

Pressure29.71 inHg
Wind6.8 mph S
Humidity88%
Visibility—
Dew point44°
Sun, 0847° / 43°0.15Light rain
47 °Light rain

St. Ignatius, Sunday, 8 November

Light rain. High 47°, low 43°.

Pressure29.83 inHg
Wind5.3 mph S
Humidity91%
Visibility—
Dew point44°
Mon, 0947° / 43°0.06Light rain
47 °Light rain

St. Ignatius, Monday, 9 November

Light rain. High 47°, low 43°.

Pressure30.09 inHg
Wind7 mph S
Humidity92%
Visibility—
Dew point42°
Tue, 1052° / 41°0.05Light rain
52 °Light rain

St. Ignatius, Tuesday, 10 November

Light rain. High 52°, low 41°.

Pressure30.24 inHg
Wind5.7 mph S
Humidity82%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 1142° / 27°0.09Climate normal
42 °Climate normal

St. Ignatius, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high42°
Average low27°
Average precipitation0.09 in
Chance of precipitation37%
Record high61° (2016)
Record low-2° (2000)
Thu, 1242° / 28°0.11Climate normal
42 °Climate normal

St. Ignatius, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high42°
Average low28°
Average precipitation0.11 in
Chance of precipitation48%
Record high66° (1999)
Record low0° (1986)
Fri, 1342° / 29°0.1Climate normal
42 °Climate normal

St. Ignatius, Friday, 13 November

Climate normal for this date — 60-year average.

Average high42°
Average low29°
Average precipitation0.1 in
Chance of precipitation52%
Record high65° (2025)
Record low4° (2000)
Sat, 1442° / 28°0.09Climate normal
42 °Climate normal

St. Ignatius, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high42°
Average low28°
Average precipitation0.09 in
Chance of precipitation40%
Record high62° (1999)
Record low2° (2000)
Sun, 1543° / 27°0.04Climate normal
43 °Climate normal

St. Ignatius, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high43°
Average low27°
Average precipitation0.04 in
Chance of precipitation30%
Record high62° (2021)
Record low5° (2014)
Mon, 1642° / 28°0.1Climate normal
42 °Climate normal

St. Ignatius, Monday, 16 November

Climate normal for this date — 60-year average.

Average high42°
Average low28°
Average precipitation0.1 in
Chance of precipitation52%
Record high57° (2001)
Record low6° (1996)
Tue, 1741° / 29°0.09Climate normal
41 °Climate normal

St. Ignatius, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high41°
Average low29°
Average precipitation0.09 in
Chance of precipitation52%
Record high57° (1976)
Record low4° (1961)
Wed, 1840° / 28°0.11Climate normal
40 °Climate normal

St. Ignatius, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high40°
Average low28°
Average precipitation0.11 in
Chance of precipitation52%
Record high60° (2008)
Record low1° (2022)
Thu, 1939° / 27°0.09Climate normal
39 °Climate normal

St. Ignatius, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high39°
Average low27°
Average precipitation0.09 in
Chance of precipitation43%
Record high53° (2008)
Record low0° (2000)
Fri, 2039° / 26°0.09Climate normal
39 °Climate normal

St. Ignatius, Friday, 20 November

Climate normal for this date — 60-year average.

Average high39°
Average low26°
Average precipitation0.09 in
Chance of precipitation48%
Record high51° (2001)
Record low-4° (1977)
Sat, 2138° / 25°0.09Climate normal
38 °Climate normal

St. Ignatius, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high38°
Average low25°
Average precipitation0.09 in
Chance of precipitation47%
Record high50° (1974)
Record low-8° (1977)
Sun, 2237° / 25°0.09Climate normal
37 °Climate normal

St. Ignatius, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high37°
Average low25°
Average precipitation0.09 in
Chance of precipitation50%
Record high55° (2017)
Record low-5° (1970)
Mon, 2337° / 23°0.09Climate normal
37 °Climate normal

St. Ignatius, Monday, 23 November

Climate normal for this date — 60-year average.

Average high37°
Average low23°
Average precipitation0.09 in
Chance of precipitation50%
Record high57° (2017)
Record low-15° (1985)
Tue, 2437° / 26°0.14Climate normal
37 °Climate normal

St. Ignatius, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high37°
Average low26°
Average precipitation0.14 in
Chance of precipitation58%
Record high49° (2017)
Record low-14° (1985)

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. Ignatius, MT 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. Ignatius, MT 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.