Monthly outlook for St. Ignatius, MT: average high 49.3°, average low 35.9°. That is 2.4° above the climate normal for October. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 7 days and 1.6 inches. The warmest day looks like 10 November (55.9°), the coolest 8 November (32.1°).
49.3°/35.9°
Average high / low
+2.4°
Above normal
2 / 7
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
30 October – 8 November
48.9°
46.3°
+1.5°
9 November – 18 November
49.9°
42.2°
+4.3°
19 November – 28 November
at normal
37°
—
October records over 66 years
85.6°1 October 1992All-time high
-2.2°25 October 2020All-time low
Sat, 3153° / 39°0
53 °
St. Ignatius, Saturday, 31 October
Overcast. High 53°, low 39°.
Pressure30.09 inHg
Wind1.7 mph NW
Humidity83%
Visibility1.8 mi
Dew point39°
Sun, 0147° / 36°0
47 °
St. Ignatius, Sunday, 1 November
Overcast. High 47°, low 36°.
Pressure29.97 inHg
Wind1.8 mph NW
Humidity83%
Visibility6.2 mi
Dew point39°
Mon, 0246° / 34°0
46 °
St. Ignatius, Monday, 2 November
Partly cloudy. High 46°, low 34°.
Pressure30.45 inHg
Wind2.3 mph NW
Humidity79%
Visibility2.8 mi
Dew point36°
Tue, 0349° / 35°0
49 °
St. Ignatius, Tuesday, 3 November
Partly cloudy. High 49°, low 35°.
Pressure30.33 inHg
Wind1.9 mph NW
Humidity61%
Visibility—
Dew point30°
Wed, 0449° / 37°0
49 °
St. Ignatius, Wednesday, 4 November
Overcast. High 49°, low 37°.
Pressure30.18 inHg
Wind3 mph W
Humidity63%
Visibility—
Dew point32°
Thu, 0551° / 35°0
51 °
St. Ignatius, Thursday, 5 November
Partly cloudy. High 51°, low 35°.
Pressure29.94 inHg
Wind4.8 mph SE
Humidity57%
Visibility—
Dew point31°
Fri, 0652° / 37°0.13
52 °
St. Ignatius, Friday, 6 November
Snow. High 52°, low 37°.
Pressure29.83 inHg
Wind3.9 mph S
Humidity51%
Visibility—
Dew point29°
Sat, 0744° / 34°0.02
44 °
St. Ignatius, Saturday, 7 November
Snow. High 44°, low 34°.
Pressure30.30 inHg
Wind5 mph SE
Humidity78%
Visibility—
Dew point34°
Sun, 0850° / 32°0
50 °
St. Ignatius, Sunday, 8 November
Clear. High 50°, low 32°.
Pressure30.27 inHg
Wind4.9 mph SE
Humidity57%
Visibility—
Dew point29°
Mon, 0952° / 35°0
52 °
St. Ignatius, Monday, 9 November
Overcast. High 52°, low 35°.
Pressure29.91 inHg
Wind5.5 mph SE
Humidity55%
Visibility—
Dew point31°
Tue, 1056° / 40°0
56 °
St. Ignatius, Tuesday, 10 November
Overcast. High 56°, low 40°.
Pressure29.77 inHg
Wind5.4 mph SE
Humidity48%
Visibility—
Dew point31°
Wed, 1152° / 40°0.03
52 °
St. Ignatius, Wednesday, 11 November
Light rain. High 52°, low 40°.
Pressure29.38 inHg
Wind5.4 mph SE
Humidity54%
Visibility—
Dew point33°
Thu, 1244° / 39°0.11
44 °
St. Ignatius, Thursday, 12 November
Snow. High 44°, low 39°.
Pressure29.77 inHg
Wind6.3 mph W
Humidity82%
Visibility—
Dew point38°
Fri, 1346° / 34°0.03
46 °
St. Ignatius, Friday, 13 November
Light snow. High 46°, low 34°.
Pressure30.21 inHg
Wind4.7 mph SE
Humidity66%
Visibility—
Dew point32°
Sat, 1450° / 33°0.02
50 °
St. Ignatius, Saturday, 14 November
Light rain. High 50°, low 33°.
Pressure30.03 inHg
Wind4.7 mph S
Humidity55%
Visibility—
Dew point29°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 1543° / 27°0.04
43 °
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°0.1
42 °
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°0.09
41 °
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°0.11
40 °
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°0.09
39 °
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°0.09
39 °
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°0.09
38 °
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°0.09
37 °
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°0.09
37 °
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°0.14
37 °
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)
Wed, 2536° / 24°0.16
36 °
St. Ignatius, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high36°
Average low24°
Average precipitation0.16 in
Chance of precipitation60%
Record high49° (2009)
Record low-12° (2010)
Thu, 2635° / 24°0.09
35 °
St. Ignatius, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high35°
Average low24°
Average precipitation0.09 in
Chance of precipitation48%
Record high58° (2017)
Record low-9° (1993)
Fri, 2735° / 23°0.09
35 °
St. Ignatius, Friday, 27 November
Climate normal for this date — 60-year average.
Average high35°
Average low23°
Average precipitation0.09 in
Chance of precipitation53%
Record high52° (2021)
Record low0° (1967)
Sat, 2836° / 24°0.09
36 °
St. Ignatius, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high36°
Average low24°
Average precipitation0.09 in
Chance of precipitation40%
Record high59° (2021)
Record low-2° (1975)
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.