Monthly outlook for Saint Johns, MT: average high 49.7°, average low 36.2°. That is 1° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 2 days and 0.4 inches. The warmest day looks like 6 November (62.1°), the coolest 24 October (28.2°).
49.7°/36.2°
Average high / low
+1°
Above normal
1 / 2
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
24 October – 2 November
45.2°
49.4°
-2.3°
3 November – 12 November
57.4°
43.5°
+7.7°
13 November – 22 November
at normal
39.3°
—
October records over 66 years
86.4°7 October 1980All-time high
-16.2°29 October 1991All-time low
Climate normals and records are computed from the nearest reference point — Simpson (13 mi).
Sun, 2545° / 28°0
45 °
Saint Johns, Sunday, 25 October
Clear. High 45°, low 28°.
Pressure30.53 inHg
Wind10.3 mph E
Humidity70%
Visibility6.2 mi
Dew point21°
Mon, 2649° / 32°0
49 °
Saint Johns, Monday, 26 October
Clear. High 49°, low 32°.
Pressure30.21 inHg
Wind15.8 mph SE
Humidity61%
Visibility6.2 mi
Dew point28°
Tue, 2741° / 34°0
41 °
Saint Johns, Tuesday, 27 October
Light rain. High 41°, low 34°.
Pressure29.91 inHg
Wind2.1 mph S
Humidity83%
Visibility6.2 mi
Dew point34°
Wed, 2846° / 36°0.01
46 °
Saint Johns, Wednesday, 28 October
Light rain. High 46°, low 36°.
Pressure30.06 inHg
Wind9 mph NW
Humidity66%
Visibility6.2 mi
Dew point33°
Thu, 2946° / 34°0
46 °
Saint Johns, Thursday, 29 October
Overcast. High 46°, low 34°.
Pressure30.06 inHg
Wind12.6 mph E
Humidity75%
Visibility—
Dew point33°
Fri, 3039° / 32°0.02
39 °
Saint Johns, Friday, 30 October
Light snow. High 39°, low 32°.
Pressure29.97 inHg
Wind6.3 mph E
Humidity71%
Visibility—
Dew point28°
Sat, 3145° / 35°0.04
45 °
Saint Johns, Saturday, 31 October
Light snow. High 45°, low 35°.
Pressure29.83 inHg
Wind21 mph SW
Humidity37%
Visibility—
Dew point17°
Sun, 0147° / 30°0
47 °
Saint Johns, Sunday, 1 November
Partly cloudy. High 47°, low 30°.
Pressure30.09 inHg
Wind9.6 mph W
Humidity41%
Visibility—
Dew point18°
Mon, 0250° / 35°0
50 °
Saint Johns, Monday, 2 November
Overcast. High 50°, low 35°.
Pressure30.06 inHg
Wind9 mph S
Humidity43%
Visibility—
Dew point22°
Tue, 0352° / 36°0
52 °
Saint Johns, Tuesday, 3 November
Clear. High 52°, low 36°.
Pressure29.85 inHg
Wind12.9 mph NW
Humidity53%
Visibility—
Dew point28°
Wed, 0454° / 42°0
54 °
Saint Johns, Wednesday, 4 November
Overcast. High 54°, low 42°.
Pressure29.68 inHg
Wind23.8 mph W
Humidity44%
Visibility—
Dew point30°
Thu, 0555° / 43°0
55 °
Saint Johns, Thursday, 5 November
Overcast. High 55°, low 43°.
Pressure29.80 inHg
Wind17 mph SW
Humidity45%
Visibility—
Dew point30°
Fri, 0662° / 45°0
62 °
Saint Johns, Friday, 6 November
Overcast. High 62°, low 45°.
Pressure30.03 inHg
Wind14.7 mph SW
Humidity57%
Visibility—
Dew point39°
Sat, 0760° / 46°0
60 °
Saint Johns, Saturday, 7 November
Partly cloudy. High 60°, low 46°.
Pressure29.91 inHg
Wind14.3 mph SW
Humidity51%
Visibility—
Dew point37°
Sun, 0861° / 44°0
61 °
Saint Johns, Sunday, 8 November
Overcast. High 61°, low 44°.
Pressure29.50 inHg
Wind30.4 mph W
Humidity42%
Visibility—
Dew point36°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0941° / 25°0.04
41 °
Saint Johns, Monday, 9 November
Climate normal for this date — 60-year average.
Average high41°
Average low25°
Average precipitation0.04 in
Chance of precipitation25%
Record high64° (2016)
Record low-1° (2017)
Tue, 1040° / 24°0.04
40 °
Saint Johns, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high40°
Average low24°
Average precipitation0.04 in
Chance of precipitation22%
Record high60° (2025)
Record low-1° (2019)
Wed, 1140° / 23°0.02
40 °
Saint Johns, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high40°
Average low23°
Average precipitation0.02 in
Chance of precipitation15%
Record high63° (1981)
Record low-16° (2019)
Thu, 1242° / 24°0.02
42 °
Saint Johns, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high42°
Average low24°
Average precipitation0.02 in
Chance of precipitation10%
Record high71° (1999)
Record low-6° (2014)
Fri, 1342° / 26°0.02
42 °
Saint Johns, Friday, 13 November
Climate normal for this date — 60-year average.
Average high42°
Average low26°
Average precipitation0.02 in
Chance of precipitation10%
Record high65° (2025)
Record low-4° (2014)
Sat, 1442° / 25°0.02
42 °
Saint Johns, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high42°
Average low25°
Average precipitation0.02 in
Chance of precipitation12%
Record high64° (1999)
Record low-6° (2014)
Sun, 1542° / 24°0.01
42 °
Saint Johns, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high42°
Average low24°
Average precipitation0.01 in
Chance of precipitation5%
Record high63° (2021)
Record low-3° (2014)
Mon, 1642° / 26°0.03
42 °
Saint Johns, Monday, 16 November
Climate normal for this date — 60-year average.
Average high42°
Average low26°
Average precipitation0.03 in
Chance of precipitation17%
Record high63° (2001)
Record low-1° (1989)
Tue, 1739° / 24°0.04
39 °
Saint Johns, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high39°
Average low24°
Average precipitation0.04 in
Chance of precipitation18%
Record high61° (1976)
Record low-5° (1996)
Wed, 1839° / 23°0.02
39 °
Saint Johns, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high39°
Average low23°
Average precipitation0.02 in
Chance of precipitation20%
Record high61° (2008)
Record low-7° (1978)
Thu, 1938° / 22°0.02
38 °
Saint Johns, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high38°
Average low22°
Average precipitation0.02 in
Chance of precipitation8%
Record high57° (2003)
Record low-9° (1978)
Fri, 2037° / 21°0.02
37 °
Saint Johns, Friday, 20 November
Climate normal for this date — 60-year average.
Average high37°
Average low21°
Average precipitation0.02 in
Chance of precipitation15%
Record high57° (2002)
Record low-24° (1985)
Sat, 2137° / 20°0.03
37 °
Saint Johns, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high37°
Average low20°
Average precipitation0.03 in
Chance of precipitation17%
Record high62° (1974)
Record low-28° (1996)
Sun, 2235° / 20°0.02
35 °
Saint Johns, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high35°
Average low20°
Average precipitation0.02 in
Chance of precipitation20%
Record high57° (2005)
Record low-19° (2010)
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 Saint Johns, 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 Saint Johns, 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.