Monthly outlook for Saint Johns, MT: average high 47°, average low 33.7°. That is 0.1° below the climate normal for October. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 2 days and 0.4 inches. The warmest day looks like 5 November (55.2°), the coolest 30 October (28.2°).
47°/33.7°
Average high / low
−0.1°
Below normal
2 / 2
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
25 October – 3 November
44.8°
48.8°
-2.2°
4 November – 13 November
50.7°
43°
+4.3°
14 November – 23 November
at normal
38.8°
—
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).
Mon, 2646° / 30°0
46 °
Saint Johns, Monday, 26 October
Overcast. High 46°, low 30°.
Pressure30.21 inHg
Wind13.4 mph SE
Humidity67%
Visibility6.2 mi
Dew point31°
Tue, 2745° / 34°0.09
45 °
Saint Johns, Tuesday, 27 October
Light rain. High 45°, low 34°.
Pressure29.83 inHg
Wind6.5 mph W
Humidity90%
Visibility6.2 mi
Dew point35°
Wed, 2851° / 31°0.01
51 °
Saint Johns, Wednesday, 28 October
Light rain. High 51°, low 31°.
Pressure29.97 inHg
Wind1.4 mph SW
Humidity69%
Visibility6.2 mi
Dew point33°
Thu, 2940° / 31°0
40 °
Saint Johns, Thursday, 29 October
Overcast. High 40°, low 31°.
Pressure30.24 inHg
Wind6 mph NW
Humidity79%
Visibility6.2 mi
Dew point27°
Fri, 3039° / 28°0.03
39 °
Saint Johns, Friday, 30 October
Light snow. High 39°, low 28°.
Pressure30.15 inHg
Wind13.4 mph E
Humidity77%
Visibility—
Dew point29°
Sat, 3150° / 33°0
50 °
Saint Johns, Saturday, 31 October
Partly cloudy. High 50°, low 33°.
Pressure30.00 inHg
Wind7.6 mph E
Humidity65%
Visibility—
Dew point31°
Sun, 0146° / 35°0.15
46 °
Saint Johns, Sunday, 1 November
Snow. High 46°, low 35°.
Pressure29.74 inHg
Wind20.7 mph NW
Humidity67%
Visibility—
Dew point35°
Mon, 0246° / 35°0.01
46 °
Saint Johns, Monday, 2 November
Light snow. High 46°, low 35°.
Pressure29.97 inHg
Wind23 mph W
Humidity46%
Visibility—
Dew point23°
Tue, 0342° / 31°0
42 °
Saint Johns, Tuesday, 3 November
Clear. High 42°, low 31°.
Pressure30.12 inHg
Wind7.9 mph E
Humidity59%
Visibility—
Dew point25°
Wed, 0451° / 33°0
51 °
Saint Johns, Wednesday, 4 November
Overcast. High 51°, low 33°.
Pressure30.06 inHg
Wind8.9 mph S
Humidity52%
Visibility—
Dew point27°
Thu, 0555° / 42°0
55 °
Saint Johns, Thursday, 5 November
Overcast. High 55°, low 42°.
Pressure29.85 inHg
Wind8.4 mph S
Humidity63%
Visibility—
Dew point38°
Fri, 0649° / 37°0
49 °
Saint Johns, Friday, 6 November
Overcast. High 49°, low 37°.
Pressure29.71 inHg
Wind19.3 mph NW
Humidity83%
Visibility—
Dew point38°
Sat, 0740° / 34°0
40 °
Saint Johns, Saturday, 7 November
Overcast. High 40°, low 34°.
Pressure30.06 inHg
Wind11.5 mph E
Humidity79%
Visibility—
Dew point29°
Sun, 0854° / 37°0
54 °
Saint Johns, Sunday, 8 November
Overcast. High 54°, low 37°.
Pressure29.97 inHg
Wind12.1 mph SW
Humidity56%
Visibility—
Dew point33°
Mon, 0954° / 41°0
54 °
Saint Johns, Monday, 9 November
Overcast. High 54°, low 41°.
Pressure29.91 inHg
Wind12.3 mph E
Humidity50%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Mon, 2336° / 20°0.02
36 °
Saint Johns, Monday, 23 November
Climate normal for this date — 60-year average.
Average high36°
Average low20°
Average precipitation0.02 in
Chance of precipitation17%
Record high62° (2017)
Record low-29° (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 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.