Monthly outlook for Saint Johns, MT: average high 49.8°, average low 35.9°. That is 2.3° above the climate normal for October. Precipitation is expected on 3 days (about 0.5 inches), against a normal of 3 days and 0.4 inches. The warmest day looks like 7 November (60.5°), the coolest 30 October (27.8°).
49.8°/35.9°
Average high / low
+2.3°
Above normal
3 / 3
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
27 October – 5 November
46.7°
47.7°
-0.6°
6 November – 15 November
55°
42°
+7.2°
16 November – 25 November
at normal
37.4°
—
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).
Wed, 2848° / 31°0.06
48 °
Saint Johns, Wednesday, 28 October
Light rain. High 48°, low 31°.
Pressure29.97 inHg
Wind5.4 mph NW
Humidity73%
Visibility6.2 mi
Dew point33°
Thu, 2942° / 29°0
42 °
Saint Johns, Thursday, 29 October
Partly cloudy. High 42°, low 29°.
Pressure30.27 inHg
Wind4.4 mph NW
Humidity77%
Visibility6.2 mi
Dew point28°
Fri, 3042° / 28°0
42 °
Saint Johns, Friday, 30 October
Overcast. High 42°, low 28°.
Pressure30.24 inHg
Wind14.9 mph E
Humidity79%
Visibility6.2 mi
Dew point29°
Sat, 3150° / 30°0
50 °
Saint Johns, Saturday, 31 October
Mostly clear. High 50°, low 30°.
Pressure30.06 inHg
Wind3.5 mph SW
Humidity72%
Visibility6.2 mi
Dew point34°
Sun, 0144° / 33°0.11
44 °
Saint Johns, Sunday, 1 November
Light rain. High 44°, low 33°.
Pressure30.03 inHg
Wind10 mph NW
Humidity69%
Visibility—
Dew point33°
Mon, 0245° / 31°0
45 °
Saint Johns, Monday, 2 November
Clear. High 45°, low 31°.
Pressure30.24 inHg
Wind17.6 mph NW
Humidity49%
Visibility—
Dew point21°
Tue, 0347° / 33°0
47 °
Saint Johns, Tuesday, 3 November
Partly cloudy. High 47°, low 33°.
Pressure30.24 inHg
Wind8.3 mph S
Humidity50%
Visibility—
Dew point24°
Wed, 0451° / 35°0
51 °
Saint Johns, Wednesday, 4 November
Clear. High 51°, low 35°.
Pressure30.00 inHg
Wind4 mph E
Humidity36%
Visibility—
Dew point19°
Thu, 0553° / 37°0
53 °
Saint Johns, Thursday, 5 November
Overcast. High 53°, low 37°.
Pressure30.00 inHg
Wind5.6 mph SE
Humidity38%
Visibility—
Dew point23°
Fri, 0656° / 40°0
56 °
Saint Johns, Friday, 6 November
Mostly clear. High 56°, low 40°.
Pressure29.91 inHg
Wind14.3 mph SW
Humidity41%
Visibility—
Dew point27°
Sat, 0761° / 45°0
61 °
Saint Johns, Saturday, 7 November
Overcast. High 61°, low 45°.
Pressure29.71 inHg
Wind16.2 mph SW
Humidity40%
Visibility—
Dew point30°
Sun, 0855° / 46°0
55 °
Saint Johns, Sunday, 8 November
Overcast. High 55°, low 46°.
Pressure29.83 inHg
Wind18.8 mph E
Humidity46%
Visibility—
Dew point33°
Mon, 0954° / 45°0
54 °
Saint Johns, Monday, 9 November
Overcast. High 54°, low 45°.
Pressure29.91 inHg
Wind19 mph E
Humidity61%
Visibility—
Dew point37°
Tue, 1056° / 41°0
56 °
Saint Johns, Tuesday, 10 November
Overcast. High 56°, low 41°.
Pressure29.97 inHg
Wind22.2 mph W
Humidity44%
Visibility—
Dew point32°
Wed, 1149° / 36°0
49 °
Saint Johns, Wednesday, 11 November
Overcast. High 49°, low 36°.
Pressure30.27 inHg
Wind8.2 mph NW
Humidity50%
Visibility—
Dew point25°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Tue, 2436° / 21°0.03
36 °
Saint Johns, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high36°
Average low21°
Average precipitation0.03 in
Chance of precipitation23%
Record high52° (2017)
Record low-19° (1993)
Wed, 2534° / 20°0.04
34 °
Saint Johns, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high34°
Average low20°
Average precipitation0.04 in
Chance of precipitation20%
Record high53° (1962)
Record low-15° (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.