As of 01:50 MDT

Weather in Saint Johns, MT

35°Current weather

Saint Johns, Friday, 16 October, 01:50

Clear. Feels like 31°. High 64°, low 34°.

Pressure30.59 inHg
Wind4.7 mph SE
Humidity84%
Visibility6.2 mi
Dew point30°

Monthly outlook for Saint Johns, MT: average high 55.6°, average low 38.6°. That is 1.5° above the climate normal for October. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 2 days and 0.4 inches. The warmest day looks like 17 October (71.5°), the coolest 25 October (33.7°).

55.6°/38.6°
Average high / low
+1.5°
Above normal
1 / 2
Wet days / normal
0.2 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
16 October – 25 October59.1°55.2°+2.2°
26 October – 4 November49.8°48.2°+0.9°
5 November – 14 Novemberat normal42.4°—

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).

Sat, 1771° / 43°0Overcast
71 °Overcast

Saint Johns, Saturday, 17 October

Overcast. High 71°, low 43°.

Pressure29.83 inHg
Wind14.1 mph SW
Humidity34%
Visibility6.2 mi
Dew point35°
Sun, 1859° / 36°0Clear
59 °Clear

Saint Johns, Sunday, 18 October

Clear. High 59°, low 36°.

Pressure30.12 inHg
Wind8.4 mph SE
Humidity43%
Visibility6.2 mi
Dew point33°
Mon, 1960° / 38°0Overcast
60 °Overcast

Saint Johns, Monday, 19 October

Overcast. High 60°, low 38°.

Pressure29.88 inHg
Wind4.1 mph SE
Humidity50%
Visibility6.2 mi
Dew point33°
Tue, 2062° / 44°0Overcast
62 °Overcast

Saint Johns, Tuesday, 20 October

Overcast. High 62°, low 44°.

Pressure29.85 inHg
Wind11.5 mph NW
Humidity68%
Visibility—
Dew point43°
Wed, 2158° / 38°0.02Light rain
58 °Light rain

Saint Johns, Wednesday, 21 October

Light rain. High 58°, low 38°.

Pressure30.09 inHg
Wind7.7 mph NW
Humidity59%
Visibility—
Dew point36°
Thu, 2269° / 49°0Clear
69 °Clear

Saint Johns, Thursday, 22 October

Clear. High 69°, low 49°.

Pressure29.68 inHg
Wind13.3 mph SW
Humidity35%
Visibility—
Dew point34°
Fri, 2353° / 42°0.19Rain
53 °Rain

Saint Johns, Friday, 23 October

Rain. High 53°, low 42°.

Pressure29.94 inHg
Wind25.1 mph N
Humidity57%
Visibility—
Dew point31°
Sat, 2446° / 35°0Overcast
46 °Overcast

Saint Johns, Saturday, 24 October

Overcast. High 46°, low 35°.

Pressure30.36 inHg
Wind21.7 mph NW
Humidity40%
Visibility—
Dew point19°
Sun, 2549° / 34°0Clear
49 °Clear

Saint Johns, Sunday, 25 October

Clear. High 49°, low 34°.

Pressure30.21 inHg
Wind9.2 mph E
Humidity39%
Visibility—
Dew point19°
Mon, 2644° / 38°0.03Light rain
44 °Light rain

Saint Johns, Monday, 26 October

Light rain. High 44°, low 38°.

Pressure30.06 inHg
Wind12.8 mph NW
Humidity60%
Visibility—
Dew point29°
Tue, 2744° / 37°0Overcast
44 °Overcast

Saint Johns, Tuesday, 27 October

Overcast. High 44°, low 37°.

Pressure29.94 inHg
Wind11.6 mph SE
Humidity67%
Visibility—
Dew point30°
Wed, 2857° / 37°0Overcast
57 °Overcast

Saint Johns, Wednesday, 28 October

Overcast. High 57°, low 37°.

Pressure29.53 inHg
Wind29.7 mph W
Humidity37%
Visibility—
Dew point25°
Thu, 2950° / 37°0Partly cloudy
50 °Partly cloudy

Saint Johns, Thursday, 29 October

Partly cloudy. High 50°, low 37°.

Pressure29.94 inHg
Wind19.2 mph W
Humidity39%
Visibility—
Dew point22°
Fri, 3056° / 38°0Overcast
56 °Overcast

Saint Johns, Friday, 30 October

Overcast. High 56°, low 38°.

Pressure29.77 inHg
Wind31.5 mph W
Humidity38%
Visibility—
Dew point24°
Sat, 3148° / 38°0Mostly clear
48 °Mostly clear

Saint Johns, Saturday, 31 October

Mostly clear. High 48°, low 38°.

Pressure29.88 inHg
Wind28.8 mph W
Humidity33%
Visibility—
Dew point19°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0147° / 29°0.01Climate normal
47 °Climate normal

Saint Johns, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high47°
Average low29°
Average precipitation0.01 in
Chance of precipitation8%
Record high68° (1965)
Record low-19° (1984)
Mon, 0247° / 29°0.02Climate normal
47 °Climate normal

Saint Johns, Monday, 2 November

Climate normal for this date — 60-year average.

Average high47°
Average low29°
Average precipitation0.02 in
Chance of precipitation12%
Record high65° (1978)
Record low-14° (1991)
Tue, 0347° / 29°0.02Climate normal
47 °Climate normal

Saint Johns, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high47°
Average low29°
Average precipitation0.02 in
Chance of precipitation13%
Record high66° (1983)
Record low-12° (1991)
Wed, 0447° / 31°0.02Climate normal
47 °Climate normal

Saint Johns, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high47°
Average low31°
Average precipitation0.02 in
Chance of precipitation10%
Record high69° (1975)
Record low4° (2003)
Thu, 0546° / 29°0.04Climate normal
46 °Climate normal

Saint Johns, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high46°
Average low29°
Average precipitation0.04 in
Chance of precipitation25%
Record high67° (1975)
Record low-9° (2003)
Fri, 0644° / 27°0.02Climate normal
44 °Climate normal

Saint Johns, Friday, 6 November

Climate normal for this date — 60-year average.

Average high44°
Average low27°
Average precipitation0.02 in
Chance of precipitation15%
Record high66° (2010)
Record low-1° (1991)
Sat, 0744° / 28°0.03Climate normal
44 °Climate normal

Saint Johns, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high44°
Average low28°
Average precipitation0.03 in
Chance of precipitation15%
Record high71° (2010)
Record low-4° (1973)
Sun, 0843° / 26°0.04Climate normal
43 °Climate normal

Saint Johns, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high43°
Average low26°
Average precipitation0.04 in
Chance of precipitation20%
Record high61° (1999)
Record low-2° (1973)
Mon, 0941° / 25°0.04Climate normal
41 °Climate normal

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°0.04Climate normal
40 °Climate normal

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°0.02Climate normal
40 °Climate normal

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°0.02Climate normal
42 °Climate normal

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°0.02Climate normal
42 °Climate normal

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°0.02Climate normal
42 °Climate normal

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)

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.