Monthly outlook for Ennis, MT: average high 52.1°, average low 34.3°. That is 0.8° below the climate normal for October. Precipitation is expected on 5 days (about 1.9 inches), against a normal of 4 days and 0.9 inches. The warmest day looks like 18 October (66°), the coolest 13 October (23.8°).
52.1°/34.3°
Average high / low
−0.8°
Below normal
5 / 4
Wet days / normal
1.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 October – 19 October
50.7°
54.2°
-2°
20 October – 29 October
54.4°
50.6°
+2.1°
30 October – 8 November
at normal
44°
—
October records over 66 years
82.4°3 October 2010All-time high
-9.8°29 October 1971All-time low
Sun, 1143° / 30°0.66
43 °
Ennis, Sunday, 11 October
Snow. High 43°, low 30°.
Pressure29.94 inHg
Wind10.6 mph N
Humidity90%
Visibility2.9 mi
Dew point31°
Mon, 1233° / 28°0.44
33 °
Ennis, Monday, 12 October
Snow. High 33°, low 28°.
Pressure30.12 inHg
Wind2.2 mph N
Humidity97%
Visibility6.2 mi
Dew point28°
Tue, 1338° / 24°0
38 °
Ennis, Tuesday, 13 October
Mostly clear. High 38°, low 24°.
Pressure30.15 inHg
Wind2.4 mph SW
Humidity92%
Visibility6.2 mi
Dew point30°
Wed, 1442° / 28°0
42 °
Ennis, Wednesday, 14 October
Overcast. High 42°, low 28°.
Pressure30.27 inHg
Wind1.7 mph W
Humidity79%
Visibility—
Dew point30°
Thu, 1550° / 32°0.01
50 °
Ennis, Thursday, 15 October
Light snow. High 50°, low 32°.
Pressure30.36 inHg
Wind6.6 mph N
Humidity60%
Visibility—
Dew point30°
Fri, 1642° / 27°0.02
42 °
Ennis, Friday, 16 October
Light snow. High 42°, low 27°.
Pressure30.71 inHg
Wind8.7 mph NE
Humidity34%
Visibility—
Dew point10°
Sat, 1765° / 30°0
65 °
Ennis, Saturday, 17 October
Clear. High 65°, low 30°.
Pressure30.21 inHg
Wind10.6 mph SW
Humidity17%
Visibility—
Dew point11°
Sun, 1866° / 40°0
66 °
Ennis, Sunday, 18 October
Overcast. High 66°, low 40°.
Pressure30.00 inHg
Wind12.1 mph SW
Humidity27%
Visibility—
Dew point24°
Mon, 1965° / 42°0
65 °
Ennis, Monday, 19 October
Overcast. High 65°, low 42°.
Pressure29.94 inHg
Wind14 mph SW
Humidity32%
Visibility—
Dew point27°
Tue, 2065° / 45°0
65 °
Ennis, Tuesday, 20 October
Overcast. High 65°, low 45°.
Pressure29.77 inHg
Wind16.8 mph S
Humidity27%
Visibility—
Dew point25°
Wed, 2154° / 41°0.05
54 °
Ennis, Wednesday, 21 October
Snow. High 54°, low 41°.
Pressure29.77 inHg
Wind11.7 mph W
Humidity21%
Visibility—
Dew point14°
Thu, 2254° / 35°0
54 °
Ennis, Thursday, 22 October
Overcast. High 54°, low 35°.
Pressure30.06 inHg
Wind19.4 mph S
Humidity38%
Visibility—
Dew point22°
Fri, 2351° / 39°0.03
51 °
Ennis, Friday, 23 October
Light rain. High 51°, low 39°.
Pressure29.88 inHg
Wind17 mph S
Humidity69%
Visibility—
Dew point38°
Sat, 2453° / 33°0.03
53 °
Ennis, Saturday, 24 October
Light rain. High 53°, low 33°.
Pressure30.09 inHg
Wind13.7 mph S
Humidity34%
Visibility—
Dew point18°
Sun, 2549° / 39°0.09
49 °
Ennis, Sunday, 25 October
Snow. High 49°, low 39°.
Pressure29.47 inHg
Wind19.5 mph S
Humidity89%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2649° / 31°0.09
49 °
Ennis, Monday, 26 October
Climate normal for this date — 60-year average.
Average high49°
Average low31°
Average precipitation0.09 in
Chance of precipitation37%
Record high66° (1999)
Record low-3° (2020)
Tue, 2749° / 28°0.04
49 °
Ennis, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high49°
Average low28°
Average precipitation0.04 in
Chance of precipitation23%
Record high66° (2024)
Record low3° (1996)
Wed, 2848° / 28°0.09
48 °
Ennis, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high48°
Average low28°
Average precipitation0.09 in
Chance of precipitation35%
Record high66° (1987)
Record low1° (2019)
Thu, 2946° / 27°0.07
46 °
Ennis, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high46°
Average low27°
Average precipitation0.07 in
Chance of precipitation33%
Record high67° (1964)
Record low-10° (1971)
Fri, 3045° / 25°0.06
45 °
Ennis, Friday, 30 October
Climate normal for this date — 60-year average.
Average high45°
Average low25°
Average precipitation0.06 in
Chance of precipitation30%
Record high67° (1962)
Record low-10° (1972)
Sat, 3144° / 26°0.06
44 °
Ennis, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high44°
Average low26°
Average precipitation0.06 in
Chance of precipitation32%
Record high64° (2008)
Record low-6° (1972)
Sun, 0144° / 26°0.05
44 °
Ennis, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high44°
Average low26°
Average precipitation0.05 in
Chance of precipitation27%
Record high65° (2014)
Record low-16° (2002)
Mon, 0244° / 25°0.05
44 °
Ennis, Monday, 2 November
Climate normal for this date — 60-year average.
Average high44°
Average low25°
Average precipitation0.05 in
Chance of precipitation28%
Record high63° (2020)
Record low-11° (1995)
Tue, 0345° / 25°0.05
45 °
Ennis, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high45°
Average low25°
Average precipitation0.05 in
Chance of precipitation27%
Record high64° (2020)
Record low-7° (1991)
Wed, 0445° / 26°0.05
45 °
Ennis, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high45°
Average low26°
Average precipitation0.05 in
Chance of precipitation28%
Record high62° (2020)
Record low-5° (1973)
Thu, 0545° / 26°0.07
45 °
Ennis, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high45°
Average low26°
Average precipitation0.07 in
Chance of precipitation35%
Record high64° (2020)
Record low-11° (2003)
Fri, 0644° / 25°0.05
44 °
Ennis, Friday, 6 November
Climate normal for this date — 60-year average.
Average high44°
Average low25°
Average precipitation0.05 in
Chance of precipitation37%
Record high64° (2020)
Record low-4° (2003)
Sat, 0743° / 24°0.05
43 °
Ennis, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high43°
Average low24°
Average precipitation0.05 in
Chance of precipitation30%
Record high62° (1999)
Record low-4° (1990)
Sun, 0842° / 23°0.08
42 °
Ennis, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high42°
Average low23°
Average precipitation0.08 in
Chance of precipitation43%
Record high60° (2016)
Record low0° (2000)
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 Ennis, 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 Ennis, 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.