Monthly outlook for Inverness, MT: average high 54.4°, average low 37.2°. That is 0.9° above the climate normal for October. Precipitation is expected on 2 days (about 1.2 inches), against a normal of 2 days and 0.4 inches. The warmest day looks like 16 October (71.2°), the coolest 16 October (29.9°).
54.4°/37.2°
Average high / low
+0.9°
Above normal
2 / 2
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
16 October – 25 October
57.2°
55°
+1.2°
26 October – 4 November
49.8°
48.3°
+0.8°
5 November – 14 November
at normal
42.5°
—
October records over 66 years
86°7 October 1980All-time high
-13.9°30 October 1991All-time low
Climate normals and records are computed from the nearest reference point — Chester (12 mi).
Sat, 1771° / 42°0
71 °
Inverness, Saturday, 17 October
Overcast. High 71°, low 42°.
Pressure29.85 inHg
Wind13.2 mph SW
Humidity32%
Visibility6.2 mi
Dew point33°
Sun, 1858° / 40°0
58 °
Inverness, Sunday, 18 October
Clear. High 58°, low 40°.
Pressure30.15 inHg
Wind8.6 mph SE
Humidity41%
Visibility6.2 mi
Dew point25°
Mon, 1960° / 38°0
60 °
Inverness, Monday, 19 October
Overcast. High 60°, low 38°.
Pressure29.91 inHg
Wind4.4 mph S
Humidity49%
Visibility6.2 mi
Dew point35°
Tue, 2055° / 42°0
55 °
Inverness, Tuesday, 20 October
Overcast. High 55°, low 42°.
Pressure30.09 inHg
Wind10.6 mph N
Humidity56%
Visibility6.2 mi
Dew point36°
Wed, 2161° / 38°0
61 °
Inverness, Wednesday, 21 October
Clear. High 61°, low 38°.
Pressure30.06 inHg
Wind9.5 mph S
Humidity62%
Visibility—
Dew point39°
Thu, 2260° / 44°0.02
60 °
Inverness, Thursday, 22 October
Light rain. High 60°, low 44°.
Pressure29.77 inHg
Wind9.1 mph S
Humidity63%
Visibility—
Dew point40°
Fri, 2350° / 40°0
50 °
Inverness, Friday, 23 October
Overcast. High 50°, low 40°.
Pressure29.97 inHg
Wind30.3 mph N
Humidity66%
Visibility—
Dew point31°
Sat, 2443° / 34°0
43 °
Inverness, Saturday, 24 October
Overcast. High 43°, low 34°.
Pressure30.42 inHg
Wind24.2 mph NW
Humidity34%
Visibility—
Dew point14°
Sun, 2544° / 30°0
44 °
Inverness, Sunday, 25 October
Clear. High 44°, low 30°.
Pressure30.39 inHg
Wind11.2 mph S
Humidity35%
Visibility—
Dew point13°
Mon, 2651° / 31°0
51 °
Inverness, Monday, 26 October
Clear. High 51°, low 31°.
Pressure30.12 inHg
Wind10 mph S
Humidity40%
Visibility—
Dew point20°
Tue, 2752° / 35°0
52 °
Inverness, Tuesday, 27 October
Mostly clear. High 52°, low 35°.
Pressure29.77 inHg
Wind9.9 mph NE
Humidity44%
Visibility—
Dew point25°
Wed, 2843° / 38°1.1
43 °
Inverness, Wednesday, 28 October
Rain. High 43°, low 38°.
Pressure29.56 inHg
Wind17.1 mph W
Humidity92%
Visibility—
Dew point38°
Thu, 2945° / 35°0.04
45 °
Inverness, Thursday, 29 October
Light rain. High 45°, low 35°.
Pressure30.03 inHg
Wind12.7 mph W
Humidity57%
Visibility—
Dew point27°
Fri, 3054° / 37°0
54 °
Inverness, Friday, 30 October
Clear. High 54°, low 37°.
Pressure29.83 inHg
Wind26.2 mph SW
Humidity50%
Visibility—
Dew point29°
Sat, 3154° / 40°0
54 °
Inverness, Saturday, 31 October
Mostly clear. High 54°, low 40°.
Pressure29.53 inHg
Wind29.9 mph SW
Humidity46%
Visibility—
Dew point30°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0147° / 30°0.01
47 °
Inverness, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high47°
Average low30°
Average precipitation0.01 in
Chance of precipitation7%
Record high69° (2025)
Record low-9° (1984)
Mon, 0247° / 30°0.02
47 °
Inverness, Monday, 2 November
Climate normal for this date — 60-year average.
Average high47°
Average low30°
Average precipitation0.02 in
Chance of precipitation17%
Record high65° (1981)
Record low-18° (1991)
Tue, 0348° / 30°0.02
48 °
Inverness, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high48°
Average low30°
Average precipitation0.02 in
Chance of precipitation12%
Record high67° (1981)
Record low-2° (1991)
Wed, 0447° / 31°0.03
47 °
Inverness, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high47°
Average low31°
Average precipitation0.03 in
Chance of precipitation17%
Record high67° (2001)
Record low5° (2003)
Thu, 0546° / 29°0.03
46 °
Inverness, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high46°
Average low29°
Average precipitation0.03 in
Chance of precipitation22%
Record high68° (2010)
Record low-8° (2003)
Fri, 0644° / 28°0.02
44 °
Inverness, Friday, 6 November
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.02 in
Chance of precipitation15%
Record high67° (2010)
Record low2° (2003)
Sat, 0744° / 28°0.02
44 °
Inverness, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.02 in
Chance of precipitation22%
Record high70° (2010)
Record low-6° (1973)
Sun, 0843° / 27°0.04
43 °
Inverness, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high43°
Average low27°
Average precipitation0.04 in
Chance of precipitation23%
Record high59° (1999)
Record low-1° (1973)
Mon, 0942° / 26°0.04
42 °
Inverness, Monday, 9 November
Climate normal for this date — 60-year average.
Average high42°
Average low26°
Average precipitation0.04 in
Chance of precipitation23%
Record high62° (1961)
Record low-7° (2022)
Tue, 1040° / 25°0.03
40 °
Inverness, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high40°
Average low25°
Average precipitation0.03 in
Chance of precipitation22%
Record high63° (2025)
Record low-1° (2022)
Wed, 1140° / 23°0.02
40 °
Inverness, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high40°
Average low23°
Average precipitation0.02 in
Chance of precipitation25%
Record high64° (1990)
Record low-9° (2012)
Thu, 1242° / 25°0.02
42 °
Inverness, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high42°
Average low25°
Average precipitation0.02 in
Chance of precipitation12%
Record high71° (1999)
Record low-8° (2014)
Fri, 1342° / 27°0.01
42 °
Inverness, Friday, 13 November
Climate normal for this date — 60-year average.
Average high42°
Average low27°
Average precipitation0.01 in
Chance of precipitation8%
Record high66° (2025)
Record low-2° (2014)
Sat, 1442° / 26°0.03
42 °
Inverness, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high42°
Average low26°
Average precipitation0.03 in
Chance of precipitation17%
Record high65° (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 Inverness, 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 Inverness, 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.