Monthly outlook for Iverness, MT: average high 55.2°, average low 39.4°. That is 0.3° 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 (69.4°), the coolest 13 October (25.1°).
55.2°/39.4°
Average high / low
+0.3°
Above normal
1 / 2
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
53.9°
55.8°
-1.1°
22 October – 31 October
57.4°
50.8°
+3.7°
1 November – 10 November
at normal
44.7°
—
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 (13 mi).
Tue, 1344° / 25°0
44 °
Iverness, Tuesday, 13 October
Clear. High 44°, low 25°.
Pressure30.12 inHg
Wind0.7 mph S
Humidity75%
Visibility6.2 mi
Dew point29°
Wed, 1457° / 31°0
57 °
Iverness, Wednesday, 14 October
Overcast. High 57°, low 31°.
Pressure30.09 inHg
Wind9.6 mph SW
Humidity56%
Visibility6.2 mi
Dew point32°
Thu, 1553° / 38°0
53 °
Iverness, Thursday, 15 October
Clear. High 53°, low 38°.
Pressure30.65 inHg
Wind3.7 mph N
Humidity49%
Visibility6.2 mi
Dew point26°
Fri, 1666° / 36°0
66 °
Iverness, Friday, 16 October
Clear. High 66°, low 36°.
Pressure30.27 inHg
Wind11.5 mph SW
Humidity44%
Visibility6.2 mi
Dew point34°
Sat, 1769° / 46°0
69 °
Iverness, Saturday, 17 October
Partly cloudy. High 69°, low 46°.
Pressure29.85 inHg
Wind14.7 mph W
Humidity39%
Visibility—
Dew point34°
Sun, 1858° / 48°0
58 °
Iverness, Sunday, 18 October
Clear. High 58°, low 48°.
Pressure29.85 inHg
Wind23.5 mph W
Humidity32%
Visibility—
Dew point26°
Mon, 1959° / 43°0
59 °
Iverness, Monday, 19 October
Overcast. High 59°, low 43°.
Pressure29.83 inHg
Wind11.7 mph S
Humidity42%
Visibility—
Dew point29°
Tue, 2057° / 44°0
57 °
Iverness, Tuesday, 20 October
Overcast. High 57°, low 44°.
Pressure29.56 inHg
Wind16.4 mph N
Humidity45%
Visibility—
Dew point32°
Wed, 2143° / 38°0.03
43 °
Iverness, Wednesday, 21 October
Light rain. High 43°, low 38°.
Pressure30.06 inHg
Wind10.6 mph NW
Humidity75%
Visibility—
Dew point32°
Thu, 2249° / 34°0
49 °
Iverness, Thursday, 22 October
Clear. High 49°, low 34°.
Pressure30.18 inHg
Wind9.2 mph S
Humidity57%
Visibility—
Dew point28°
Fri, 2353° / 39°0
53 °
Iverness, Friday, 23 October
Overcast. High 53°, low 39°.
Pressure29.83 inHg
Wind13.8 mph S
Humidity62%
Visibility—
Dew point35°
Sat, 2456° / 42°0
56 °
Iverness, Saturday, 24 October
Mostly clear. High 56°, low 42°.
Pressure30.27 inHg
Wind22.6 mph NW
Humidity34%
Visibility—
Dew point24°
Sun, 2560° / 43°0
60 °
Iverness, Sunday, 25 October
Partly cloudy. High 60°, low 43°.
Pressure30.39 inHg
Wind16 mph SW
Humidity41%
Visibility—
Dew point29°
Mon, 2665° / 47°0
65 °
Iverness, Monday, 26 October
Overcast. High 65°, low 47°.
Pressure30.27 inHg
Wind11.4 mph SW
Humidity34%
Visibility—
Dew point29°
Tue, 2761° / 47°0
61 °
Iverness, Tuesday, 27 October
Overcast. High 61°, low 47°.
Pressure30.24 inHg
Wind10.2 mph S
Humidity44%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2849° / 31°0.02
49 °
Iverness, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high49°
Average low31°
Average precipitation0.02 in
Chance of precipitation13%
Record high69° (1987)
Record low-3° (1991)
Thu, 2948° / 31°0.02
48 °
Iverness, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high48°
Average low31°
Average precipitation0.02 in
Chance of precipitation13%
Record high72° (2008)
Record low-11° (1991)
Fri, 3048° / 30°0.01
48 °
Iverness, Friday, 30 October
Climate normal for this date — 60-year average.
Average high48°
Average low30°
Average precipitation0.01 in
Chance of precipitation7%
Record high68° (1983)
Record low-14° (1991)
Sat, 3147° / 30°0.04
47 °
Iverness, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high47°
Average low30°
Average precipitation0.04 in
Chance of precipitation23%
Record high64° (1983)
Record low-5° (1984)
Sun, 0147° / 30°0.01
47 °
Iverness, 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 °
Iverness, 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 °
Iverness, 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 °
Iverness, 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 °
Iverness, 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 °
Iverness, 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 °
Iverness, 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 °
Iverness, 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 °
Iverness, 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 °
Iverness, 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)
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 Iverness, 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 Iverness, 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.