Monthly outlook for Opheim, MT: average high 54.8°, average low 39.9°. That is 2.8° above the climate normal for October. Precipitation is expected on 1 day (about 0.5 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 17 October (66.1°), the coolest 13 October (28.5°).
54.8°/39.9°
Average high / low
+2.8°
Above normal
1 / 3
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
53.1°
51.1°
+1.1°
22 October – 31 October
57.6°
45.9°
+6.5°
1 November – 10 November
at normal
39.4°
—
October records over 66 years
82.2°1 October 1992All-time high
-8.9°30 October 1984All-time low
Tue, 1342° / 28°0
42 °
Opheim, Tuesday, 13 October
Clear. High 42°, low 28°.
Pressure30.12 inHg
Wind6.5 mph SW
Humidity84%
Visibility6.2 mi
Dew point32°
Wed, 1453° / 32°0
53 °
Opheim, Wednesday, 14 October
Clear. High 53°, low 32°.
Pressure30.12 inHg
Wind10.6 mph S
Humidity63%
Visibility6.2 mi
Dew point34°
Thu, 1547° / 35°0
47 °
Opheim, Thursday, 15 October
Clear. High 47°, low 35°.
Pressure30.62 inHg
Wind16.4 mph NW
Humidity62%
Visibility6.2 mi
Dew point27°
Fri, 1658° / 33°0
58 °
Opheim, Friday, 16 October
Clear. High 58°, low 33°.
Pressure30.39 inHg
Wind19.1 mph S
Humidity47%
Visibility—
Dew point28°
Sat, 1766° / 44°0
66 °
Opheim, Saturday, 17 October
Mostly clear. High 66°, low 44°.
Pressure29.80 inHg
Wind15.3 mph SW
Humidity36%
Visibility—
Dew point31°
Sun, 1861° / 49°0
61 °
Opheim, Sunday, 18 October
Partly cloudy. High 61°, low 49°.
Pressure29.80 inHg
Wind18.4 mph W
Humidity46%
Visibility—
Dew point36°
Mon, 1957° / 42°0
57 °
Opheim, Monday, 19 October
Overcast. High 57°, low 42°.
Pressure29.97 inHg
Wind20.7 mph SE
Humidity47%
Visibility—
Dew point32°
Tue, 2065° / 49°0
65 °
Opheim, Tuesday, 20 October
Partly cloudy. High 65°, low 49°.
Pressure29.62 inHg
Wind18.4 mph SE
Humidity32%
Visibility—
Dew point31°
Wed, 2150° / 41°0.01
50 °
Opheim, Wednesday, 21 October
Light rain. High 50°, low 41°.
Pressure30.00 inHg
Wind15.5 mph NW
Humidity59%
Visibility—
Dew point33°
Thu, 2254° / 39°0
54 °
Opheim, Thursday, 22 October
Overcast. High 54°, low 39°.
Pressure30.09 inHg
Wind14.4 mph NW
Humidity39%
Visibility—
Dew point24°
Fri, 2359° / 39°0
59 °
Opheim, Friday, 23 October
Clear. High 59°, low 39°.
Pressure30.15 inHg
Wind22.2 mph S
Humidity33%
Visibility—
Dew point23°
Sat, 2454° / 43°0
54 °
Opheim, Saturday, 24 October
Overcast. High 54°, low 43°.
Pressure29.94 inHg
Wind20.3 mph N
Humidity41%
Visibility—
Dew point27°
Sun, 2557° / 40°0
57 °
Opheim, Sunday, 25 October
Clear. High 57°, low 40°.
Pressure30.15 inHg
Wind11.1 mph SW
Humidity30%
Visibility—
Dew point21°
Mon, 2660° / 45°0
60 °
Opheim, Monday, 26 October
Clear. High 60°, low 45°.
Pressure29.94 inHg
Wind13.8 mph W
Humidity39%
Visibility—
Dew point30°
Tue, 2762° / 48°0
62 °
Opheim, Tuesday, 27 October
Overcast. High 62°, low 48°.
Pressure29.71 inHg
Wind9.5 mph SW
Humidity36%
Visibility—
Dew point30°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2844° / 29°0.02
44 °
Opheim, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high44°
Average low29°
Average precipitation0.02 in
Chance of precipitation15%
Record high65° (1990)
Record low-2° (1984)
Thu, 2944° / 28°0.04
44 °
Opheim, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.04 in
Chance of precipitation13%
Record high66° (1968)
Record low2° (1991)
Fri, 3043° / 27°0.02
43 °
Opheim, Friday, 30 October
Climate normal for this date — 60-year average.
Average high43°
Average low27°
Average precipitation0.02 in
Chance of precipitation15%
Record high63° (1983)
Record low-9° (1984)
Sat, 3143° / 27°0.03
43 °
Opheim, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high43°
Average low27°
Average precipitation0.03 in
Chance of precipitation13%
Record high64° (1987)
Record low-3° (1984)
Sun, 0142° / 28°0.01
42 °
Opheim, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high42°
Average low28°
Average precipitation0.01 in
Chance of precipitation12%
Record high62° (1965)
Record low-13° (1984)
Mon, 0241° / 27°0.02
41 °
Opheim, Monday, 2 November
Climate normal for this date — 60-year average.
Average high41°
Average low27°
Average precipitation0.02 in
Chance of precipitation15%
Record high66° (1965)
Record low-5° (1991)
Tue, 0341° / 28°0.02
41 °
Opheim, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high41°
Average low28°
Average precipitation0.02 in
Chance of precipitation17%
Record high62° (2020)
Record low-10° (1991)
Wed, 0442° / 27°0.03
42 °
Opheim, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high42°
Average low27°
Average precipitation0.03 in
Chance of precipitation22%
Record high63° (1983)
Record low4° (1973)
Thu, 0541° / 26°0.02
41 °
Opheim, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high41°
Average low26°
Average precipitation0.02 in
Chance of precipitation15%
Record high65° (2020)
Record low-14° (2003)
Fri, 0640° / 24°0.02
40 °
Opheim, Friday, 6 November
Climate normal for this date — 60-year average.
Average high40°
Average low24°
Average precipitation0.02 in
Chance of precipitation15%
Record high63° (2010)
Record low-4° (1991)
Sat, 0739° / 25°0.02
39 °
Opheim, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high39°
Average low25°
Average precipitation0.02 in
Chance of precipitation13%
Record high63° (1999)
Record low-2° (1991)
Sun, 0838° / 24°0.04
38 °
Opheim, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high38°
Average low24°
Average precipitation0.04 in
Chance of precipitation18%
Record high62° (1999)
Record low-5° (2000)
Mon, 0935° / 21°0.04
35 °
Opheim, Monday, 9 November
Climate normal for this date — 60-year average.
Average high35°
Average low21°
Average precipitation0.04 in
Chance of precipitation25%
Record high60° (2016)
Record low-7° (2018)
Tue, 1035° / 21°0.03
35 °
Opheim, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high35°
Average low21°
Average precipitation0.03 in
Chance of precipitation20%
Record high58° (1989)
Record low-8° (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 Opheim, 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 Opheim, 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.