Monthly outlook for Opheim, MT: average high 50.4°, average low 35.1°. That is 0.5° below the climate normal for October. Precipitation is expected on 4 days (about 0.8 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 9 October (75.9°), the coolest 16 October (27.9°).
50.4°/35.1°
Average high / low
−0.5°
Below normal
4 / 3
Wet days / normal
0.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 October – 18 October
48.8°
52.1°
-1.8°
19 October – 28 October
52.9°
48.4°
+2.5°
29 October – 7 November
at normal
41.6°
—
October records over 66 years
82.2°1 October 1992All-time high
-8.9°30 October 1984All-time low
Sat, 1053° / 41°0.06
53 °
Opheim, Saturday, 10 October
Light rain. High 53°, low 41°.
Pressure29.68 inHg
Wind10.6 mph NW
Humidity63%
Visibility6.2 mi
Dew point41°
Sun, 1142° / 33°0.31
42 °
Opheim, Sunday, 11 October
Snow. High 42°, low 33°.
Pressure30.15 inHg
Wind13.9 mph NE
Humidity87%
Visibility3.3 mi
Dew point31°
Mon, 1233° / 31°0.39
33 °
Opheim, Monday, 12 October
Snow. High 33°, low 31°.
Pressure30.18 inHg
Wind7.4 mph NE
Humidity95%
Visibility3.9 mi
Dew point32°
Tue, 1344° / 32°0
44 °
Opheim, Tuesday, 13 October
Overcast. High 44°, low 32°.
Pressure30.18 inHg
Wind9.6 mph SW
Humidity82%
Visibility—
Dew point31°
Wed, 1455° / 34°0
55 °
Opheim, Wednesday, 14 October
Clear. High 55°, low 34°.
Pressure29.97 inHg
Wind13.9 mph SW
Humidity61%
Visibility—
Dew point35°
Thu, 1543° / 34°0.01
43 °
Opheim, Thursday, 15 October
Light rain. High 43°, low 34°.
Pressure30.18 inHg
Wind29.7 mph NW
Humidity63%
Visibility—
Dew point29°
Fri, 1638° / 28°0
38 °
Opheim, Friday, 16 October
Overcast. High 38°, low 28°.
Pressure30.62 inHg
Wind30 mph NW
Humidity49%
Visibility—
Dew point16°
Sat, 1750° / 30°0
50 °
Opheim, Saturday, 17 October
Overcast. High 50°, low 30°.
Pressure30.03 inHg
Wind16.1 mph SE
Humidity37%
Visibility—
Dew point18°
Sun, 1854° / 36°0
54 °
Opheim, Sunday, 18 October
Overcast. High 54°, low 36°.
Pressure30.09 inHg
Wind9.3 mph W
Humidity33%
Visibility—
Dew point20°
Mon, 1961° / 40°0
61 °
Opheim, Monday, 19 October
Mostly clear. High 61°, low 40°.
Pressure29.83 inHg
Wind14.6 mph S
Humidity29%
Visibility—
Dew point22°
Tue, 2053° / 43°0.01
53 °
Opheim, Tuesday, 20 October
Light rain. High 53°, low 43°.
Pressure30.06 inHg
Wind15.8 mph NW
Humidity45%
Visibility—
Dew point28°
Wed, 2160° / 41°0
60 °
Opheim, Wednesday, 21 October
Overcast. High 60°, low 41°.
Pressure29.83 inHg
Wind31.3 mph NW
Humidity42%
Visibility—
Dew point29°
Thu, 2241° / 33°0.04
41 °
Opheim, Thursday, 22 October
Snow. High 41°, low 33°.
Pressure30.39 inHg
Wind30 mph NW
Humidity79%
Visibility—
Dew point30°
Fri, 2344° / 28°0
44 °
Opheim, Friday, 23 October
Partly cloudy. High 44°, low 28°.
Pressure30.30 inHg
Wind14.2 mph S
Humidity49%
Visibility—
Dew point21°
Sat, 2460° / 35°0
60 °
Opheim, Saturday, 24 October
Clear. High 60°, low 35°.
Pressure29.97 inHg
Wind11.8 mph SE
Humidity29%
Visibility—
Dew point20°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2548° / 32°0.02
48 °
Opheim, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high48°
Average low32°
Average precipitation0.02 in
Chance of precipitation12%
Record high67° (1968)
Record low1° (2020)
Mon, 2647° / 31°0.03
47 °
Opheim, Monday, 26 October
Climate normal for this date — 60-year average.
Average high47°
Average low31°
Average precipitation0.03 in
Chance of precipitation23%
Record high69° (1966)
Record low2° (2020)
Tue, 2745° / 29°0.03
45 °
Opheim, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high45°
Average low29°
Average precipitation0.03 in
Chance of precipitation18%
Record high67° (1983)
Record low11° (1984)
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)
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.