Monthly outlook for Ruby, MT: average high 62.5°, average low 41.4°. That is 5.1° above the climate normal for October. Precipitation is expected on 2 days (about 0.5 inches), against a normal of 4 days and 0.7 inches. The warmest day looks like 7 October (75.5°), the coolest 12 October (29.4°).
62.5°/41.4°
Average high / low
+5.1°
Above normal
2 / 4
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
7 October – 16 October
60.3°
54°
+3.5°
17 October – 26 October
66.2°
51°
+8.5°
27 October – 5 November
at normal
43.8°
—
October records over 66 years
80.8°3 October 2010All-time high
-8.9°30 October 1991All-time low
Climate normals and records are computed from the nearest reference point — Brandon (10 mi).
Thu, 0871° / 40°0
71 °
Ruby, Thursday, 8 October
Clear. High 71°, low 40°.
Pressure30.06 inHg
Wind2.2 mph W
Humidity29%
Visibility6.2 mi
Dew point32°
Fri, 0973° / 47°0
73 °
Ruby, Friday, 9 October
Mostly clear. High 73°, low 47°.
Pressure29.74 inHg
Wind3 mph S
Humidity27%
Visibility6.2 mi
Dew point31°
Sat, 1061° / 45°0.13
61 °
Ruby, Saturday, 10 October
Light rain. High 61°, low 45°.
Pressure29.53 inHg
Wind0.7 mph NW
Humidity37%
Visibility6.2 mi
Dew point34°
Sun, 1139° / 32°0.34
39 °
Ruby, Sunday, 11 October
Snow. High 39°, low 32°.
Pressure30.03 inHg
Wind4.7 mph SE
Humidity93%
Visibility—
Dew point33°
Mon, 1249° / 29°0.01
49 °
Ruby, Monday, 12 October
Light snow. High 49°, low 29°.
Pressure30.12 inHg
Wind2.6 mph W
Humidity85%
Visibility—
Dew point33°
Tue, 1364° / 44°0
64 °
Ruby, Tuesday, 13 October
Light rain. High 64°, low 44°.
Pressure29.80 inHg
Wind7.3 mph W
Humidity65%
Visibility—
Dew point46°
Wed, 1461° / 42°0.02
61 °
Ruby, Wednesday, 14 October
Light rain. High 61°, low 42°.
Pressure29.85 inHg
Wind16.2 mph NW
Humidity39%
Visibility—
Dew point31°
Thu, 1549° / 32°0
49 °
Ruby, Thursday, 15 October
Clear. High 49°, low 32°.
Pressure30.39 inHg
Wind6.5 mph NW
Humidity43%
Visibility—
Dew point21°
Fri, 1661° / 35°0
61 °
Ruby, Friday, 16 October
Clear. High 61°, low 35°.
Pressure30.36 inHg
Wind4.8 mph NW
Humidity22%
Visibility—
Dew point14°
Sat, 1769° / 43°0
69 °
Ruby, Saturday, 17 October
Partly cloudy. High 69°, low 43°.
Pressure30.21 inHg
Wind5.9 mph S
Humidity20%
Visibility—
Dew point19°
Sun, 1868° / 47°0
68 °
Ruby, Sunday, 18 October
Overcast. High 68°, low 47°.
Pressure30.00 inHg
Wind6.1 mph S
Humidity26%
Visibility—
Dew point26°
Mon, 1963° / 46°0
63 °
Ruby, Monday, 19 October
Clear. High 63°, low 46°.
Pressure30.03 inHg
Wind17 mph NW
Humidity24%
Visibility—
Dew point21°
Tue, 2067° / 43°0
67 °
Ruby, Tuesday, 20 October
Overcast. High 67°, low 43°.
Pressure30.12 inHg
Wind6.8 mph W
Humidity20%
Visibility—
Dew point18°
Wed, 2166° / 49°0
66 °
Ruby, Wednesday, 21 October
Partly cloudy. High 66°, low 49°.
Pressure30.24 inHg
Wind5.8 mph NE
Humidity26%
Visibility—
Dew point25°
Thu, 2264° / 45°0
64 °
Ruby, Thursday, 22 October
Mostly clear. High 64°, low 45°.
Pressure30.21 inHg
Wind5.1 mph SE
Humidity27%
Visibility—
Dew point27°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2350° / 31°0.04
50 °
Ruby, Friday, 23 October
Climate normal for this date — 60-year average.
Average high50°
Average low31°
Average precipitation0.04 in
Chance of precipitation25%
Record high65° (1999)
Record low13° (1961)
Sat, 2449° / 31°0.03
49 °
Ruby, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high49°
Average low31°
Average precipitation0.03 in
Chance of precipitation22%
Record high65° (1992)
Record low9° (2020)
Sun, 2549° / 30°0.04
49 °
Ruby, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high49°
Average low30°
Average precipitation0.04 in
Chance of precipitation15%
Record high65° (2005)
Record low-4° (2020)
Mon, 2647° / 30°0.06
47 °
Ruby, Monday, 26 October
Climate normal for this date — 60-year average.
Average high47°
Average low30°
Average precipitation0.06 in
Chance of precipitation32%
Record high65° (1999)
Record low-4° (2020)
Tue, 2747° / 28°0.03
47 °
Ruby, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high47°
Average low28°
Average precipitation0.03 in
Chance of precipitation17%
Record high62° (2024)
Record low5° (2019)
Wed, 2846° / 28°0.06
46 °
Ruby, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high46°
Average low28°
Average precipitation0.06 in
Chance of precipitation28%
Record high64° (1987)
Record low1° (1991)
Thu, 2944° / 27°0.04
44 °
Ruby, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high44°
Average low27°
Average precipitation0.04 in
Chance of precipitation27%
Record high66° (1964)
Record low-7° (1991)
Fri, 3043° / 26°0.04
43 °
Ruby, Friday, 30 October
Climate normal for this date — 60-year average.
Average high43°
Average low26°
Average precipitation0.04 in
Chance of precipitation25%
Record high65° (1962)
Record low-9° (1991)
Sat, 3143° / 26°0.04
43 °
Ruby, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high43°
Average low26°
Average precipitation0.04 in
Chance of precipitation23%
Record high61° (2008)
Record low-5° (1996)
Sun, 0143° / 26°0.03
43 °
Ruby, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high43°
Average low26°
Average precipitation0.03 in
Chance of precipitation22%
Record high62° (2014)
Record low-4° (1991)
Mon, 0242° / 26°0.04
42 °
Ruby, Monday, 2 November
Climate normal for this date — 60-year average.
Average high42°
Average low26°
Average precipitation0.04 in
Chance of precipitation25%
Record high58° (1965)
Record low-14° (1991)
Tue, 0343° / 26°0.04
43 °
Ruby, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high43°
Average low26°
Average precipitation0.04 in
Chance of precipitation17%
Record high61° (1962)
Record low-6° (1991)
Wed, 0444° / 26°0.04
44 °
Ruby, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high44°
Average low26°
Average precipitation0.04 in
Chance of precipitation22%
Record high58° (1962)
Record low-10° (1973)
Thu, 0543° / 26°0.06
43 °
Ruby, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high43°
Average low26°
Average precipitation0.06 in
Chance of precipitation28%
Record high61° (2020)
Record low3° (2003)
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 Ruby, 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 Ruby, 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.