Monthly outlook for Diamond City, MT: average high 29.4°, average low 16.1°. That is 3.1° below the climate normal for November. Precipitation is expected on 6 days (about 1.1 inches), against a normal of 5 days and 0.8 inches. The warmest day looks like 12 November (54.6°), the coolest 25 November (-8.2°).
29.4°/16.1°
Average high / low
−3.1°
Below normal
6 / 5
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 November – 21 November
38.5°
37°
+0.8°
22 November – 1 December
14.4°
30.9°
-9.2°
2 December – 11 December
at normal
27.8°
—
November records over 66 years
65.5°1 November 2025All-time high
-21.1°23 November 1985All-time low
Climate normals and records are computed from the nearest reference point — Fort Logan (13 mi).
Fri, 1352° / 38°0
52 °
Diamond City, Friday, 13 November
Overcast. High 52°, low 38°.
Pressure29.65 inHg
Wind11.1 mph S
Humidity39%
Visibility6.2 mi
Dew point21°
Sat, 1450° / 37°0
50 °
Diamond City, Saturday, 14 November
Mostly clear. High 50°, low 37°.
Pressure29.71 inHg
Wind8.5 mph SW
Humidity52%
Visibility6.2 mi
Dew point31°
Sun, 1547° / 36°0
47 °
Diamond City, Sunday, 15 November
Partly cloudy. High 47°, low 36°.
Pressure29.94 inHg
Wind11.5 mph S
Humidity55%
Visibility6.2 mi
Dew point23°
Mon, 1646° / 34°0.1
46 °
Diamond City, Monday, 16 November
Snow. High 46°, low 34°.
Pressure29.85 inHg
Wind7.8 mph S
Humidity55%
Visibility6.2 mi
Dew point23°
Tue, 1733° / 27°0.46
33 °
Diamond City, Tuesday, 17 November
Snow. High 33°, low 27°.
Pressure30.03 inHg
Wind10.5 mph NE
Humidity95%
Visibility—
Dew point30°
Wed, 1830° / 20°0.07
30 °
Diamond City, Wednesday, 18 November
Snow. High 30°, low 20°.
Pressure29.97 inHg
Wind7.3 mph S
Humidity90%
Visibility—
Dew point25°
Thu, 1925° / 20°0.29
25 °
Diamond City, Thursday, 19 November
Snow. High 25°, low 20°.
Pressure30.09 inHg
Wind6.4 mph N
Humidity95%
Visibility—
Dew point23°
Fri, 2025° / 12°0.04
25 °
Diamond City, Friday, 20 November
Light snow. High 25°, low 12°.
Pressure30.24 inHg
Wind5.7 mph N
Humidity90%
Visibility—
Dew point21°
Sat, 2122° / 5°0
22 °
Diamond City, Saturday, 21 November
Overcast. High 22°, low 5°.
Pressure30.30 inHg
Wind7 mph N
Humidity84%
Visibility—
Dew point15°
Sun, 2219° / 5°0
19 °
Diamond City, Sunday, 22 November
Overcast. High 19°, low 5°.
Pressure30.18 inHg
Wind7.6 mph S
Humidity90%
Visibility—
Dew point12°
Mon, 2319° / 5°0.13
19 °
Diamond City, Monday, 23 November
Snow. High 19°, low 5°.
Pressure30.03 inHg
Wind9.9 mph NW
Humidity95%
Visibility—
Dew point16°
Tue, 249° / -8°0.01
9 °
Diamond City, Tuesday, 24 November
Light snow. High 9°, low -8°.
Pressure30.53 inHg
Wind7.3 mph NW
Humidity79%
Visibility—
Dew point2°
Wed, 258° / -8°0
8 °
Diamond City, Wednesday, 25 November
Overcast. High 8°, low -8°.
Pressure30.68 inHg
Wind6.9 mph S
Humidity79%
Visibility—
Dew point-2°
Thu, 2614° / -1°0
14 °
Diamond City, Thursday, 26 November
Overcast. High 14°, low -1°.
Pressure30.59 inHg
Wind7.6 mph S
Humidity76%
Visibility—
Dew point2°
Fri, 2718° / 2°0
18 °
Diamond City, Friday, 27 November
Overcast. High 18°, low 2°.
Pressure30.33 inHg
Wind7.5 mph S
Humidity73%
Visibility—
Dew point6°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2830° / 16°0.05
30 °
Diamond City, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high30°
Average low16°
Average precipitation0.05 in
Chance of precipitation33%
Record high55° (2021)
Record low-13° (1985)
Sun, 2929° / 13°0.04
29 °
Diamond City, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high29°
Average low13°
Average precipitation0.04 in
Chance of precipitation35%
Record high48° (2021)
Record low-16° (2006)
Mon, 3029° / 14°0.04
29 °
Diamond City, Monday, 30 November
Climate normal for this date — 60-year average.
Average high29°
Average low14°
Average precipitation0.04 in
Chance of precipitation23%
Record high46° (2021)
Record low-18° (1985)
Tue, 0130° / 15°0.04
30 °
Diamond City, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high30°
Average low15°
Average precipitation0.04 in
Chance of precipitation30%
Record high58° (2021)
Record low-25° (1985)
Wed, 0231° / 14°0.08
31 °
Diamond City, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high31°
Average low14°
Average precipitation0.08 in
Chance of precipitation38%
Record high55° (2021)
Record low-19° (1985)
Thu, 0330° / 15°0.04
30 °
Diamond City, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high30°
Average low15°
Average precipitation0.04 in
Chance of precipitation30%
Record high50° (2024)
Record low-10° (1972)
Fri, 0429° / 14°0.04
29 °
Diamond City, Friday, 4 December
Climate normal for this date — 60-year average.
Average high29°
Average low14°
Average precipitation0.04 in
Chance of precipitation27%
Record high48° (2024)
Record low-20° (1972)
Sat, 0528° / 13°0.05
28 °
Diamond City, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high28°
Average low13°
Average precipitation0.05 in
Chance of precipitation32%
Record high51° (2023)
Record low-21° (2013)
Sun, 0627° / 11°0.05
27 °
Diamond City, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high27°
Average low11°
Average precipitation0.05 in
Chance of precipitation30%
Record high51° (2023)
Record low-29° (2013)
Mon, 0726° / 11°0.03
26 °
Diamond City, Monday, 7 December
Climate normal for this date — 60-year average.
Average high26°
Average low11°
Average precipitation0.03 in
Chance of precipitation23%
Record high53° (2024)
Record low-30° (2013)
Tue, 0825° / 9°0.02
25 °
Diamond City, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high25°
Average low9°
Average precipitation0.02 in
Chance of precipitation15%
Record high48° (2020)
Record low-30° (2009)
Wed, 0926° / 10°0.03
26 °
Diamond City, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high26°
Average low10°
Average precipitation0.03 in
Chance of precipitation28%
Record high45° (2025)
Record low-27° (2009)
Thu, 1028° / 13°0.04
28 °
Diamond City, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high28°
Average low13°
Average precipitation0.04 in
Chance of precipitation32%
Record high50° (2025)
Record low-29° (1961)
Fri, 1128° / 13°0.04
28 °
Diamond City, Friday, 11 December
Climate normal for this date — 60-year average.
Average high28°
Average low13°
Average precipitation0.04 in
Chance of precipitation20%
Record high53° (2025)
Record low-23° (1961)
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 Diamond City, 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 Diamond City, 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.