Monthly outlook for Harlowton, MT: average high 45.4°, average low 31.2°. That is 4.4° above the climate normal for November. Precipitation is expected on 0 days (about 0.1 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 15 November (56.1°), the coolest 27 November (25.4°).
45.4°/31.2°
Average high / low
+4.4°
Above normal
0 / 3
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 November – 24 November
45.4°
39.1°
+3.5°
25 November – 4 December
45.4°
34.6°
+5.9°
5 December – 14 December
at normal
32.6°
—
November records over 66 years
67.6°1 November 2025All-time high
-28.7°21 November 1977All-time low
Mon, 1656° / 37°0
56 °
Harlowton, Monday, 16 November
Overcast. High 56°, low 37°.
Pressure29.94 inHg
Wind3.7 mph W
Humidity40%
Visibility6.2 mi
Dew point25°
Tue, 1746° / 38°0.02
46 °
Harlowton, Tuesday, 17 November
Light rain. High 46°, low 38°.
Pressure29.85 inHg
Wind3.4 mph SE
Humidity60%
Visibility6.2 mi
Dew point30°
Wed, 1843° / 27°0
43 °
Harlowton, Wednesday, 18 November
Partly cloudy. High 43°, low 27°.
Pressure30.12 inHg
Wind10.3 mph W
Humidity65%
Visibility6.2 mi
Dew point24°
Thu, 1938° / 26°0
38 °
Harlowton, Thursday, 19 November
Light snow. High 38°, low 26°.
Pressure30.24 inHg
Wind3.5 mph SE
Humidity89%
Visibility—
Dew point30°
Fri, 2040° / 32°0.03
40 °
Harlowton, Friday, 20 November
Light snow. High 40°, low 32°.
Pressure30.06 inHg
Wind9.2 mph N
Humidity88%
Visibility—
Dew point31°
Sat, 2145° / 28°0
45 °
Harlowton, Saturday, 21 November
Mostly clear. High 45°, low 28°.
Pressure30.18 inHg
Wind9.8 mph W
Humidity55%
Visibility—
Dew point25°
Sun, 2235° / 27°0
35 °
Harlowton, Sunday, 22 November
Overcast. High 35°, low 27°.
Pressure30.24 inHg
Wind6.5 mph SE
Humidity85%
Visibility—
Dew point28°
Mon, 2348° / 28°0
48 °
Harlowton, Monday, 23 November
Overcast. High 48°, low 28°.
Pressure29.97 inHg
Wind13.6 mph W
Humidity47%
Visibility—
Dew point22°
Tue, 2446° / 30°0
46 °
Harlowton, Tuesday, 24 November
Overcast. High 46°, low 30°.
Pressure29.94 inHg
Wind9.9 mph W
Humidity46%
Visibility—
Dew point19°
Wed, 2546° / 35°0
46 °
Harlowton, Wednesday, 25 November
Overcast. High 46°, low 35°.
Pressure29.77 inHg
Wind21.1 mph W
Humidity55%
Visibility—
Dew point28°
Thu, 2642° / 32°0
42 °
Harlowton, Thursday, 26 November
Clear. High 42°, low 32°.
Pressure29.97 inHg
Wind26.5 mph W
Humidity39%
Visibility—
Dew point17°
Fri, 2738° / 25°0
38 °
Harlowton, Friday, 27 November
Mostly clear. High 38°, low 25°.
Pressure30.15 inHg
Wind19.6 mph W
Humidity47%
Visibility—
Dew point17°
Sat, 2844° / 28°0
44 °
Harlowton, Saturday, 28 November
Overcast. High 44°, low 28°.
Pressure29.94 inHg
Wind14.7 mph W
Humidity55%
Visibility—
Dew point21°
Sun, 2954° / 34°0
54 °
Harlowton, Sunday, 29 November
Overcast. High 54°, low 34°.
Pressure29.80 inHg
Wind15.3 mph W
Humidity50%
Visibility—
Dew point30°
Mon, 3049° / 35°0
49 °
Harlowton, Monday, 30 November
Overcast. High 49°, low 35°.
Pressure29.68 inHg
Wind3.8 mph SE
Humidity45%
Visibility—
Dew point27°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0135° / 19°0.04
35 °
Harlowton, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high35°
Average low19°
Average precipitation0.04 in
Chance of precipitation22%
Record high62° (2021)
Record low-26° (1985)
Wed, 0235° / 18°0.05
35 °
Harlowton, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high35°
Average low18°
Average precipitation0.05 in
Chance of precipitation27%
Record high60° (2021)
Record low-23° (1985)
Thu, 0335° / 18°0.04
35 °
Harlowton, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high35°
Average low18°
Average precipitation0.04 in
Chance of precipitation17%
Record high53° (2024)
Record low-12° (1978)
Fri, 0435° / 18°0.04
35 °
Harlowton, Friday, 4 December
Climate normal for this date — 60-year average.
Average high35°
Average low18°
Average precipitation0.04 in
Chance of precipitation15%
Record high54° (1979)
Record low-24° (1972)
Sat, 0532° / 16°0.02
32 °
Harlowton, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high32°
Average low16°
Average precipitation0.02 in
Chance of precipitation23%
Record high56° (2023)
Record low-28° (2013)
Sun, 0632° / 15°0.04
32 °
Harlowton, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high32°
Average low15°
Average precipitation0.04 in
Chance of precipitation17%
Record high52° (1987)
Record low-37° (1972)
Mon, 0732° / 15°0.02
32 °
Harlowton, Monday, 7 December
Climate normal for this date — 60-year average.
Average high32°
Average low15°
Average precipitation0.02 in
Chance of precipitation15%
Record high57° (2024)
Record low-28° (2013)
Tue, 0832° / 15°0.01
32 °
Harlowton, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high32°
Average low15°
Average precipitation0.01 in
Chance of precipitation8%
Record high53° (2020)
Record low-35° (1972)
Wed, 0933° / 17°0.02
33 °
Harlowton, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high33°
Average low17°
Average precipitation0.02 in
Chance of precipitation12%
Record high55° (1990)
Record low-23° (2009)
Thu, 1034° / 18°0.02
34 °
Harlowton, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high34°
Average low18°
Average precipitation0.02 in
Chance of precipitation18%
Record high56° (2025)
Record low-30° (1961)
Fri, 1134° / 17°0.02
34 °
Harlowton, Friday, 11 December
Climate normal for this date — 60-year average.
Average high34°
Average low17°
Average precipitation0.02 in
Chance of precipitation8%
Record high56° (2025)
Record low-31° (1961)
Sat, 1233° / 18°0.03
33 °
Harlowton, Saturday, 12 December
Climate normal for this date — 60-year average.
Average high33°
Average low18°
Average precipitation0.03 in
Chance of precipitation18%
Record high53° (2017)
Record low-21° (2000)
Sun, 1332° / 16°0.02
32 °
Harlowton, Sunday, 13 December
Climate normal for this date — 60-year average.
Average high32°
Average low16°
Average precipitation0.02 in
Chance of precipitation22%
Record high49° (1960)
Record low-14° (1963)
Mon, 1432° / 16°0.03
32 °
Harlowton, Monday, 14 December
Climate normal for this date — 60-year average.
Average high32°
Average low16°
Average precipitation0.03 in
Chance of precipitation13%
Record high46° (1969)
Record low-18° (2008)
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 Harlowton, 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 Harlowton, 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.