Monthly outlook for De Smet, MT: average high 57.3°, average low 37°. That is 7° above the climate normal for October. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 6 days and 1.2 inches. The warmest day looks like 21 October (64°), the coolest 26 October (27.5°).
57.3°/37°
Average high / low
+7°
Above normal
2 / 6
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
20 October – 29 October
57.3°
46.6°
+5.9°
30 October – 8 November
57.2°
40.5°
+9.3°
9 November – 18 November
at normal
36.5°
—
October records over 66 years
78.4°1 October 1992All-time high
-12.5°29 October 2019All-time low
Climate normals and records are computed from the nearest reference point — Evaro (10 mi).
Wed, 2164° / 36°0
64 °
De Smet, Wednesday, 21 October
Mostly clear. High 64°, low 36°.
Pressure30.03 inHg
Wind1.5 mph S
Humidity53%
Visibility6.2 mi
Dew point39°
Thu, 2262° / 44°0.05
62 °
De Smet, Thursday, 22 October
Light rain. High 62°, low 44°.
Pressure29.91 inHg
Wind1.6 mph S
Humidity59%
Visibility6.2 mi
Dew point43°
Fri, 2351° / 40°0.03
51 °
De Smet, Friday, 23 October
Light rain. High 51°, low 40°.
Pressure30.06 inHg
Wind7.5 mph NW
Humidity70%
Visibility6.2 mi
Dew point40°
Sat, 2452° / 34°0.01
52 °
De Smet, Saturday, 24 October
Light rain. High 52°, low 34°.
Pressure30.36 inHg
Wind2.6 mph S
Humidity62%
Visibility—
Dew point31°
Sun, 2556° / 35°0
56 °
De Smet, Sunday, 25 October
Clear. High 56°, low 35°.
Pressure30.27 inHg
Wind5.7 mph N
Humidity54%
Visibility—
Dew point31°
Mon, 2652° / 27°0
52 °
De Smet, Monday, 26 October
Clear. High 52°, low 27°.
Pressure30.50 inHg
Wind3.4 mph SE
Humidity44%
Visibility—
Dew point22°
Tue, 2757° / 28°0
57 °
De Smet, Tuesday, 27 October
Partly cloudy. High 57°, low 28°.
Pressure30.39 inHg
Wind3.8 mph SE
Humidity29%
Visibility—
Dew point14°
Wed, 2858° / 32°0
58 °
De Smet, Wednesday, 28 October
Clear. High 58°, low 32°.
Pressure30.27 inHg
Wind3 mph N
Humidity29%
Visibility—
Dew point17°
Thu, 2959° / 33°0
59 °
De Smet, Thursday, 29 October
Mostly clear. High 59°, low 33°.
Pressure30.15 inHg
Wind3.5 mph SE
Humidity37%
Visibility—
Dew point23°
Fri, 3063° / 37°0
63 °
De Smet, Friday, 30 October
Overcast. High 63°, low 37°.
Pressure30.03 inHg
Wind3.6 mph SE
Humidity35%
Visibility—
Dew point25°
Sat, 3163° / 39°0
63 °
De Smet, Saturday, 31 October
Partly cloudy. High 63°, low 39°.
Pressure30.03 inHg
Wind2.8 mph SE
Humidity38%
Visibility—
Dew point28°
Sun, 0160° / 40°0.02
60 °
De Smet, Sunday, 1 November
Light rain. High 60°, low 40°.
Pressure29.85 inHg
Wind4.9 mph SE
Humidity47%
Visibility—
Dew point31°
Mon, 0256° / 43°0.02
56 °
De Smet, Monday, 2 November
Light rain. High 56°, low 43°.
Pressure29.83 inHg
Wind8.1 mph W
Humidity65%
Visibility—
Dew point41°
Tue, 0348° / 44°0.07
48 °
De Smet, Tuesday, 3 November
Light rain. High 48°, low 44°.
Pressure30.09 inHg
Wind4.6 mph SW
Humidity84%
Visibility—
Dew point42°
Wed, 0452° / 40°0
52 °
De Smet, Wednesday, 4 November
Overcast. High 52°, low 40°.
Pressure30.18 inHg
Wind4.9 mph W
Humidity75%
Visibility—
Dew point39°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 0540° / 27°0.09
40 °
De Smet, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high40°
Average low27°
Average precipitation0.09 in
Chance of precipitation45%
Record high58° (1980)
Record low-8° (2003)
Fri, 0640° / 25°0.1
40 °
De Smet, Friday, 6 November
Climate normal for this date — 60-year average.
Average high40°
Average low25°
Average precipitation0.1 in
Chance of precipitation47%
Record high58° (2012)
Record low-1° (2003)
Sat, 0739° / 25°0.11
39 °
De Smet, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high39°
Average low25°
Average precipitation0.11 in
Chance of precipitation50%
Record high53° (1978)
Record low2° (2003)
Sun, 0838° / 24°0.07
38 °
De Smet, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high38°
Average low24°
Average precipitation0.07 in
Chance of precipitation43%
Record high56° (2016)
Record low-1° (1994)
Mon, 0938° / 24°0.07
38 °
De Smet, Monday, 9 November
Climate normal for this date — 60-year average.
Average high38°
Average low24°
Average precipitation0.07 in
Chance of precipitation42%
Record high58° (2016)
Record low1° (2020)
Tue, 1037° / 23°0.06
37 °
De Smet, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high37°
Average low23°
Average precipitation0.06 in
Chance of precipitation40%
Record high55° (2016)
Record low-19° (1986)
Wed, 1137° / 21°0.07
37 °
De Smet, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high37°
Average low21°
Average precipitation0.07 in
Chance of precipitation35%
Record high56° (2016)
Record low-7° (2000)
Thu, 1237° / 23°0.08
37 °
De Smet, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high37°
Average low23°
Average precipitation0.08 in
Chance of precipitation43%
Record high58° (1999)
Record low-9° (1986)
Fri, 1337° / 24°0.09
37 °
De Smet, Friday, 13 November
Climate normal for this date — 60-year average.
Average high37°
Average low24°
Average precipitation0.09 in
Chance of precipitation45%
Record high55° (2025)
Record low1° (2000)
Sat, 1437° / 23°0.08
37 °
De Smet, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high37°
Average low23°
Average precipitation0.08 in
Chance of precipitation40%
Record high54° (1999)
Record low-2° (2000)
Sun, 1537° / 22°0.03
37 °
De Smet, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high37°
Average low22°
Average precipitation0.03 in
Chance of precipitation17%
Record high54° (2021)
Record low0° (2014)
Mon, 1636° / 23°0.08
36 °
De Smet, Monday, 16 November
Climate normal for this date — 60-year average.
Average high36°
Average low23°
Average precipitation0.08 in
Chance of precipitation45%
Record high52° (2025)
Record low-1° (1961)
Tue, 1735° / 22°0.07
35 °
De Smet, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high35°
Average low22°
Average precipitation0.07 in
Chance of precipitation48%
Record high52° (1976)
Record low-7° (1968)
Wed, 1835° / 21°0.09
35 °
De Smet, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high35°
Average low21°
Average precipitation0.09 in
Chance of precipitation47%
Record high53° (2008)
Record low-3° (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 De Smet, 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 De Smet, 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.