Monthly outlook for De Smet, MT: average high 50.2°, average low 32.1°. That is 3.5° above the climate normal for October. Precipitation is expected on 3 days (about 1.3 inches), against a normal of 6 days and 1.2 inches. The warmest day looks like 22 October (66.1°), the coolest 28 October (21.5°).
50.2°/32.1°
Average high / low
+3.5°
Above normal
3 / 6
Wet days / normal
1.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
21 October – 30 October
51.2°
45.7°
+3.1°
31 October – 9 November
48.5°
40.1°
+4.7°
10 November – 19 November
at normal
36.1°
—
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).
Thu, 2266° / 38°0
66 °
De Smet, Thursday, 22 October
Light rain. High 66°, low 38°.
Pressure29.88 inHg
Wind1.9 mph S
Humidity55%
Visibility6.2 mi
Dew point41°
Fri, 2348° / 43°0.7
48 °
De Smet, Friday, 23 October
Rain. High 48°, low 43°.
Pressure29.88 inHg
Wind5 mph W
Humidity96%
Visibility2.3 mi
Dew point46°
Sat, 2451° / 34°0
51 °
De Smet, Saturday, 24 October
Overcast. High 51°, low 34°.
Pressure30.30 inHg
Wind4.2 mph S
Humidity65%
Visibility6.2 mi
Dew point33°
Sun, 2555° / 35°0
55 °
De Smet, Sunday, 25 October
Mostly clear. High 55°, low 35°.
Pressure30.24 inHg
Wind2.8 mph N
Humidity59%
Visibility—
Dew point32°
Mon, 2652° / 33°0.02
52 °
De Smet, Monday, 26 October
Snow. High 52°, low 33°.
Pressure30.18 inHg
Wind2.2 mph S
Humidity64%
Visibility—
Dew point31°
Tue, 2737° / 24°0.02
37 °
De Smet, Tuesday, 27 October
Light snow. High 37°, low 24°.
Pressure30.36 inHg
Wind2.3 mph N
Humidity82%
Visibility—
Dew point29°
Wed, 2842° / 21°0
42 °
De Smet, Wednesday, 28 October
Overcast. High 42°, low 21°.
Pressure30.50 inHg
Wind2.8 mph E
Humidity83%
Visibility—
Dew point29°
Thu, 2945° / 24°0
45 °
De Smet, Thursday, 29 October
Overcast. High 45°, low 24°.
Pressure30.27 inHg
Wind3.2 mph E
Humidity87%
Visibility—
Dew point33°
Fri, 3052° / 27°0
52 °
De Smet, Friday, 30 October
Overcast. High 52°, low 27°.
Pressure29.94 inHg
Wind3.4 mph SE
Humidity80%
Visibility—
Dew point36°
Sat, 3154° / 34°0
54 °
De Smet, Saturday, 31 October
Overcast. High 54°, low 34°.
Pressure29.80 inHg
Wind3.6 mph N
Humidity77%
Visibility—
Dew point38°
Sun, 0157° / 43°0.02
57 °
De Smet, Sunday, 1 November
Light rain. High 57°, low 43°.
Pressure29.85 inHg
Wind2.8 mph SE
Humidity77%
Visibility—
Dew point43°
Mon, 0251° / 40°0.2
51 °
De Smet, Monday, 2 November
Rain. High 51°, low 40°.
Pressure29.71 inHg
Wind3.9 mph SE
Humidity76%
Visibility—
Dew point40°
Tue, 0344° / 28°0.31
44 °
De Smet, Tuesday, 3 November
Snow. High 44°, low 28°.
Pressure30.15 inHg
Wind6.6 mph N
Humidity85%
Visibility—
Dew point34°
Wed, 0441° / 29°0
41 °
De Smet, Wednesday, 4 November
Overcast. High 41°, low 29°.
Pressure30.30 inHg
Wind2.3 mph SE
Humidity62%
Visibility—
Dew point25°
Thu, 0544° / 24°0
44 °
De Smet, Thursday, 5 November
Mostly clear. High 44°, low 24°.
Pressure30.42 inHg
Wind3 mph N
Humidity63%
Visibility—
Dew point26°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Thu, 1934° / 21°0.07
34 °
De Smet, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high34°
Average low21°
Average precipitation0.07 in
Chance of precipitation38%
Record high47° (1989)
Record low-3° (1975)
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.