Monthly outlook for Sun Prairie, MT: average high 48.5°, average low 34.2°. That is 0.1° below the climate normal for October. Precipitation is expected on 4 days (about 0.6 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 7 November (62.6°), the coolest 26 October (25.4°).
48.5°/34.2°
Average high / low
−0.1°
Below normal
4 / 3
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
26 October – 4 November
44.5°
50.5°
-3.4°
5 November – 14 November
55.2°
45.2°
+5.6°
15 November – 24 November
at normal
41.6°
—
October records over 66 years
88.9°1 October 1992All-time high
-10.7°30 October 1991All-time low
Climate normals and records are computed from the nearest reference point — Ulm (8 mi).
Tue, 2749° / 32°0.15
49 °
Sun Prairie, Tuesday, 27 October
Snow. High 49°, low 32°.
Pressure29.83 inHg
Wind17.7 mph SW
Humidity56%
Visibility6.2 mi
Dew point30°
Wed, 2851° / 34°0
51 °
Sun Prairie, Wednesday, 28 October
Clear. High 51°, low 34°.
Pressure29.94 inHg
Wind13.7 mph SW
Humidity54%
Visibility6.2 mi
Dew point29°
Thu, 2941° / 30°0
41 °
Sun Prairie, Thursday, 29 October
Overcast. High 41°, low 30°.
Pressure30.27 inHg
Wind4 mph NE
Humidity89%
Visibility6.2 mi
Dew point30°
Fri, 3041° / 29°0.05
41 °
Sun Prairie, Friday, 30 October
Light snow. High 41°, low 29°.
Pressure30.15 inHg
Wind1.6 mph SE
Humidity90%
Visibility6.2 mi
Dew point30°
Sat, 3149° / 29°0.13
49 °
Sun Prairie, Saturday, 31 October
Rain. High 49°, low 29°.
Pressure30.03 inHg
Wind4.5 mph E
Humidity85%
Visibility—
Dew point33°
Sun, 0139° / 31°0.26
39 °
Sun Prairie, Sunday, 1 November
Snow. High 39°, low 31°.
Pressure30.09 inHg
Wind9 mph NW
Humidity88%
Visibility—
Dew point34°
Mon, 0243° / 35°0.02
43 °
Sun Prairie, Monday, 2 November
Light snow. High 43°, low 35°.
Pressure30.45 inHg
Wind14.3 mph NW
Humidity55%
Visibility—
Dew point24°
Tue, 0348° / 31°0
48 °
Sun Prairie, Tuesday, 3 November
Clear. High 48°, low 31°.
Pressure30.33 inHg
Wind8.9 mph S
Humidity52%
Visibility—
Dew point25°
Wed, 0443° / 31°0
43 °
Sun Prairie, Wednesday, 4 November
Clear. High 43°, low 31°.
Pressure30.42 inHg
Wind6.1 mph E
Humidity52%
Visibility—
Dew point22°
Thu, 0546° / 32°0
46 °
Sun Prairie, Thursday, 5 November
Mostly clear. High 46°, low 32°.
Pressure30.06 inHg
Wind6.1 mph E
Humidity54%
Visibility—
Dew point26°
Fri, 0657° / 39°0
57 °
Sun Prairie, Friday, 6 November
Overcast. High 57°, low 39°.
Pressure29.80 inHg
Wind13.5 mph SW
Humidity50%
Visibility—
Dew point30°
Sat, 0763° / 42°0
63 °
Sun Prairie, Saturday, 7 November
Overcast. High 63°, low 42°.
Pressure29.53 inHg
Wind21.7 mph W
Humidity47%
Visibility—
Dew point33°
Sun, 0855° / 44°0
55 °
Sun Prairie, Sunday, 8 November
Mostly clear. High 55°, low 44°.
Pressure29.62 inHg
Wind21.7 mph SW
Humidity52%
Visibility—
Dew point35°
Mon, 0955° / 44°0
55 °
Sun Prairie, Monday, 9 November
Clear. High 55°, low 44°.
Pressure29.85 inHg
Wind21.2 mph SW
Humidity47%
Visibility—
Dew point32°
Tue, 1055° / 39°0.03
55 °
Sun Prairie, Tuesday, 10 November
Light rain. High 55°, low 39°.
Pressure30.06 inHg
Wind20 mph W
Humidity47%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 1144° / 26°0.03
44 °
Sun Prairie, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high44°
Average low26°
Average precipitation0.03 in
Chance of precipitation23%
Record high66° (1990)
Record low-6° (2000)
Thu, 1245° / 27°0.02
45 °
Sun Prairie, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high45°
Average low27°
Average precipitation0.02 in
Chance of precipitation15%
Record high70° (1999)
Record low-17° (1986)
Fri, 1345° / 28°0.02
45 °
Sun Prairie, Friday, 13 November
Climate normal for this date — 60-year average.
Average high45°
Average low28°
Average precipitation0.02 in
Chance of precipitation12%
Record high69° (2025)
Record low-4° (1986)
Sat, 1445° / 29°0.02
45 °
Sun Prairie, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high45°
Average low29°
Average precipitation0.02 in
Chance of precipitation18%
Record high67° (1999)
Record low-3° (2014)
Sun, 1545° / 28°0.01
45 °
Sun Prairie, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high45°
Average low28°
Average precipitation0.01 in
Chance of precipitation10%
Record high65° (2021)
Record low-4° (2014)
Mon, 1645° / 29°0.02
45 °
Sun Prairie, Monday, 16 November
Climate normal for this date — 60-year average.
Average high45°
Average low29°
Average precipitation0.02 in
Chance of precipitation18%
Record high63° (2001)
Record low4° (1961)
Tue, 1743° / 27°0.04
43 °
Sun Prairie, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high43°
Average low27°
Average precipitation0.04 in
Chance of precipitation17%
Record high61° (1976)
Record low0° (2022)
Wed, 1842° / 27°0.04
42 °
Sun Prairie, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high42°
Average low27°
Average precipitation0.04 in
Chance of precipitation22%
Record high64° (2008)
Record low-9° (2022)
Thu, 1941° / 26°0.04
41 °
Sun Prairie, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high41°
Average low26°
Average precipitation0.04 in
Chance of precipitation17%
Record high59° (1989)
Record low-9° (1985)
Fri, 2040° / 26°0.02
40 °
Sun Prairie, Friday, 20 November
Climate normal for this date — 60-year average.
Average high40°
Average low26°
Average precipitation0.02 in
Chance of precipitation20%
Record high59° (2002)
Record low-14° (1996)
Sat, 2141° / 24°0.02
41 °
Sun Prairie, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high41°
Average low24°
Average precipitation0.02 in
Chance of precipitation12%
Record high60° (1974)
Record low-19° (1977)
Sun, 2239° / 25°0.03
39 °
Sun Prairie, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high39°
Average low25°
Average precipitation0.03 in
Chance of precipitation17%
Record high58° (2021)
Record low-12° (1996)
Mon, 2339° / 24°0.01
39 °
Sun Prairie, Monday, 23 November
Climate normal for this date — 60-year average.
Average high39°
Average low24°
Average precipitation0.01 in
Chance of precipitation15%
Record high63° (2017)
Record low-25° (1985)
Tue, 2440° / 25°0.03
40 °
Sun Prairie, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high40°
Average low25°
Average precipitation0.03 in
Chance of precipitation20%
Record high54° (1986)
Record low-21° (2010)
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 Sun Prairie, 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 Sun Prairie, 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.