Monthly outlook for Otter, MT: average high 56.5°, average low 39.2°. That is 1.2° below the climate normal for October. Precipitation is expected on 5 days (about 2.0 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 9 October (86.7°), the coolest 16 October (18.6°).
56.5°/39.2°
Average high / low
−1.2°
Below normal
5 / 4
Wet days / normal
2.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
56.9°
59°
-1.2°
18 October – 27 October
55.7°
57°
-0.7°
28 October – 6 November
at normal
50.3°
—
October records over 66 years
90.3°1 October 2011All-time high
-10.3°30 October 1991All-time low
Climate normals and records are computed from the nearest reference point — Sayle (10 mi).
Fri, 0987° / 48°0
87 °
Otter, Friday, 9 October
Overcast. High 87°, low 48°.
Pressure29.62 inHg
Wind4.3 mph S
Humidity17%
Visibility6.2 mi
Dew point28°
Sat, 1069° / 49°0
69 °
Otter, Saturday, 10 October
Partly cloudy. High 69°, low 49°.
Pressure29.59 inHg
Wind9.2 mph N
Humidity31%
Visibility6.2 mi
Dew point34°
Sun, 1148° / 42°0.15
48 °
Otter, Sunday, 11 October
Rain. High 48°, low 42°.
Pressure30.00 inHg
Wind7.6 mph N
Humidity77%
Visibility6.2 mi
Dew point38°
Mon, 1244° / 39°0.33
44 °
Otter, Monday, 12 October
Rain. High 44°, low 39°.
Pressure30.00 inHg
Wind8.4 mph N
Humidity82%
Visibility6.2 mi
Dew point38°
Tue, 1350° / 35°0
50 °
Otter, Tuesday, 13 October
Overcast. High 50°, low 35°.
Pressure30.06 inHg
Wind5.5 mph E
Humidity77%
Visibility—
Dew point38°
Wed, 1465° / 48°0
65 °
Otter, Wednesday, 14 October
Overcast. High 65°, low 48°.
Pressure29.47 inHg
Wind18.3 mph N
Humidity44%
Visibility—
Dew point40°
Thu, 1548° / 32°1.28
48 °
Otter, Thursday, 15 October
Snow. High 48°, low 32°.
Pressure30.18 inHg
Wind23.6 mph NW
Humidity100%
Visibility—
Dew point33°
Fri, 1634° / 19°0.01
34 °
Otter, Friday, 16 October
Light snow. High 34°, low 19°.
Pressure30.71 inHg
Wind12.5 mph NW
Humidity98%
Visibility—
Dew point29°
Sat, 1746° / 27°0
46 °
Otter, Saturday, 17 October
Overcast. High 46°, low 27°.
Pressure30.30 inHg
Wind20.1 mph S
Humidity94%
Visibility—
Dew point37°
Sun, 1852° / 41°0.07
52 °
Otter, Sunday, 18 October
Light rain. High 52°, low 41°.
Pressure30.00 inHg
Wind10.4 mph W
Humidity57%
Visibility—
Dew point33°
Mon, 1964° / 41°0
64 °
Otter, Monday, 19 October
Clear. High 64°, low 41°.
Pressure30.03 inHg
Wind17.6 mph NW
Humidity30%
Visibility—
Dew point27°
Tue, 2064° / 45°0
64 °
Otter, Tuesday, 20 October
Mostly clear. High 64°, low 45°.
Pressure30.18 inHg
Wind10.6 mph NW
Humidity36%
Visibility—
Dew point31°
Wed, 2157° / 43°0
57 °
Otter, Wednesday, 21 October
Partly cloudy. High 57°, low 43°.
Pressure30.09 inHg
Wind27.9 mph NW
Humidity33%
Visibility—
Dew point27°
Thu, 2252° / 37°0
52 °
Otter, Thursday, 22 October
Partly cloudy. High 52°, low 37°.
Pressure30.18 inHg
Wind18.1 mph W
Humidity29%
Visibility—
Dew point16°
Fri, 2346° / 35°0.16
46 °
Otter, Friday, 23 October
Snow. High 46°, low 35°.
Pressure29.68 inHg
Wind16.4 mph NW
Humidity67%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2456° / 35°0.03
56 °
Otter, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high56°
Average low35°
Average precipitation0.03 in
Chance of precipitation22%
Record high75° (1965)
Record low15° (2020)
Sun, 2557° / 35°0.02
57 °
Otter, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high57°
Average low35°
Average precipitation0.02 in
Chance of precipitation15%
Record high75° (2014)
Record low-6° (2020)
Mon, 2655° / 34°0.05
55 °
Otter, Monday, 26 October
Climate normal for this date — 60-year average.
Average high55°
Average low34°
Average precipitation0.05 in
Chance of precipitation22%
Record high74° (1960)
Record low-8° (2020)
Tue, 2754° / 33°0.04
54 °
Otter, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high54°
Average low33°
Average precipitation0.04 in
Chance of precipitation22%
Record high75° (2016)
Record low3° (2023)
Wed, 2853° / 33°0.05
53 °
Otter, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high53°
Average low33°
Average precipitation0.05 in
Chance of precipitation27%
Record high77° (1990)
Record low3° (2023)
Thu, 2951° / 32°0.08
51 °
Otter, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high51°
Average low32°
Average precipitation0.08 in
Chance of precipitation33%
Record high75° (1968)
Record low-3° (1991)
Fri, 3050° / 31°0.03
50 °
Otter, Friday, 30 October
Climate normal for this date — 60-year average.
Average high50°
Average low31°
Average precipitation0.03 in
Chance of precipitation17%
Record high72° (1965)
Record low-10° (1991)
Sat, 3150° / 31°0.02
50 °
Otter, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high50°
Average low31°
Average precipitation0.02 in
Chance of precipitation17%
Record high76° (1999)
Record low6° (1991)
Sun, 0150° / 31°0.03
50 °
Otter, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high50°
Average low31°
Average precipitation0.03 in
Chance of precipitation17%
Record high73° (1965)
Record low2° (1991)
Mon, 0249° / 30°0.03
49 °
Otter, Monday, 2 November
Climate normal for this date — 60-year average.
Average high49°
Average low30°
Average precipitation0.03 in
Chance of precipitation18%
Record high74° (1965)
Record low-10° (1995)
Tue, 0349° / 30°0.02
49 °
Otter, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high49°
Average low30°
Average precipitation0.02 in
Chance of precipitation17%
Record high68° (1975)
Record low-9° (1995)
Wed, 0451° / 30°0.02
51 °
Otter, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high51°
Average low30°
Average precipitation0.02 in
Chance of precipitation17%
Record high71° (1965)
Record low6° (1995)
Thu, 0550° / 31°0.03
50 °
Otter, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high50°
Average low31°
Average precipitation0.03 in
Chance of precipitation22%
Record high71° (1975)
Record low7° (1961)
Fri, 0649° / 29°0.03
49 °
Otter, Friday, 6 November
Climate normal for this date — 60-year average.
Average high49°
Average low29°
Average precipitation0.03 in
Chance of precipitation20%
Record high73° (1980)
Record low7° (1991)
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 Otter, 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 Otter, 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.