Monthly outlook for Bighorn, MT: average high 61.7°, average low 40.7°. That is 3.5° above the climate normal for October. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 3 November (75.7°), the coolest 26 October (31.2°).
61.7°/40.7°
Average high / low
+3.5°
Above normal
2 / 3
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
20 October – 29 October
59.4°
57.5°
+1.1°
30 October – 8 November
65.5°
51.2°
+7.9°
9 November – 18 November
at normal
46.4°
—
October records over 66 years
93°1 October 2011All-time high
-20°30 October 1991All-time low
Climate normals and records are computed from the nearest reference point — Hysham (14 mi).
Wed, 2171° / 39°0
71 °
Bighorn, Wednesday, 21 October
Clear. High 71°, low 39°.
Pressure30.09 inHg
Wind2.6 mph SW
Humidity58%
Visibility6.2 mi
Dew point43°
Thu, 2272° / 44°0
72 °
Bighorn, Thursday, 22 October
Clear. High 72°, low 44°.
Pressure29.88 inHg
Wind7.2 mph SW
Humidity51%
Visibility6.2 mi
Dew point47°
Fri, 2371° / 40°0.1
71 °
Bighorn, Friday, 23 October
Rain. High 71°, low 40°.
Pressure29.59 inHg
Wind5.1 mph W
Humidity52%
Visibility6.2 mi
Dew point48°
Sat, 2448° / 39°0.06
48 °
Bighorn, Saturday, 24 October
Light rain. High 48°, low 39°.
Pressure30.47 inHg
Wind4.6 mph NW
Humidity58%
Visibility6.2 mi
Dew point26°
Sun, 2554° / 32°0
54 °
Bighorn, Sunday, 25 October
Clear. High 54°, low 32°.
Pressure30.33 inHg
Wind13 mph N
Humidity51%
Visibility—
Dew point29°
Mon, 2642° / 31°0
42 °
Bighorn, Monday, 26 October
Partly cloudy. High 42°, low 31°.
Pressure30.62 inHg
Wind9.5 mph N
Humidity68%
Visibility—
Dew point29°
Tue, 2759° / 33°0
59 °
Bighorn, Tuesday, 27 October
Clear. High 59°, low 33°.
Pressure30.15 inHg
Wind17.3 mph N
Humidity46%
Visibility—
Dew point28°
Wed, 2852° / 39°0
52 °
Bighorn, Wednesday, 28 October
Overcast. High 52°, low 39°.
Pressure30.39 inHg
Wind8.3 mph N
Humidity42%
Visibility—
Dew point24°
Thu, 2958° / 38°0
58 °
Bighorn, Thursday, 29 October
Clear. High 58°, low 38°.
Pressure30.12 inHg
Wind7.2 mph SE
Humidity33%
Visibility—
Dew point22°
Fri, 3066° / 43°0
66 °
Bighorn, Friday, 30 October
Partly cloudy. High 66°, low 43°.
Pressure29.56 inHg
Wind19.2 mph W
Humidity31%
Visibility—
Dew point26°
Sat, 3156° / 38°0
56 °
Bighorn, Saturday, 31 October
Overcast. High 56°, low 38°.
Pressure29.65 inHg
Wind9.8 mph W
Humidity35%
Visibility—
Dew point22°
Sun, 0159° / 44°0
59 °
Bighorn, Sunday, 1 November
Overcast. High 59°, low 44°.
Pressure29.85 inHg
Wind8.9 mph NE
Humidity29%
Visibility—
Dew point23°
Mon, 0262° / 42°0
62 °
Bighorn, Monday, 2 November
Partly cloudy. High 62°, low 42°.
Pressure30.12 inHg
Wind8.6 mph S
Humidity34%
Visibility—
Dew point26°
Tue, 0376° / 53°0
76 °
Bighorn, Tuesday, 3 November
Partly cloudy. High 76°, low 53°.
Pressure30.00 inHg
Wind19.6 mph W
Humidity27%
Visibility—
Dew point33°
Wed, 0474° / 55°0
74 °
Bighorn, Wednesday, 4 November
Mostly clear. High 74°, low 55°.
Pressure30.00 inHg
Wind8.3 mph W
Humidity30%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 0552° / 33°0.03
52 °
Bighorn, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high52°
Average low33°
Average precipitation0.03 in
Chance of precipitation23%
Record high73° (2020)
Record low4° (1961)
Fri, 0650° / 31°0.03
50 °
Bighorn, Friday, 6 November
Climate normal for this date — 60-year average.
Average high50°
Average low31°
Average precipitation0.03 in
Chance of precipitation17%
Record high73° (2010)
Record low10° (1991)
Sat, 0749° / 31°0.02
49 °
Bighorn, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high49°
Average low31°
Average precipitation0.02 in
Chance of precipitation13%
Record high73° (1999)
Record low-2° (1991)
Sun, 0849° / 30°0.04
49 °
Bighorn, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high49°
Average low30°
Average precipitation0.04 in
Chance of precipitation22%
Record high77° (1999)
Record low3° (1966)
Mon, 0947° / 29°0.07
47 °
Bighorn, Monday, 9 November
Climate normal for this date — 60-year average.
Average high47°
Average low29°
Average precipitation0.07 in
Chance of precipitation22%
Record high69° (2016)
Record low-1° (1966)
Tue, 1046° / 27°0.05
46 °
Bighorn, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high46°
Average low27°
Average precipitation0.05 in
Chance of precipitation18%
Record high71° (2007)
Record low-19° (1986)
Wed, 1145° / 26°0.02
45 °
Bighorn, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high45°
Average low26°
Average precipitation0.02 in
Chance of precipitation23%
Record high71° (1990)
Record low-7° (2019)
Thu, 1247° / 27°0.02
47 °
Bighorn, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high47°
Average low27°
Average precipitation0.02 in
Chance of precipitation15%
Record high76° (1999)
Record low-16° (1986)
Fri, 1347° / 29°0.03
47 °
Bighorn, Friday, 13 November
Climate normal for this date — 60-year average.
Average high47°
Average low29°
Average precipitation0.03 in
Chance of precipitation17%
Record high71° (1990)
Record low-21° (1986)
Sat, 1447° / 28°0.02
47 °
Bighorn, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high47°
Average low28°
Average precipitation0.02 in
Chance of precipitation25%
Record high70° (1999)
Record low0° (2014)
Sun, 1547° / 28°0.01
47 °
Bighorn, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high47°
Average low28°
Average precipitation0.01 in
Chance of precipitation10%
Record high69° (2021)
Record low0° (2014)
Mon, 1648° / 29°0.02
48 °
Bighorn, Monday, 16 November
Climate normal for this date — 60-year average.
Average high48°
Average low29°
Average precipitation0.02 in
Chance of precipitation13%
Record high68° (2001)
Record low1° (1978)
Tue, 1746° / 28°0.02
46 °
Bighorn, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high46°
Average low28°
Average precipitation0.02 in
Chance of precipitation15%
Record high67° (1976)
Record low6° (1996)
Wed, 1846° / 27°0.04
46 °
Bighorn, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high46°
Average low27°
Average precipitation0.04 in
Chance of precipitation25%
Record high65° (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 Bighorn, 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 Bighorn, 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.