Monthly outlook for Bighorn, MT: average high 59.2°, average low 39°. That is 1.8° above the climate normal for October. Precipitation is expected on 2 days (about 0.1 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 22 October (71.9°), the coolest 28 October (26.2°).
59.2°/39°
Average high / low
+1.8°
Above normal
2 / 3
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
19 October – 28 October
59.8°
58.3°
+0.8°
29 October – 7 November
58.4°
51.7°
+3.7°
8 November – 17 November
at normal
46.7°
—
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).
Tue, 2069° / 40°0
69 °
Bighorn, Tuesday, 20 October
Partly cloudy. High 69°, low 40°.
Pressure30.03 inHg
Wind3.7 mph NW
Humidity47%
Visibility6.2 mi
Dew point41°
Wed, 2167° / 40°0
67 °
Bighorn, Wednesday, 21 October
Mostly clear. High 67°, low 40°.
Pressure30.12 inHg
Wind0.9 mph SE
Humidity63%
Visibility6.2 mi
Dew point45°
Thu, 2272° / 44°0
72 °
Bighorn, Thursday, 22 October
Clear. High 72°, low 44°.
Pressure29.91 inHg
Wind5.3 mph SW
Humidity52%
Visibility6.2 mi
Dew point47°
Fri, 2369° / 46°0.04
69 °
Bighorn, Friday, 23 October
Light rain. High 69°, low 46°.
Pressure29.53 inHg
Wind15.4 mph SW
Humidity66%
Visibility—
Dew point49°
Sat, 2454° / 42°0.06
54 °
Bighorn, Saturday, 24 October
Light rain. High 54°, low 42°.
Pressure30.15 inHg
Wind14.9 mph W
Humidity44%
Visibility—
Dew point29°
Sun, 2564° / 39°0
64 °
Bighorn, Sunday, 25 October
Partly cloudy. High 64°, low 39°.
Pressure30.06 inHg
Wind14.9 mph SW
Humidity28%
Visibility—
Dew point22°
Mon, 2646° / 34°0.02
46 °
Bighorn, Monday, 26 October
Snow. High 46°, low 34°.
Pressure30.42 inHg
Wind12.8 mph N
Humidity57%
Visibility—
Dew point24°
Tue, 2738° / 30°0
38 °
Bighorn, Tuesday, 27 October
Overcast. High 38°, low 30°.
Pressure30.65 inHg
Wind9.7 mph NE
Humidity49%
Visibility—
Dew point17°
Wed, 2848° / 26°0
48 °
Bighorn, Wednesday, 28 October
Clear. High 48°, low 26°.
Pressure30.30 inHg
Wind9.2 mph S
Humidity44%
Visibility—
Dew point19°
Thu, 2959° / 35°0
59 °
Bighorn, Thursday, 29 October
Partly cloudy. High 59°, low 35°.
Pressure29.88 inHg
Wind8.5 mph SW
Humidity30%
Visibility—
Dew point19°
Fri, 3063° / 45°0
63 °
Bighorn, Friday, 30 October
Overcast. High 63°, low 45°.
Pressure29.71 inHg
Wind7.7 mph SW
Humidity29%
Visibility—
Dew point25°
Sat, 3162° / 48°0
62 °
Bighorn, Saturday, 31 October
Overcast. High 62°, low 48°.
Pressure29.80 inHg
Wind7.9 mph SW
Humidity39%
Visibility—
Dew point33°
Sun, 0163° / 45°0
63 °
Bighorn, Sunday, 1 November
Overcast. High 63°, low 45°.
Pressure29.77 inHg
Wind18.9 mph N
Humidity39%
Visibility—
Dew point32°
Mon, 0248° / 37°0.02
48 °
Bighorn, Monday, 2 November
Light rain. High 48°, low 37°.
Pressure30.15 inHg
Wind24.5 mph NW
Humidity44%
Visibility—
Dew point26°
Tue, 0355° / 34°0
55 °
Bighorn, Tuesday, 3 November
Clear. High 55°, low 34°.
Pressure30.21 inHg
Wind6 mph SE
Humidity45%
Visibility—
Dew point26°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0453° / 33°0.03
53 °
Bighorn, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high53°
Average low33°
Average precipitation0.03 in
Chance of precipitation15%
Record high71° (1983)
Record low10° (1995)
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)
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.