Monthly outlook for West Yellowstone, MT: average high 42.5°, average low 27.1°. That is 3.2° above the climate normal for October. Precipitation is expected on 2 days (about 1.0 inches), against a normal of 6 days and 1.2 inches. The warmest day looks like 30 October (50.2°), the coolest 3 November (21°).
42.5°/27.1°
Average high / low
+3.2°
Above normal
2 / 6
Wet days / normal
1.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
28 October – 6 November
43.7°
38°
+3.2°
7 November – 16 November
40.3°
33.7°
+3.7°
17 November – 26 November
at normal
28.8°
—
October records over 66 years
75.4°2 October 2010All-time high
-16.6°30 October 2019All-time low
Thu, 2947° / 25°0
47 °
West Yellowstone, Thursday, 29 October
Overcast. High 47°, low 25°.
Pressure30.06 inHg
Wind2.8 mph SW
Humidity62%
Visibility6.2 mi
Dew point24°
Fri, 3050° / 30°0
50 °
West Yellowstone, Friday, 30 October
Overcast. High 50°, low 30°.
Pressure29.91 inHg
Wind2.3 mph S
Humidity51%
Visibility6.2 mi
Dew point30°
Sat, 3144° / 31°0.01
44 °
West Yellowstone, Saturday, 31 October
Light rain. High 44°, low 31°.
Pressure30.03 inHg
Wind1 mph SE
Humidity82%
Visibility6.2 mi
Dew point37°
Sun, 0137° / 32°0.72
37 °
West Yellowstone, Sunday, 1 November
Snow. High 37°, low 32°.
Pressure29.83 inHg
Wind3.3 mph S
Humidity94%
Visibility—
Dew point34°
Mon, 0238° / 23°0
38 °
West Yellowstone, Monday, 2 November
Overcast. High 38°, low 23°.
Pressure30.24 inHg
Wind9 mph N
Humidity75%
Visibility—
Dew point29°
Tue, 0343° / 21°0
43 °
West Yellowstone, Tuesday, 3 November
Overcast. High 43°, low 21°.
Pressure30.33 inHg
Wind3.2 mph NE
Humidity49%
Visibility—
Dew point19°
Wed, 0448° / 30°0
48 °
West Yellowstone, Wednesday, 4 November
Overcast. High 48°, low 30°.
Pressure30.06 inHg
Wind3.2 mph NE
Humidity53%
Visibility—
Dew point26°
Thu, 0545° / 28°0
45 °
West Yellowstone, Thursday, 5 November
Overcast. High 45°, low 28°.
Pressure29.88 inHg
Wind6.6 mph SW
Humidity50%
Visibility—
Dew point23°
Fri, 0644° / 29°0
44 °
West Yellowstone, Friday, 6 November
Overcast. High 44°, low 29°.
Pressure30.00 inHg
Wind6.2 mph SW
Humidity55%
Visibility—
Dew point24°
Sat, 0748° / 29°0
48 °
West Yellowstone, Saturday, 7 November
Partly cloudy. High 48°, low 29°.
Pressure29.97 inHg
Wind11.7 mph SW
Humidity51%
Visibility—
Dew point26°
Sun, 0836° / 28°0.3
36 °
West Yellowstone, Sunday, 8 November
Snow. High 36°, low 28°.
Pressure30.03 inHg
Wind13.2 mph SW
Humidity90%
Visibility—
Dew point32°
Mon, 0933° / 22°0
33 °
West Yellowstone, Monday, 9 November
Overcast. High 33°, low 22°.
Pressure30.36 inHg
Wind3.9 mph SW
Humidity81%
Visibility—
Dew point27°
Tue, 1041° / 21°0
41 °
West Yellowstone, Tuesday, 10 November
Overcast. High 41°, low 21°.
Pressure30.18 inHg
Wind4.8 mph S
Humidity64%
Visibility—
Dew point25°
Wed, 1137° / 27°0
37 °
West Yellowstone, Wednesday, 11 November
Overcast. High 37°, low 27°.
Pressure30.06 inHg
Wind6.5 mph S
Humidity77%
Visibility—
Dew point29°
Thu, 1246° / 30°0
46 °
West Yellowstone, Thursday, 12 November
Overcast. High 46°, low 30°.
Pressure29.85 inHg
Wind7.5 mph SW
Humidity68%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 1333° / 17°0.09
33 °
West Yellowstone, Friday, 13 November
Climate normal for this date — 60-year average.
Average high33°
Average low17°
Average precipitation0.09 in
Chance of precipitation38%
Record high51° (2025)
Record low-10° (2014)
Sat, 1432° / 15°0.07
32 °
West Yellowstone, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high32°
Average low15°
Average precipitation0.07 in
Chance of precipitation33%
Record high52° (1999)
Record low-10° (2000)
Sun, 1532° / 13°0.03
32 °
West Yellowstone, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high32°
Average low13°
Average precipitation0.03 in
Chance of precipitation20%
Record high55° (1999)
Record low-9° (1964)
Mon, 1632° / 15°0.07
32 °
West Yellowstone, Monday, 16 November
Climate normal for this date — 60-year average.
Average high32°
Average low15°
Average precipitation0.07 in
Chance of precipitation37%
Record high50° (1999)
Record low-13° (2014)
Tue, 1731° / 16°0.07
31 °
West Yellowstone, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high31°
Average low16°
Average precipitation0.07 in
Chance of precipitation42%
Record high51° (1999)
Record low-4° (2014)
Wed, 1830° / 15°0.09
30 °
West Yellowstone, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high30°
Average low15°
Average precipitation0.09 in
Chance of precipitation42%
Record high42° (2025)
Record low-14° (2022)
Thu, 1930° / 15°0.06
30 °
West Yellowstone, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high30°
Average low15°
Average precipitation0.06 in
Chance of precipitation37%
Record high42° (2008)
Record low-9° (2022)
Fri, 2030° / 14°0.07
30 °
West Yellowstone, Friday, 20 November
Climate normal for this date — 60-year average.
Average high30°
Average low14°
Average precipitation0.07 in
Chance of precipitation35%
Record high44° (2025)
Record low-10° (2022)
Sat, 2130° / 12°0.06
30 °
West Yellowstone, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high30°
Average low12°
Average precipitation0.06 in
Chance of precipitation33%
Record high43° (2025)
Record low-11° (1977)
Sun, 2228° / 12°0.09
28 °
West Yellowstone, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high28°
Average low12°
Average precipitation0.09 in
Chance of precipitation42%
Record high42° (2024)
Record low-14° (2007)
Mon, 2328° / 10°0.07
28 °
West Yellowstone, Monday, 23 November
Climate normal for this date — 60-year average.
Average high28°
Average low10°
Average precipitation0.07 in
Chance of precipitation38%
Record high43° (2017)
Record low-16° (2003)
Tue, 2427° / 12°0.1
27 °
West Yellowstone, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high27°
Average low12°
Average precipitation0.1 in
Chance of precipitation47%
Record high40° (2017)
Record low-14° (1993)
Wed, 2527° / 11°0.11
27 °
West Yellowstone, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high27°
Average low11°
Average precipitation0.11 in
Chance of precipitation47%
Record high39° (1960)
Record low-20° (1993)
Thu, 2626° / 9°0.07
26 °
West Yellowstone, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high26°
Average low9°
Average precipitation0.07 in
Chance of precipitation40%
Record high46° (2017)
Record low-11° (1993)
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 West Yellowstone, 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 West Yellowstone, 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.