Monthly outlook for West Thumb, WY: average high 40.2°, average low 26.6°. That is 3.7° above the climate normal for November. Precipitation is expected on 7 days (about 1.5 inches), against a normal of 7 days and 1.5 inches. The warmest day looks like 8 November (49.4°), the coolest 16 November (13.6°).
40.2°/26.6°
Average high / low
+3.7°
Above normal
7 / 7
Wet days / normal
1.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
1 November – 10 November
41.1°
34.6°
+3.6°
11 November – 20 November
38.8°
30.9°
+4.4°
21 November – 30 November
at normal
25.7°
—
November records over 66 years
53.8°15 November 1999All-time high
-14.3°25 November 1993All-time low
Climate normals and records are computed from the nearest reference point — Lake (13 mi).
Mon, 0235° / 24°0.06
35 °
West Thumb, Monday, 2 November
Light snow. High 35°, low 24°.
Pressure30.21 inHg
Wind9.9 mph NW
Humidity92%
Visibility6.2 mi
Dew point26°
Tue, 0340° / 24°0
40 °
West Thumb, Tuesday, 3 November
Overcast. High 40°, low 24°.
Pressure30.18 inHg
Wind2.9 mph S
Humidity70%
Visibility6.2 mi
Dew point23°
Wed, 0443° / 27°0
43 °
West Thumb, Wednesday, 4 November
Overcast. High 43°, low 27°.
Pressure29.91 inHg
Wind0.7 mph E
Humidity58%
Visibility6.2 mi
Dew point19°
Thu, 0537° / 25°0
37 °
West Thumb, Thursday, 5 November
Overcast. High 37°, low 25°.
Pressure30.09 inHg
Wind9.7 mph SW
Humidity78%
Visibility—
Dew point28°
Fri, 0633° / 24°0.28
33 °
West Thumb, Friday, 6 November
Snow. High 33°, low 24°.
Pressure30.09 inHg
Wind16.2 mph SW
Humidity88%
Visibility—
Dew point29°
Sat, 0746° / 25°0
46 °
West Thumb, Saturday, 7 November
Overcast. High 46°, low 25°.
Pressure30.18 inHg
Wind8.2 mph SW
Humidity47%
Visibility—
Dew point22°
Sun, 0849° / 30°0
49 °
West Thumb, Sunday, 8 November
Partly cloudy. High 49°, low 30°.
Pressure30.09 inHg
Wind10.4 mph SW
Humidity51%
Visibility—
Dew point28°
Mon, 0948° / 33°0
48 °
West Thumb, Monday, 9 November
Overcast. High 48°, low 33°.
Pressure30.03 inHg
Wind9.1 mph SW
Humidity39%
Visibility—
Dew point22°
Tue, 1045° / 31°0
45 °
West Thumb, Tuesday, 10 November
Overcast. High 45°, low 31°.
Pressure30.21 inHg
Wind14.3 mph SW
Humidity44%
Visibility—
Dew point22°
Wed, 1148° / 31°0
48 °
West Thumb, Wednesday, 11 November
Overcast. High 48°, low 31°.
Pressure30.24 inHg
Wind9.8 mph SW
Humidity41%
Visibility—
Dew point21°
Thu, 1249° / 31°0
49 °
West Thumb, Thursday, 12 November
Overcast. High 49°, low 31°.
Pressure29.91 inHg
Wind11.2 mph SW
Humidity39%
Visibility—
Dew point20°
Fri, 1342° / 29°0.08
42 °
West Thumb, Friday, 13 November
Light snow. High 42°, low 29°.
Pressure29.50 inHg
Wind16.1 mph SW
Humidity63%
Visibility—
Dew point29°
Sat, 1437° / 26°0.23
37 °
West Thumb, Saturday, 14 November
Snow. High 37°, low 26°.
Pressure29.59 inHg
Wind11.5 mph SW
Humidity64%
Visibility—
Dew point24°
Sun, 1530° / 22°0.31
30 °
West Thumb, Sunday, 15 November
Snow. High 30°, low 22°.
Pressure29.62 inHg
Wind18.3 mph SW
Humidity86%
Visibility—
Dew point25°
Mon, 1627° / 14°0.11
27 °
West Thumb, Monday, 16 November
Light snow. High 27°, low 14°.
Pressure29.94 inHg
Wind12.9 mph W
Humidity86%
Visibility—
Dew point21°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 1730° / 19°0.1
30 °
West Thumb, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high30°
Average low19°
Average precipitation0.1 in
Chance of precipitation53%
Record high49° (1999)
Record low2° (1968)
Wed, 1829° / 19°0.11
29 °
West Thumb, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high29°
Average low19°
Average precipitation0.11 in
Chance of precipitation45%
Record high42° (2008)
Record low-4° (2022)
Thu, 1929° / 19°0.08
29 °
West Thumb, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high29°
Average low19°
Average precipitation0.08 in
Chance of precipitation45%
Record high39° (2008)
Record low-1° (1985)
Fri, 2030° / 17°0.11
30 °
West Thumb, Friday, 20 November
Climate normal for this date — 60-year average.
Average high30°
Average low17°
Average precipitation0.11 in
Chance of precipitation43%
Record high42° (1989)
Record low-6° (1977)
Sat, 2129° / 17°0.09
29 °
West Thumb, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high29°
Average low17°
Average precipitation0.09 in
Chance of precipitation47%
Record high39° (1974)
Record low-4° (1977)
Sun, 2228° / 17°0.12
28 °
West Thumb, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high28°
Average low17°
Average precipitation0.12 in
Chance of precipitation50%
Record high40° (2024)
Record low-3° (1994)
Mon, 2327° / 15°0.09
27 °
West Thumb, Monday, 23 November
Climate normal for this date — 60-year average.
Average high27°
Average low15°
Average precipitation0.09 in
Chance of precipitation48%
Record high41° (2017)
Record low-8° (2003)
Tue, 2426° / 15°0.12
26 °
West Thumb, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high26°
Average low15°
Average precipitation0.12 in
Chance of precipitation50%
Record high38° (2017)
Record low-6° (1993)
Wed, 2526° / 14°0.14
26 °
West Thumb, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high26°
Average low14°
Average precipitation0.14 in
Chance of precipitation50%
Record high38° (1960)
Record low-14° (1993)
Thu, 2624° / 13°0.11
24 °
West Thumb, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high24°
Average low13°
Average precipitation0.11 in
Chance of precipitation47%
Record high43° (2017)
Record low-8° (1993)
Fri, 2724° / 12°0.07
24 °
West Thumb, Friday, 27 November
Climate normal for this date — 60-year average.
Average high24°
Average low12°
Average precipitation0.07 in
Chance of precipitation42%
Record high38° (1998)
Record low-14° (1976)
Sat, 2825° / 13°0.08
25 °
West Thumb, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high25°
Average low13°
Average precipitation0.08 in
Chance of precipitation47%
Record high36° (1966)
Record low-3° (1976)
Sun, 2925° / 13°0.07
25 °
West Thumb, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high25°
Average low13°
Average precipitation0.07 in
Chance of precipitation45%
Record high40° (1999)
Record low-5° (2006)
Mon, 3024° / 13°0.1
24 °
West Thumb, Monday, 30 November
Climate normal for this date — 60-year average.
Average high24°
Average low13°
Average precipitation0.1 in
Chance of precipitation43%
Record high41° (1999)
Record low-8° (1975)
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 Thumb, WY 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 Thumb, WY 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.