Monthly outlook for Teton, SD: average high 64.7°, average low 45.9°. That is 3.8° above the climate normal for October. Precipitation is expected on 3 days (about 0.4 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 23 October (83.7°), the coolest 26 October (34.6°).
64.7°/45.9°
Average high / low
+3.8°
Above normal
3 / 3
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
67.6°
59.9°
+4.3°
27 October – 5 November
59.9°
53.4°
+3.6°
6 November – 15 November
at normal
47.5°
—
October records over 66 years
94.5°3 October 2025All-time high
0.7°26 October 2020All-time low
Sun, 1870° / 42°0
70 °
Teton, Sunday, 18 October
Clear. High 70°, low 42°.
Pressure30.00 inHg
Wind8.7 mph N
Humidity59%
Visibility6.2 mi
Dew point46°
Mon, 1964° / 46°0
64 °
Teton, Monday, 19 October
Clear. High 64°, low 46°.
Pressure30.18 inHg
Wind6.5 mph E
Humidity67%
Visibility6.2 mi
Dew point45°
Tue, 2072° / 47°0
72 °
Teton, Tuesday, 20 October
Clear. High 72°, low 47°.
Pressure30.06 inHg
Wind7.9 mph SE
Humidity65%
Visibility6.2 mi
Dew point50°
Wed, 2168° / 51°0
68 °
Teton, Wednesday, 21 October
Clear. High 68°, low 51°.
Pressure30.12 inHg
Wind9.1 mph N
Humidity69%
Visibility—
Dew point52°
Thu, 2274° / 49°0
74 °
Teton, Thursday, 22 October
Overcast. High 74°, low 49°.
Pressure30.09 inHg
Wind15.4 mph SE
Humidity72%
Visibility—
Dew point55°
Fri, 2384° / 65°0.06
84 °
Teton, Friday, 23 October
Light rain. High 84°, low 65°.
Pressure29.50 inHg
Wind24.2 mph S
Humidity45%
Visibility—
Dew point55°
Sat, 2461° / 45°0
61 °
Teton, Saturday, 24 October
Clear. High 61°, low 45°.
Pressure30.00 inHg
Wind25.8 mph W
Humidity43%
Visibility—
Dew point31°
Sun, 2550° / 40°0
50 °
Teton, Sunday, 25 October
Partly cloudy. High 50°, low 40°.
Pressure30.33 inHg
Wind16.9 mph NW
Humidity33%
Visibility—
Dew point19°
Mon, 2657° / 35°0
57 °
Teton, Monday, 26 October
Overcast. High 57°, low 35°.
Pressure30.21 inHg
Wind21.1 mph SE
Humidity27%
Visibility—
Dew point16°
Tue, 2764° / 48°0
64 °
Teton, Tuesday, 27 October
Overcast. High 64°, low 48°.
Pressure29.80 inHg
Wind19 mph S
Humidity42%
Visibility—
Dew point35°
Wed, 2860° / 46°0.12
60 °
Teton, Wednesday, 28 October
Light rain. High 60°, low 46°.
Pressure29.56 inHg
Wind28 mph NW
Humidity55%
Visibility—
Dew point42°
Thu, 2969° / 43°0
69 °
Teton, Thursday, 29 October
Clear. High 69°, low 43°.
Pressure29.91 inHg
Wind12.7 mph SE
Humidity30%
Visibility—
Dew point27°
Fri, 3060° / 52°0
60 °
Teton, Friday, 30 October
Overcast. High 60°, low 52°.
Pressure29.53 inHg
Wind13.7 mph N
Humidity35%
Visibility—
Dew point32°
Sat, 3151° / 45°0.23
51 °
Teton, Saturday, 31 October
Light rain. High 51°, low 45°.
Pressure29.59 inHg
Wind21.8 mph NW
Humidity49%
Visibility—
Dew point29°
Sun, 0155° / 40°0
55 °
Teton, Sunday, 1 November
Clear. High 55°, low 40°.
Pressure30.00 inHg
Wind20.9 mph NW
Humidity32%
Visibility—
Dew point21°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0252° / 35°0.02
52 °
Teton, Monday, 2 November
Climate normal for this date — 60-year average.
Average high52°
Average low35°
Average precipitation0.02 in
Chance of precipitation13%
Record high78° (2022)
Record low8° (1991)
Tue, 0351° / 36°0.04
51 °
Teton, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.04 in
Chance of precipitation18%
Record high72° (1978)
Record low6° (1991)
Wed, 0452° / 34°0.01
52 °
Teton, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high52°
Average low34°
Average precipitation0.01 in
Chance of precipitation10%
Record high78° (1978)
Record low8° (1991)
Thu, 0552° / 34°0.04
52 °
Teton, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high52°
Average low34°
Average precipitation0.04 in
Chance of precipitation18%
Record high76° (2001)
Record low13° (2003)
Fri, 0652° / 33°0.03
52 °
Teton, Friday, 6 November
Climate normal for this date — 60-year average.
Average high52°
Average low33°
Average precipitation0.03 in
Chance of precipitation15%
Record high77° (2020)
Record low5° (2003)
Sat, 0751° / 33°0.04
51 °
Teton, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high51°
Average low33°
Average precipitation0.04 in
Chance of precipitation17%
Record high73° (2010)
Record low3° (1991)
Sun, 0851° / 33°0.07
51 °
Teton, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high51°
Average low33°
Average precipitation0.07 in
Chance of precipitation13%
Record high80° (1999)
Record low11° (1991)
Mon, 0947° / 32°0.04
47 °
Teton, Monday, 9 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.04 in
Chance of precipitation17%
Record high70° (2016)
Record low8° (2000)
Tue, 1046° / 29°0.06
46 °
Teton, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high46°
Average low29°
Average precipitation0.06 in
Chance of precipitation25%
Record high69° (1989)
Record low-1° (1986)
Wed, 1144° / 29°0.02
44 °
Teton, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high44°
Average low29°
Average precipitation0.02 in
Chance of precipitation17%
Record high68° (2005)
Record low-5° (1986)
Thu, 1246° / 29°0.05
46 °
Teton, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high46°
Average low29°
Average precipitation0.05 in
Chance of precipitation15%
Record high70° (2016)
Record low-3° (1986)
Fri, 1348° / 30°0.03
48 °
Teton, Friday, 13 November
Climate normal for this date — 60-year average.
Average high48°
Average low30°
Average precipitation0.03 in
Chance of precipitation20%
Record high73° (1990)
Record low-13° (1986)
Sat, 1446° / 31°0.02
46 °
Teton, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high46°
Average low31°
Average precipitation0.02 in
Chance of precipitation12%
Record high72° (2025)
Record low-2° (2014)
Sun, 1545° / 29°0.02
45 °
Teton, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high45°
Average low29°
Average precipitation0.02 in
Chance of precipitation17%
Record high65° (2001)
Record low6° (2014)
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 Teton, SD 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 Teton, SD 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.