Monthly outlook for Teton, SD: average high 64.5°, average low 45.1°. That is 4.3° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 22 October (78°), the coolest 31 October (34.7°).
64.5°/45.1°
Average high / low
+4.3°
Above normal
1 / 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
67.9°
59°
+5°
29 October – 7 November
58.7°
52.4°
+3.5°
8 November – 17 November
at normal
46.5°
—
October records over 66 years
94.5°3 October 2025All-time high
0.7°26 October 2020All-time low
Tue, 2074° / 45°0
74 °
Teton, Tuesday, 20 October
Clear. High 74°, low 45°.
Pressure30.09 inHg
Wind7.9 mph S
Humidity61%
Visibility6.2 mi
Dew point50°
Wed, 2170° / 49°0
70 °
Teton, Wednesday, 21 October
Clear. High 70°, low 49°.
Pressure30.21 inHg
Wind5.1 mph NE
Humidity74%
Visibility6.2 mi
Dew point53°
Thu, 2278° / 54°0
78 °
Teton, Thursday, 22 October
Mostly clear. High 78°, low 54°.
Pressure30.06 inHg
Wind9.7 mph SE
Humidity69%
Visibility6.2 mi
Dew point57°
Fri, 2378° / 62°0
78 °
Teton, Friday, 23 October
Partly cloudy. High 78°, low 62°.
Pressure29.74 inHg
Wind20.2 mph SE
Humidity53%
Visibility—
Dew point54°
Sat, 2469° / 50°0
69 °
Teton, Saturday, 24 October
Overcast. High 69°, low 50°.
Pressure30.00 inHg
Wind16.3 mph NW
Humidity74%
Visibility—
Dew point51°
Sun, 2555° / 42°0
55 °
Teton, Sunday, 25 October
Clear. High 55°, low 42°.
Pressure30.27 inHg
Wind15.2 mph E
Humidity31%
Visibility—
Dew point20°
Mon, 2653° / 40°0
53 °
Teton, Monday, 26 October
Partly cloudy. High 53°, low 40°.
Pressure30.15 inHg
Wind13.9 mph NE
Humidity32%
Visibility—
Dew point21°
Tue, 2758° / 37°0
58 °
Teton, Tuesday, 27 October
Clear. High 58°, low 37°.
Pressure30.12 inHg
Wind17.7 mph SE
Humidity42%
Visibility—
Dew point28°
Wed, 2874° / 44°0
74 °
Teton, Wednesday, 28 October
Partly cloudy. High 74°, low 44°.
Pressure29.74 inHg
Wind19.1 mph S
Humidity42%
Visibility—
Dew point40°
Thu, 2971° / 53°0.12
71 °
Teton, Thursday, 29 October
Light rain. High 71°, low 53°.
Pressure29.38 inHg
Wind31.7 mph SW
Humidity67%
Visibility—
Dew point51°
Fri, 3049° / 41°0
49 °
Teton, Friday, 30 October
Partly cloudy. High 49°, low 41°.
Pressure29.62 inHg
Wind34.6 mph W
Humidity39%
Visibility—
Dew point23°
Sat, 3153° / 35°0
53 °
Teton, Saturday, 31 October
Mostly clear. High 53°, low 35°.
Pressure30.00 inHg
Wind15.9 mph W
Humidity29%
Visibility—
Dew point17°
Sun, 0154° / 40°0
54 °
Teton, Sunday, 1 November
Overcast. High 54°, low 40°.
Pressure29.88 inHg
Wind20.1 mph NW
Humidity46%
Visibility—
Dew point29°
Mon, 0267° / 44°0
67 °
Teton, Monday, 2 November
Mostly clear. High 67°, low 44°.
Pressure29.68 inHg
Wind21.7 mph S
Humidity26%
Visibility—
Dew point25°
Tue, 0357° / 50°0
57 °
Teton, Tuesday, 3 November
Overcast. High 57°, low 50°.
Pressure29.47 inHg
Wind17.9 mph S
Humidity51%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Mon, 1647° / 29°0.02
47 °
Teton, Monday, 16 November
Climate normal for this date — 60-year average.
Average high47°
Average low29°
Average precipitation0.02 in
Chance of precipitation7%
Record high71° (2001)
Record low2° (2014)
Tue, 1745° / 29°0.02
45 °
Teton, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high45°
Average low29°
Average precipitation0.02 in
Chance of precipitation22%
Record high70° (2001)
Record low1° (2000)
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.