As of 09:36 MST

Weather in Sulphur, SD

56°

Sulphur, Wednesday, 11 November, 09:36

Overcast. Feels like 53°. High 60°, low 38°.

Pressure30.18 inHg

Wind10.6 mph NW

Humidity49%

Visibility6.2 mi

Dew point37°

See detailed hourly forecast

Monthly outlook for Sulphur, SD: average high 48.9°, average low 35.4°. That is 3.5° above the climate normal for November. Precipitation is expected on 2 days (about 0.4 inches), against a normal of 2 days and 0.3 inches. The warmest day looks like 26 November (61.4°), the coolest 21 November (27.6°).

48.9°/35.4°

Average high / low

+3.5°

Above normal

2 / 2

Wet days / normal

0.4 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
11 November – 20 November	51°	44.3°	+3.7°
21 November – 30 November	45.5°	38.4°	+3.9°
1 December – 10 December	at normal	35.6°	—

November records over 66 years

78.3°8 November 1999All-time high

-18.8°27 November 1985All-time low

Thu, 1247° / 33°

47 °

Sulphur, Thursday, 12 November

Overcast. High 47°, low 33°.

Pressure30.21 inHg

Wind9.7 mph SE

Humidity75%

Visibility6.2 mi

Dew point36°

Fri, 1346° / 30°

46 °

Sulphur, Friday, 13 November

Partly cloudy. High 46°, low 30°.

Pressure29.97 inHg

Wind14.2 mph SE

Humidity65%

Visibility6.2 mi

Dew point33°

Sat, 1450° / 37°

50 °

Sulphur, Saturday, 14 November

Overcast. High 50°, low 37°.

Pressure29.80 inHg

Wind20 mph SE

Humidity66%

Visibility6.2 mi

Dew point38°

Sun, 1556° / 38°

56 °

Sulphur, Sunday, 15 November

Clear. High 56°, low 38°.

Pressure30.03 inHg

Wind11.2 mph SE

Humidity62%

Visibility—

Dew point37°

Mon, 1658° / 36°

58 °

Sulphur, Monday, 16 November

Clear. High 58°, low 36°.

Pressure30.03 inHg

Wind10.7 mph SE

Humidity62%

Visibility—

Dew point37°

Tue, 1756° / 41°

56 °

Sulphur, Tuesday, 17 November

Overcast. High 56°, low 41°.

Pressure29.77 inHg

Wind15.1 mph SE

Humidity56%

Visibility—

Dew point35°

Wed, 1851° / 40°

51 °

Sulphur, Wednesday, 18 November

Overcast. High 51°, low 40°.

Pressure29.65 inHg

Wind15.1 mph NW

Humidity59%

Visibility—

Dew point34°

Thu, 1945° / 40°

0.1

45 °

Sulphur, Thursday, 19 November

Light rain. High 45°, low 40°.

Pressure29.83 inHg

Wind15.2 mph NW

Humidity71%

Visibility—

Dew point35°

Fri, 2039° / 32°

0.28

39 °

Sulphur, Friday, 20 November

Snow. High 39°, low 32°.

Pressure30.00 inHg

Wind17.2 mph N

Humidity97%

Visibility—

Dew point34°

Sat, 2135° / 28°

35 °

Sulphur, Saturday, 21 November

Partly cloudy. High 35°, low 28°.

Pressure30.36 inHg

Wind17.6 mph NW

Humidity62%

Visibility—

Dew point20°

Sun, 2235° / 29°

35 °

Sulphur, Sunday, 22 November

Overcast. High 35°, low 29°.

Pressure30.24 inHg

Wind9.4 mph NW

Humidity70%

Visibility—

Dew point25°

Mon, 2345° / 29°

45 °

Sulphur, Monday, 23 November

Overcast. High 45°, low 29°.

Pressure30.09 inHg

Wind14.4 mph W

Humidity50%

Visibility—

Dew point24°

Tue, 2447° / 34°

47 °

Sulphur, Tuesday, 24 November

Overcast. High 47°, low 34°.

Pressure29.97 inHg

Wind16.5 mph W

Humidity46%

Visibility—

Dew point24°

Wed, 2550° / 41°

50 °

Sulphur, Wednesday, 25 November

Overcast. High 50°, low 41°.

Pressure30.12 inHg

Wind23.6 mph NW

Humidity55%

Visibility—

Dew point33°

Thu, 2661° / 39°

61 °

Sulphur, Thursday, 26 November

Overcast. High 61°, low 39°.

Pressure29.80 inHg

Wind21.4 mph NW

Humidity42%

Visibility—

Dew point29°

From day 17 onward the outlook is built from 60-year climate statistics

Fri, 2735° / 21°

0.02

35 °

Sulphur, Friday, 27 November

Climate normal for this date — 60-year average.

Average high35°

Average low21°

Average precipitation0.02 in

Chance of precipitation12%

Record high64° (2017)

Record low-19° (1985)

Sat, 2836° / 21°

0.01

36 °

Sulphur, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high36°

Average low21°

Average precipitation0.01 in

Chance of precipitation13%

Record high58° (2002)

Record low-10° (1985)

Sun, 2937° / 21°

0.02

37 °

Sulphur, Sunday, 29 November

Climate normal for this date — 60-year average.

Average high37°

Average low21°

Average precipitation0.02 in

Chance of precipitation7%

Record high58° (2021)

Record low-10° (1964)

Mon, 3036° / 21°

0.04

36 °

Sulphur, Monday, 30 November

Climate normal for this date — 60-year average.

Average high36°

Average low21°

Average precipitation0.04 in

Chance of precipitation18%

Record high60° (1995)

Record low-6° (1985)

Tue, 0137° / 21°

0.04

37 °

Sulphur, Tuesday, 1 December

Climate normal for this date — 60-year average.

Average high37°

Average low21°

Average precipitation0.04 in

Chance of precipitation18%

Record high68° (2021)

Record low-12° (1985)

Wed, 0237° / 20°

0.03

37 °

Sulphur, Wednesday, 2 December

Climate normal for this date — 60-year average.

Average high37°

Average low20°

Average precipitation0.03 in

Chance of precipitation13%

Record high64° (2012)

Record low-25° (1985)

Thu, 0337° / 20°

0.02

37 °

Sulphur, Thursday, 3 December

Climate normal for this date — 60-year average.

Average high37°

Average low20°

Average precipitation0.02 in

Chance of precipitation8%

Record high61° (2012)

Record low-2° (1985)

Fri, 0438° / 21°

0.02

38 °

Sulphur, Friday, 4 December

Climate normal for this date — 60-year average.

Average high38°

Average low21°

Average precipitation0.02 in

Chance of precipitation8%

Record high66° (1965)

Record low-3° (1984)

Sat, 0535° / 19°

0.02

35 °

Sulphur, Saturday, 5 December

Climate normal for this date — 60-year average.

Average high35°

Average low19°

Average precipitation0.02 in

Chance of precipitation18%

Record high63° (1987)

Record low-9° (2013)

Sun, 0634° / 17°

0.01

34 °

Sulphur, Sunday, 6 December

Climate normal for this date — 60-year average.

Average high34°

Average low17°

Average precipitation0.01 in

Chance of precipitation8%

Record high60° (2023)

Record low-18° (1972)

Mon, 0734° / 18°

0.02

34 °

Sulphur, Monday, 7 December

Climate normal for this date — 60-year average.

Average high34°

Average low18°

Average precipitation0.02 in

Chance of precipitation17%

Record high58° (2024)

Record low-22° (2013)

Tue, 0834° / 18°

0.02

34 °

Sulphur, Tuesday, 8 December

Climate normal for this date — 60-year average.

Average high34°

Average low18°

Average precipitation0.02 in

Chance of precipitation18%

Record high62° (2020)

Record low-27° (1972)

Wed, 0936° / 18°

0.01

36 °

Sulphur, Wednesday, 9 December

Climate normal for this date — 60-year average.

Average high36°

Average low18°

Average precipitation0.01 in

Chance of precipitation10%

Record high62° (2015)

Record low-27° (1977)

Thu, 1035° / 19°

0.01

35 °

Sulphur, Thursday, 10 December

Climate normal for this date — 60-year average.

Average high35°

Average low19°

Average precipitation0.01 in

Chance of precipitation8%

Record high60° (1979)

Record low-10° (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 Sulphur, 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 Sulphur, 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.