As of 08:39 CDT

Weather in Fort Thompson, SD

54°

Fort Thompson, Saturday, 31 October, 08:39

Overcast. Feels like 53°. High 67°, low 51°.

Pressure30.06 inHg

Wind9 mph SE

Humidity98%

Visibility6.2 mi

Dew point53°

See detailed hourly forecast

Monthly outlook for Fort Thompson, SD: average high 61°, average low 46.9°. That is 7.1° above the climate normal for October. Precipitation is expected on 3 days (about 1.8 inches), against a normal of 2 days and 0.5 inches. The warmest day looks like 31 October (67.4°), the coolest 4 November (36.7°).

61°/46.9°

Average high / low

+7.1°

Above normal

3 / 2

Wet days / normal

1.8 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
31 October – 9 November	61.1°	50.2°	+6.1°
10 November – 19 November	60.8°	44.5°	+9.1°
20 November – 29 November	at normal	38.6°	—

October records over 66 years

92.1°4 October 1975All-time high

5.2°27 October 2020All-time low

Sun, 0166° / 56°

0.12

66 °

Fort Thompson, Sunday, 1 November

Rain. High 66°, low 56°.

Pressure30.03 inHg

Wind15.8 mph S

Humidity76%

Visibility6.2 mi

Dew point55°

Mon, 0260° / 56°

1.62

60 °

Fort Thompson, Monday, 2 November

Heavy rain. High 60°, low 56°.

Pressure29.47 inHg

Wind12.4 mph E

Humidity94%

Visibility2.7 mi

Dew point56°

Tue, 0356° / 45°

0.03

56 °

Fort Thompson, Tuesday, 3 November

Light rain. High 56°, low 45°.

Pressure30.12 inHg

Wind17.5 mph NW

Humidity60%

Visibility6.2 mi

Dew point37°

Wed, 0455° / 37°

55 °

Fort Thompson, Wednesday, 4 November

Clear. High 55°, low 37°.

Pressure30.12 inHg

Wind4.2 mph NW

Humidity48%

Visibility—

Dew point30°

Thu, 0555° / 38°

55 °

Fort Thompson, Thursday, 5 November

Overcast. High 55°, low 38°.

Pressure30.03 inHg

Wind9.9 mph NE

Humidity65%

Visibility—

Dew point39°

Fri, 0663° / 49°

63 °

Fort Thompson, Friday, 6 November

Overcast. High 63°, low 49°.

Pressure29.85 inHg

Wind8.5 mph E

Humidity50%

Visibility—

Dew point39°

Sat, 0760° / 47°

60 °

Fort Thompson, Saturday, 7 November

Overcast. High 60°, low 47°.

Pressure29.88 inHg

Wind9.8 mph NE

Humidity62%

Visibility—

Dew point45°

Sun, 0860° / 46°

60 °

Fort Thompson, Sunday, 8 November

Clear. High 60°, low 46°.

Pressure30.12 inHg

Wind9 mph W

Humidity47%

Visibility—

Dew point35°

Mon, 0967° / 47°

67 °

Fort Thompson, Monday, 9 November

Clear. High 67°, low 47°.

Pressure29.97 inHg

Wind7.1 mph SW

Humidity39%

Visibility—

Dew point35°

Tue, 1057° / 47°

57 °

Fort Thompson, Tuesday, 10 November

Mostly clear. High 57°, low 47°.

Pressure30.24 inHg

Wind11.7 mph NW

Humidity32%

Visibility—

Dew point26°

Wed, 1161° / 41°

61 °

Fort Thompson, Wednesday, 11 November

Overcast. High 61°, low 41°.

Pressure29.91 inHg

Wind12.9 mph S

Humidity46%

Visibility—

Dew point33°

Thu, 1257° / 43°

57 °

Fort Thompson, Thursday, 12 November

Overcast. High 57°, low 43°.

Pressure29.88 inHg

Wind7.3 mph E

Humidity70%

Visibility—

Dew point42°

Fri, 1362° / 44°

62 °

Fort Thompson, Friday, 13 November

Partly cloudy. High 62°, low 44°.

Pressure29.97 inHg

Wind7.1 mph W

Humidity44%

Visibility—

Dew point35°

Sat, 1466° / 50°

66 °

Fort Thompson, Saturday, 14 November

Overcast. High 66°, low 50°.

Pressure29.88 inHg

Wind8.7 mph W

Humidity35%

Visibility—

Dew point33°

Sun, 1562° / 53°

62 °

Fort Thompson, Sunday, 15 November

Overcast. High 62°, low 53°.

Pressure30.06 inHg

Wind13.2 mph NW

Humidity38%

Visibility—

Dew point35°

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

Mon, 1646° / 29°

0.04

46 °

Fort Thompson, Monday, 16 November

Climate normal for this date — 60-year average.

Average high46°

Average low29°

Average precipitation0.04 in

Chance of precipitation7%

Record high70° (2001)

Record low1° (2014)

Tue, 1744° / 29°

0.03

44 °

Fort Thompson, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high44°

Average low29°

Average precipitation0.03 in

Chance of precipitation17%

Record high68° (2001)

Record low0° (2000)

Wed, 1843° / 28°

0.03

43 °

Fort Thompson, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high43°

Average low28°

Average precipitation0.03 in

Chance of precipitation18%

Record high67° (2020)

Record low-1° (2014)

Thu, 1943° / 29°

0.04

43 °

Fort Thompson, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high43°

Average low29°

Average precipitation0.04 in

Chance of precipitation22%

Record high65° (2003)

Record low8° (1985)

Fri, 2041° / 26°

0.02

41 °

Fort Thompson, Friday, 20 November

Climate normal for this date — 60-year average.

Average high41°

Average low26°

Average precipitation0.02 in

Chance of precipitation10%

Record high69° (1962)

Record low1° (1985)

Sat, 2141° / 26°

0.02

41 °

Fort Thompson, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high41°

Average low26°

Average precipitation0.02 in

Chance of precipitation10%

Record high67° (2012)

Record low-5° (1985)

Sun, 2242° / 25°

0.02

42 °

Fort Thompson, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high42°

Average low25°

Average precipitation0.02 in

Chance of precipitation15%

Record high63° (2006)

Record low1° (2000)

Mon, 2340° / 25°

0.02

40 °

Fort Thompson, Monday, 23 November

Climate normal for this date — 60-year average.

Average high40°

Average low25°

Average precipitation0.02 in

Chance of precipitation13%

Record high61° (2025)

Record low-9° (1985)

Tue, 2440° / 24°

0.02

40 °

Fort Thompson, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high40°

Average low24°

Average precipitation0.02 in

Chance of precipitation8%

Record high65° (1990)

Record low-8° (1985)

Wed, 2538° / 24°

0.01

38 °

Fort Thompson, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high38°

Average low24°

Average precipitation0.01 in

Chance of precipitation10%

Record high64° (1960)

Record low-3° (1996)

Thu, 2636° / 23°

0.05

36 °

Fort Thompson, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high36°

Average low23°

Average precipitation0.05 in

Chance of precipitation30%

Record high60° (1998)

Record low-3° (1996)

Fri, 2735° / 22°

0.05

35 °

Fort Thompson, Friday, 27 November

Climate normal for this date — 60-year average.

Average high35°

Average low22°

Average precipitation0.05 in

Chance of precipitation20%

Record high65° (2017)

Record low-4° (1985)

Sat, 2836° / 21°

0.05

36 °

Fort Thompson, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high36°

Average low21°

Average precipitation0.05 in

Chance of precipitation15%

Record high55° (1998)

Record low-6° (1985)

Sun, 2936° / 22°

0.02

36 °

Fort Thompson, Sunday, 29 November

Climate normal for this date — 60-year average.

Average high36°

Average low22°

Average precipitation0.02 in

Chance of precipitation12%

Record high58° (1998)

Record low-4° (1985)

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 Fort Thompson, 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 Fort Thompson, 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.