As of 08:38 CST

Weather in Sinai, SD

53°

Sinai, Sunday, 1 November, 08:38

Fog. Feels like 53°. High 61°, low 53°.

Pressure30.12 inHg

Wind15 mph S

Humidity100%

Visibility1.0 mi

Dew point53°

See detailed hourly forecast

Monthly outlook for Sinai, SD: average high 56.5°, average low 44.9°. That is 6.7° above the climate normal for November. Precipitation is expected on 4 days (about 2.6 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 13 November (65.1°), the coolest 12 November (39.1°).

56.5°/44.9°

Average high / low

+6.7°

Above normal

4 / 3

Wet days / normal

2.6 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
1 November – 10 November	54.9°	46.3°	+4.8°
11 November – 20 November	59.2°	40.7°	+10.3°
21 November – 30 November	at normal	34.9°	—

November records over 66 years

73.9°6 November 2020All-time high

-11.2°30 November 1964All-time low

Climate normals and records are computed from the nearest reference point — Nunda (6 mi).

Mon, 0263° / 55°

0.82

63 °

Sinai, Monday, 2 November

Rain. High 63°, low 55°.

Pressure29.44 inHg

Wind16.2 mph S

Humidity97%

Visibility3.9 mi

Dew point59°

Tue, 0355° / 45°

0.5

55 °

Sinai, Tuesday, 3 November

Rain. High 55°, low 45°.

Pressure29.83 inHg

Wind16.5 mph NW

Humidity94%

Visibility3.3 mi

Dew point45°

Wed, 0445° / 42°

0.43

45 °

Sinai, Wednesday, 4 November

Rain. High 45°, low 42°.

Pressure29.77 inHg

Wind15.2 mph N

Humidity86%

Visibility6.2 mi

Dew point39°

Thu, 0551° / 40°

0.02

51 °

Sinai, Thursday, 5 November

Light rain. High 51°, low 40°.

Pressure29.94 inHg

Wind14.4 mph N

Humidity62%

Visibility—

Dew point35°

Fri, 0651° / 42°

51 °

Sinai, Friday, 6 November

Overcast. High 51°, low 42°.

Pressure30.06 inHg

Wind9.3 mph S

Humidity67%

Visibility—

Dew point38°

Sat, 0756° / 43°

56 °

Sinai, Saturday, 7 November

Partly cloudy. High 56°, low 43°.

Pressure30.00 inHg

Wind14.6 mph NW

Humidity40%

Visibility—

Dew point29°

Sun, 0859° / 42°

59 °

Sinai, Sunday, 8 November

Partly cloudy. High 59°, low 42°.

Pressure29.88 inHg

Wind8.2 mph W

Humidity45%

Visibility—

Dew point34°

Mon, 0954° / 43°

54 °

Sinai, Monday, 9 November

Clear. High 54°, low 43°.

Pressure30.12 inHg

Wind12.6 mph NW

Humidity34%

Visibility—

Dew point25°

Tue, 1055° / 41°

55 °

Sinai, Tuesday, 10 November

Overcast. High 55°, low 41°.

Pressure30.06 inHg

Wind15.5 mph S

Humidity51%

Visibility—

Dew point34°

Wed, 1156° / 43°

56 °

Sinai, Wednesday, 11 November

Partly cloudy. High 56°, low 43°.

Pressure30.09 inHg

Wind10.7 mph N

Humidity51%

Visibility—

Dew point36°

Thu, 1258° / 39°

58 °

Sinai, Thursday, 12 November

Partly cloudy. High 58°, low 39°.

Pressure29.91 inHg

Wind16.2 mph S

Humidity53%

Visibility—

Dew point37°

Fri, 1365° / 48°

65 °

Sinai, Friday, 13 November

Partly cloudy. High 65°, low 48°.

Pressure29.56 inHg

Wind17.1 mph S

Humidity47%

Visibility—

Dew point40°

Sat, 1464° / 52°

64 °

Sinai, Saturday, 14 November

Overcast. High 64°, low 52°.

Pressure29.44 inHg

Wind16.7 mph S

Humidity49%

Visibility—

Dew point42°

Sun, 1559° / 49°

59 °

Sinai, Sunday, 15 November

Overcast. High 59°, low 49°.

Pressure29.41 inHg

Wind11.1 mph SE

Humidity56%

Visibility—

Dew point40°

Mon, 1652° / 42°

0.82

52 °

Sinai, Monday, 16 November

Rain. High 52°, low 42°.

Pressure29.29 inHg

Wind20.9 mph NW

Humidity71%

Visibility—

Dew point42°

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

Tue, 1741° / 27°

0.05

41 °

Sinai, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high41°

Average low27°

Average precipitation0.05 in

Chance of precipitation18%

Record high64° (2001)

Record low4° (2014)

Wed, 1840° / 27°

0.07

40 °

Sinai, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high40°

Average low27°

Average precipitation0.07 in

Chance of precipitation25%

Record high65° (1999)

Record low3° (1996)

Thu, 1940° / 26°

0.09

40 °

Sinai, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high40°

Average low26°

Average precipitation0.09 in

Chance of precipitation25%

Record high58° (2003)

Record low7° (1996)

Fri, 2038° / 25°

0.05

38 °

Sinai, Friday, 20 November

Climate normal for this date — 60-year average.

Average high38°

Average low25°

Average precipitation0.05 in

Chance of precipitation15%

Record high61° (1962)

Record low2° (1985)

Sat, 2138° / 23°

0.02

38 °

Sinai, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high38°

Average low23°

Average precipitation0.02 in

Chance of precipitation15%

Record high62° (2012)

Record low-4° (1985)

Sun, 2238° / 24°

0.02

38 °

Sinai, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high38°

Average low24°

Average precipitation0.02 in

Chance of precipitation18%

Record high58° (1974)

Record low6° (1970)

Mon, 2337° / 24°

0.03

37 °

Sinai, Monday, 23 November

Climate normal for this date — 60-year average.

Average high37°

Average low24°

Average precipitation0.03 in

Chance of precipitation15%

Record high54° (2006)

Record low-3° (1985)

Tue, 2437° / 23°

0.04

37 °

Sinai, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high37°

Average low23°

Average precipitation0.04 in

Chance of precipitation8%

Record high59° (1990)

Record low-6° (1985)

Wed, 2536° / 23°

0.02

36 °

Sinai, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high36°

Average low23°

Average precipitation0.02 in

Chance of precipitation12%

Record high58° (1960)

Record low0° (1975)

Thu, 2633° / 22°

0.06

33 °

Sinai, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high33°

Average low22°

Average precipitation0.06 in

Chance of precipitation37%

Record high56° (1998)

Record low-1° (1985)

Fri, 2732° / 20°

0.07

32 °

Sinai, Friday, 27 November

Climate normal for this date — 60-year average.

Average high32°

Average low20°

Average precipitation0.07 in

Chance of precipitation25%

Record high60° (2017)

Record low-7° (2014)

Sat, 2833° / 19°

0.07

33 °

Sinai, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high33°

Average low19°

Average precipitation0.07 in

Chance of precipitation22%

Record high56° (1998)

Record low-8° (1985)

Sun, 2933° / 21°

0.04

33 °

Sinai, Sunday, 29 November

Climate normal for this date — 60-year average.

Average high33°

Average low21°

Average precipitation0.04 in

Chance of precipitation20%

Record high55° (1998)

Record low-5° (1985)

Mon, 3032° / 20°

0.05

32 °

Sinai, Monday, 30 November

Climate normal for this date — 60-year average.

Average high32°

Average low20°

Average precipitation0.05 in

Chance of precipitation18%

Record high52° (1970)

Record low-11° (1964)

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 Sinai, 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 Sinai, 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.