As of 03:04 CST

Weather in Sinai, SD

22°Current weather

Sinai, Friday, 13 November, 03:04

Clear. Feels like 22°. High 38°, low 21°.

Pressure30.21 inHg
Wind0 mph N
Humidity98%
Visibility6.2 mi
Dew point22°

Monthly outlook for Sinai, SD: average high 44.2°, average low 30.8°. That is 3.3° above the climate normal for November. Precipitation is expected on 3 days (about 0.3 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 22 November (60.4°), the coolest 24 November (13.6°).

44.2°/30.8°
Average high / low
+3.3°
Above normal
3 / 3
Wet days / normal
0.3 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
13 November – 22 November49.1°40.3°+4.9°
23 November – 2 December36.1°33.7°+1.3°
3 December – 12 Decemberat normal29.2°—

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).

Sat, 1441° / 22°0Clear
41 °Clear

Sinai, Saturday, 14 November

Clear. High 41°, low 22°.

Pressure30.24 inHg
Wind12.1 mph S
Humidity72%
Visibility6.2 mi
Dew point25°
Sun, 1547° / 31°0Clear
47 °Clear

Sinai, Sunday, 15 November

Clear. High 47°, low 31°.

Pressure30.33 inHg
Wind12.1 mph S
Humidity61%
Visibility6.2 mi
Dew point31°
Mon, 1652° / 37°0Clear
52 °Clear

Sinai, Monday, 16 November

Clear. High 52°, low 37°.

Pressure30.21 inHg
Wind15.8 mph S
Humidity65%
Visibility6.2 mi
Dew point38°
Tue, 1749° / 40°0Overcast
49 °Overcast

Sinai, Tuesday, 17 November

Overcast. High 49°, low 40°.

Pressure30.09 inHg
Wind19.6 mph S
Humidity73%
Visibility—
Dew point38°
Wed, 1859° / 47°0Partly cloudy
59 °Partly cloudy

Sinai, Wednesday, 18 November

Partly cloudy. High 59°, low 47°.

Pressure29.74 inHg
Wind20.5 mph S
Humidity66%
Visibility—
Dew point43°
Thu, 1948° / 39°0Overcast
48 °Overcast

Sinai, Thursday, 19 November

Overcast. High 48°, low 39°.

Pressure30.27 inHg
Wind20.3 mph W
Humidity60%
Visibility—
Dew point33°
Fri, 2044° / 36°0.1Light rain
44 °Light rain

Sinai, Friday, 20 November

Light rain. High 44°, low 36°.

Pressure30.30 inHg
Wind11.2 mph SE
Humidity64%
Visibility—
Dew point32°
Sat, 2151° / 42°0.06Light rain
51 °Light rain

Sinai, Saturday, 21 November

Light rain. High 51°, low 42°.

Pressure30.00 inHg
Wind7.1 mph SE
Humidity92%
Visibility—
Dew point46°
Sun, 2260° / 44°0.08Light rain
60 °Light rain

Sinai, Sunday, 22 November

Light rain. High 60°, low 44°.

Pressure29.44 inHg
Wind21.2 mph S
Humidity75%
Visibility—
Dew point52°
Mon, 2335° / 17°0.02Snow
35 °Snow

Sinai, Monday, 23 November

Snow. High 35°, low 17°.

Pressure30.24 inHg
Wind21.8 mph NW
Humidity54%
Visibility—
Dew point9°
Tue, 2424° / 14°0Clear
24 °Clear

Sinai, Tuesday, 24 November

Clear. High 24°, low 14°.

Pressure30.47 inHg
Wind12 mph NW
Humidity41%
Visibility—
Dew point0°
Wed, 2529° / 17°0Overcast
29 °Overcast

Sinai, Wednesday, 25 November

Overcast. High 29°, low 17°.

Pressure30.65 inHg
Wind9.8 mph SE
Humidity34%
Visibility—
Dew point1°
Thu, 2638° / 23°0Overcast
38 °Overcast

Sinai, Thursday, 26 November

Overcast. High 38°, low 23°.

Pressure30.27 inHg
Wind15.4 mph S
Humidity48%
Visibility—
Dew point16°
Fri, 2748° / 31°0Mostly clear
48 °Mostly clear

Sinai, Friday, 27 November

Mostly clear. High 48°, low 31°.

Pressure29.91 inHg
Wind14.5 mph S
Humidity60%
Visibility—
Dew point30°
Sat, 2843° / 31°0Overcast
43 °Overcast

Sinai, Saturday, 28 November

Overcast. High 43°, low 31°.

Pressure30.12 inHg
Wind7.9 mph NW
Humidity55%
Visibility—
Dew point25°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2933° / 21°0.04Climate normal
33 °Climate normal

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°0.05Climate normal
32 °Climate normal

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)
Tue, 0132° / 20°0.06Climate normal
32 °Climate normal

Sinai, Tuesday, 1 December

Climate normal for this date — 60-year average.

Average high32°
Average low20°
Average precipitation0.06 in
Chance of precipitation27%
Record high60° (1998)
Record low-3° (1985)
Wed, 0231° / 18°0.03Climate normal
31 °Climate normal

Sinai, Wednesday, 2 December

Climate normal for this date — 60-year average.

Average high31°
Average low18°
Average precipitation0.03 in
Chance of precipitation20%
Record high58° (1998)
Record low-12° (1985)
Thu, 0330° / 17°0.02Climate normal
30 °Climate normal

Sinai, Thursday, 3 December

Climate normal for this date — 60-year average.

Average high30°
Average low17°
Average precipitation0.02 in
Chance of precipitation20%
Record high58° (1998)
Record low-15° (1985)
Fri, 0431° / 17°0.03Climate normal
31 °Climate normal

Sinai, Friday, 4 December

Climate normal for this date — 60-year average.

Average high31°
Average low17°
Average precipitation0.03 in
Chance of precipitation17%
Record high48° (1960)
Record low-8° (1991)
Sat, 0531° / 17°0.02Climate normal
31 °Climate normal

Sinai, Saturday, 5 December

Climate normal for this date — 60-year average.

Average high31°
Average low17°
Average precipitation0.02 in
Chance of precipitation10%
Record high50° (1998)
Record low-5° (2005)
Sun, 0628° / 15°0.01Climate normal
28 °Climate normal

Sinai, Sunday, 6 December

Climate normal for this date — 60-year average.

Average high28°
Average low15°
Average precipitation0.01 in
Chance of precipitation10%
Record high50° (2023)
Record low-17° (1972)
Mon, 0728° / 16°0.02Climate normal
28 °Climate normal

Sinai, Monday, 7 December

Climate normal for this date — 60-year average.

Average high28°
Average low16°
Average precipitation0.02 in
Chance of precipitation18%
Record high49° (2024)
Record low-17° (1972)
Tue, 0828° / 16°0.02Climate normal
28 °Climate normal

Sinai, Tuesday, 8 December

Climate normal for this date — 60-year average.

Average high28°
Average low16°
Average precipitation0.02 in
Chance of precipitation17%
Record high48° (2020)
Record low-11° (1976)
Wed, 0929° / 15°0.03Climate normal
29 °Climate normal

Sinai, Wednesday, 9 December

Climate normal for this date — 60-year average.

Average high29°
Average low15°
Average precipitation0.03 in
Chance of precipitation18%
Record high49° (2015)
Record low-15° (1977)
Thu, 1029° / 14°0.02Climate normal
29 °Climate normal

Sinai, Thursday, 10 December

Climate normal for this date — 60-year average.

Average high29°
Average low14°
Average precipitation0.02 in
Chance of precipitation12%
Record high49° (1979)
Record low-15° (1977)
Fri, 1128° / 14°0.02Climate normal
28 °Climate normal

Sinai, Friday, 11 December

Climate normal for this date — 60-year average.

Average high28°
Average low14°
Average precipitation0.02 in
Chance of precipitation8%
Record high48° (1984)
Record low-9° (2000)
Sat, 1228° / 14°0.01Climate normal
28 °Climate normal

Sinai, Saturday, 12 December

Climate normal for this date — 60-year average.

Average high28°
Average low14°
Average precipitation0.01 in
Chance of precipitation8%
Record high46° (1998)
Record low-18° (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 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.