As of 19:35 CST

Weather in Groton, SD

38°

Groton, Saturday, 14 November, 19:35

Partly cloudy. Feels like 33°. High 46°, low 25°.

Pressure30.15 inHg

Wind7 mph SE

Humidity64%

Visibility6.2 mi

Dew point28°

See detailed hourly forecast

Monthly outlook for Groton, SD: average high 46.7°, average low 37.4°. That is 5.6° above the climate normal for November. Precipitation is expected on 4 days (about 1.2 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 18 November (55.9°), the coolest 14 November (24.9°).

46.7°/37.4°

Average high / low

+5.6°

Above normal

4 / 3

Wet days / normal

1.2 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
14 November – 23 November	47.5°	38.8°	+4.8°
24 November – 3 December	45.4°	32.3°	+7.3°
4 December – 13 December	at normal	28.2°	—

November records over 66 years

74.1°1 November 1990All-time high

-14.8°30 November 1964All-time low

Sun, 1550° / 30°

50 °

Groton, Sunday, 15 November

Clear. High 50°, low 30°.

Pressure30.21 inHg

Wind15.4 mph S

Humidity58%

Visibility6.2 mi

Dew point32°

Mon, 1655° / 37°

55 °

Groton, Monday, 16 November

Clear. High 55°, low 37°.

Pressure30.12 inHg

Wind12.2 mph S

Humidity68%

Visibility6.2 mi

Dew point42°

Tue, 1754° / 43°

54 °

Groton, Tuesday, 17 November

Overcast. High 54°, low 43°.

Pressure30.00 inHg

Wind15.1 mph S

Humidity69%

Visibility6.2 mi

Dew point42°

Wed, 1856° / 45°

56 °

Groton, Wednesday, 18 November

Overcast. High 56°, low 45°.

Pressure29.80 inHg

Wind10.7 mph SW

Humidity70%

Visibility6.2 mi

Dew point45°

Thu, 1946° / 39°

46 °

Groton, Thursday, 19 November

Overcast. High 46°, low 39°.

Pressure30.36 inHg

Wind13.1 mph NW

Humidity63%

Visibility—

Dew point31°

Fri, 2045° / 38°

0.04

45 °

Groton, Friday, 20 November

Light rain. High 45°, low 38°.

Pressure29.88 inHg

Wind8.9 mph SE

Humidity80%

Visibility—

Dew point38°

Sat, 2141° / 37°

0.06

41 °

Groton, Saturday, 21 November

Snow. High 41°, low 37°.

Pressure30.03 inHg

Wind15 mph NW

Humidity87%

Visibility—

Dew point35°

Sun, 2238° / 31°

38 °

Groton, Sunday, 22 November

Overcast. High 38°, low 31°.

Pressure30.45 inHg

Wind8.7 mph NW

Humidity60%

Visibility—

Dew point24°

Mon, 2343° / 30°

43 °

Groton, Monday, 23 November

Overcast. High 43°, low 30°.

Pressure30.45 inHg

Wind14.7 mph SE

Humidity54%

Visibility—

Dew point24°

Tue, 2443° / 40°

0.02

43 °

Groton, Tuesday, 24 November

Light rain. High 43°, low 40°.

Pressure30.06 inHg

Wind17.1 mph S

Humidity81%

Visibility—

Dew point37°

Wed, 2549° / 39°

49 °

Groton, Wednesday, 25 November

Overcast. High 49°, low 39°.

Pressure29.97 inHg

Wind12.1 mph SE

Humidity78%

Visibility—

Dew point38°

Thu, 2649° / 42°

0.09

49 °

Groton, Thursday, 26 November

Light rain. High 49°, low 42°.

Pressure30.36 inHg

Wind12.1 mph E

Humidity72%

Visibility—

Dew point37°

Fri, 2746° / 40°

0.42

46 °

Groton, Friday, 27 November

Rain. High 46°, low 40°.

Pressure30.15 inHg

Wind19 mph E

Humidity76%

Visibility—

Dew point38°

Sat, 2842° / 41°

0.57

42 °

Groton, Saturday, 28 November

Rain. High 42°, low 41°.

Pressure29.94 inHg

Wind10.8 mph E

Humidity90%

Visibility—

Dew point39°

Sun, 2944° / 41°

0.01

44 °

Groton, Sunday, 29 November

Light rain. High 44°, low 41°.

Pressure29.94 inHg

Wind6.8 mph SW

Humidity86%

Visibility—

Dew point39°

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

Mon, 3032° / 20°

0.04

32 °

Groton, Monday, 30 November

Climate normal for this date — 60-year average.

Average high32°

Average low20°

Average precipitation0.04 in

Chance of precipitation20%

Record high55° (1995)

Record low-15° (1964)

Tue, 0131° / 19°

0.04

31 °

Groton, Tuesday, 1 December

Climate normal for this date — 60-year average.

Average high31°

Average low19°

Average precipitation0.04 in

Chance of precipitation25%

Record high58° (1998)

Record low-15° (2014)

Wed, 0230° / 17°

0.03

30 °

Groton, Wednesday, 2 December

Climate normal for this date — 60-year average.

Average high30°

Average low17°

Average precipitation0.03 in

Chance of precipitation20%

Record high56° (1998)

Record low-17° (1985)

Thu, 0330° / 17°

0.02

30 °

Groton, Thursday, 3 December

Climate normal for this date — 60-year average.

Average high30°

Average low17°

Average precipitation0.02 in

Chance of precipitation13%

Record high53° (2012)

Record low-17° (1985)

Fri, 0431° / 17°

0.03

31 °

Groton, Friday, 4 December

Climate normal for this date — 60-year average.

Average high31°

Average low17°

Average precipitation0.03 in

Chance of precipitation17%

Record high46° (1995)

Record low-11° (2025)

Sat, 0529° / 15°

0.02

29 °

Groton, Saturday, 5 December

Climate normal for this date — 60-year average.

Average high29°

Average low15°

Average precipitation0.02 in

Chance of precipitation15%

Record high49° (1979)

Record low-10° (1972)

Sun, 0628° / 13°

0.02

28 °

Groton, Sunday, 6 December

Climate normal for this date — 60-year average.

Average high28°

Average low13°

Average precipitation0.02 in

Chance of precipitation12%

Record high50° (2023)

Record low-25° (1972)

Mon, 0728° / 15°

0.02

28 °

Groton, Monday, 7 December

Climate normal for this date — 60-year average.

Average high28°

Average low15°

Average precipitation0.02 in

Chance of precipitation18%

Record high53° (2023)

Record low-17° (2013)

Tue, 0828° / 14°

0.02

28 °

Groton, Tuesday, 8 December

Climate normal for this date — 60-year average.

Average high28°

Average low14°

Average precipitation0.02 in

Chance of precipitation17%

Record high50° (2020)

Record low-15° (1972)

Wed, 0928° / 13°

0.02

28 °

Groton, Wednesday, 9 December

Climate normal for this date — 60-year average.

Average high28°

Average low13°

Average precipitation0.02 in

Chance of precipitation17%

Record high51° (1990)

Record low-23° (1977)

Thu, 1028° / 13°

0.01

28 °

Groton, Thursday, 10 December

Climate normal for this date — 60-year average.

Average high28°

Average low13°

Average precipitation0.01 in

Chance of precipitation8%

Record high50° (1979)

Record low-23° (1972)

Fri, 1128° / 13°

0.02

28 °

Groton, Friday, 11 December

Climate normal for this date — 60-year average.

Average high28°

Average low13°

Average precipitation0.02 in

Chance of precipitation15%

Record high46° (1998)

Record low-15° (2013)

Sat, 1227° / 13°

0.01

27 °

Groton, Saturday, 12 December

Climate normal for this date — 60-year average.

Average high27°

Average low13°

Average precipitation0.01 in

Chance of precipitation10%

Record high47° (1980)

Record low-20° (2000)

Sun, 1327° / 13°

0.03

27 °

Groton, Sunday, 13 December

Climate normal for this date — 60-year average.

Average high27°

Average low13°

Average precipitation0.03 in

Chance of precipitation17%

Record high49° (2014)

Record low-21° (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 Groton, 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 Groton, 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.