Monthly outlook for Groton, SD: average high 52.4°, average low 37°. That is 6.2° above the climate normal for November. Precipitation is expected on 2 days (about 1.4 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 9 November (60.9°), the coolest 12 November (28.7°).
52.4°/37°
Average high / low
+6.2°
Above normal
2 / 3
Wet days / normal
1.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
6 November – 15 November
53.6°
42.7°
+6°
16 November – 25 November
50.4°
37.5°
+7.2°
26 November – 5 December
at normal
31.3°
—
November records over 66 years
74.1°1 November 1990All-time high
-14.8°30 November 1964All-time low
Sat, 0759° / 33°0
59 °
Groton, Saturday, 7 November
Overcast. High 59°, low 33°.
Pressure30.00 inHg
Wind10.8 mph SW
Humidity61%
Visibility6.2 mi
Dew point40°
Sun, 0853° / 37°0
53 °
Groton, Sunday, 8 November
Clear. High 53°, low 37°.
Pressure30.18 inHg
Wind3.8 mph SW
Humidity52%
Visibility6.2 mi
Dew point33°
Mon, 0961° / 39°0
61 °
Groton, Monday, 9 November
Partly cloudy. High 61°, low 39°.
Pressure30.00 inHg
Wind7 mph NW
Humidity46%
Visibility6.2 mi
Dew point39°
Tue, 1054° / 35°0
54 °
Groton, Tuesday, 10 November
Overcast. High 54°, low 35°.
Pressure30.12 inHg
Wind8 mph S
Humidity57%
Visibility—
Dew point34°
Wed, 1158° / 40°0
58 °
Groton, Wednesday, 11 November
Overcast. High 58°, low 40°.
Pressure29.97 inHg
Wind16.3 mph NW
Humidity55%
Visibility—
Dew point40°
Thu, 1241° / 29°0
41 °
Groton, Thursday, 12 November
Mostly clear. High 41°, low 29°.
Pressure30.39 inHg
Wind7.2 mph SW
Humidity60%
Visibility—
Dew point24°
Fri, 1350° / 30°0
50 °
Groton, Friday, 13 November
Clear. High 50°, low 30°.
Pressure30.00 inHg
Wind7.1 mph S
Humidity51%
Visibility—
Dew point27°
Sat, 1457° / 36°0
57 °
Groton, Saturday, 14 November
Clear. High 57°, low 36°.
Pressure29.91 inHg
Wind13.4 mph S
Humidity48%
Visibility—
Dew point32°
Sun, 1561° / 42°0
61 °
Groton, Sunday, 15 November
Clear. High 61°, low 42°.
Pressure29.77 inHg
Wind10.8 mph S
Humidity42%
Visibility—
Dew point31°
Mon, 1659° / 42°0
59 °
Groton, Monday, 16 November
Overcast. High 59°, low 42°.
Pressure29.94 inHg
Wind8.1 mph N
Humidity37%
Visibility—
Dew point28°
Tue, 1753° / 41°0
53 °
Groton, Tuesday, 17 November
Overcast. High 53°, low 41°.
Pressure30.24 inHg
Wind9.2 mph E
Humidity37%
Visibility—
Dew point25°
Wed, 1856° / 46°0
56 °
Groton, Wednesday, 18 November
Overcast. High 56°, low 46°.
Pressure29.97 inHg
Wind14.4 mph S
Humidity83%
Visibility—
Dew point47°
Thu, 1948° / 40°0
48 °
Groton, Thursday, 19 November
Overcast. High 48°, low 40°.
Pressure30.30 inHg
Wind11 mph N
Humidity45%
Visibility—
Dew point26°
Fri, 2043° / 36°0.06
43 °
Groton, Friday, 20 November
Snow. High 43°, low 36°.
Pressure30.30 inHg
Wind16 mph NE
Humidity64%
Visibility—
Dew point29°
Sat, 2142° / 36°1.34
42 °
Groton, Saturday, 21 November
Heavy rain. High 42°, low 36°.
Pressure29.71 inHg
Wind22.2 mph NE
Humidity89%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2237° / 22°0.02
37 °
Groton, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high37°
Average low22°
Average precipitation0.02 in
Chance of precipitation23%
Record high56° (2006)
Record low-2° (1977)
Mon, 2335° / 22°0.03
35 °
Groton, Monday, 23 November
Climate normal for this date — 60-year average.
Average high35°
Average low22°
Average precipitation0.03 in
Chance of precipitation18%
Record high54° (2025)
Record low-6° (1985)
Tue, 2436° / 21°0.03
36 °
Groton, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high36°
Average low21°
Average precipitation0.03 in
Chance of precipitation12%
Record high58° (1990)
Record low-13° (1985)
Wed, 2534° / 22°0.04
34 °
Groton, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high34°
Average low22°
Average precipitation0.04 in
Chance of precipitation18%
Record high56° (1960)
Record low-8° (1977)
Thu, 2633° / 20°0.04
33 °
Groton, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high33°
Average low20°
Average precipitation0.04 in
Chance of precipitation25%
Record high55° (1998)
Record low-11° (1996)
Fri, 2731° / 18°0.05
31 °
Groton, Friday, 27 November
Climate normal for this date — 60-year average.
Average high31°
Average low18°
Average precipitation0.05 in
Chance of precipitation23%
Record high58° (2017)
Record low-12° (1985)
Sat, 2832° / 19°0.06
32 °
Groton, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high32°
Average low19°
Average precipitation0.06 in
Chance of precipitation20%
Record high51° (2011)
Record low-12° (1985)
Sun, 2933° / 19°0.02
33 °
Groton, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high33°
Average low19°
Average precipitation0.02 in
Chance of precipitation15%
Record high53° (2021)
Record low-13° (1985)
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)
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.