Monthly outlook for Grover, SD: average high 55.7°, average low 42.7°. That is 1.1° above the climate normal for October. Precipitation is expected on 4 days (about 1.5 inches), against a normal of 3 days and 1.0 inches. The warmest day looks like 21 October (66°), the coolest 27 October (35°).
55.7°/42.7°
Average high / low
+1.1°
Above normal
4 / 3
Wet days / normal
1.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 October – 22 October
58.6°
54.9°
+2.1°
23 October – 1 November
51°
50.7°
+0.2°
2 November – 11 November
at normal
44.4°
—
October records over 66 years
85.5°1 October 2023All-time high
7°26 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Watertown (9 mi).
Wed, 1451° / 41°0
51 °
Grover, Wednesday, 14 October
Overcast. High 51°, low 41°.
Pressure30.27 inHg
Wind2.3 mph E
Humidity70%
Visibility6.2 mi
Dew point40°
Thu, 1558° / 44°0.05
58 °
Grover, Thursday, 15 October
Light rain. High 58°, low 44°.
Pressure30.18 inHg
Wind6.7 mph NW
Humidity75%
Visibility6.2 mi
Dew point45°
Fri, 1649° / 41°0
49 °
Grover, Friday, 16 October
Partly cloudy. High 49°, low 41°.
Pressure30.65 inHg
Wind12.3 mph N
Humidity60%
Visibility6.2 mi
Dew point32°
Sat, 1762° / 40°0
62 °
Grover, Saturday, 17 October
Clear. High 62°, low 40°.
Pressure30.12 inHg
Wind16.4 mph S
Humidity42%
Visibility—
Dew point31°
Sun, 1865° / 45°0
65 °
Grover, Sunday, 18 October
Partly cloudy. High 65°, low 45°.
Pressure29.97 inHg
Wind13.6 mph S
Humidity48%
Visibility—
Dew point40°
Mon, 1962° / 42°0
62 °
Grover, Monday, 19 October
Clear. High 62°, low 42°.
Pressure30.18 inHg
Wind9.4 mph SE
Humidity22%
Visibility—
Dew point18°
Tue, 2059° / 43°0
59 °
Grover, Tuesday, 20 October
Partly cloudy. High 59°, low 43°.
Pressure30.00 inHg
Wind18.2 mph S
Humidity70%
Visibility—
Dew point47°
Wed, 2166° / 57°0.22
66 °
Grover, Wednesday, 21 October
Light rain. High 66°, low 57°.
Pressure29.85 inHg
Wind16.4 mph S
Humidity86%
Visibility—
Dew point57°
Thu, 2263° / 53°0.18
63 °
Grover, Thursday, 22 October
Light rain. High 63°, low 53°.
Pressure29.77 inHg
Wind12.1 mph S
Humidity90%
Visibility—
Dew point52°
Fri, 2354° / 41°1.02
54 °
Grover, Friday, 23 October
Rain. High 54°, low 41°.
Pressure29.80 inHg
Wind22.4 mph W
Humidity87%
Visibility—
Dew point39°
Sat, 2453° / 40°0
53 °
Grover, Saturday, 24 October
Clear. High 53°, low 40°.
Pressure30.33 inHg
Wind18.2 mph W
Humidity47%
Visibility—
Dew point30°
Sun, 2556° / 39°0
56 °
Grover, Sunday, 25 October
Partly cloudy. High 56°, low 39°.
Pressure30.15 inHg
Wind19.2 mph NW
Humidity42%
Visibility—
Dew point30°
Mon, 2648° / 36°0
48 °
Grover, Monday, 26 October
Partly cloudy. High 48°, low 36°.
Pressure30.36 inHg
Wind14.6 mph NW
Humidity53%
Visibility—
Dew point28°
Tue, 2750° / 35°0
50 °
Grover, Tuesday, 27 October
Overcast. High 50°, low 35°.
Pressure29.91 inHg
Wind22.2 mph S
Humidity61%
Visibility—
Dew point35°
Wed, 2846° / 42°0.01
46 °
Grover, Wednesday, 28 October
Light rain. High 46°, low 42°.
Pressure29.88 inHg
Wind18.4 mph NW
Humidity69%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2950° / 35°0.07
50 °
Grover, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.07 in
Chance of precipitation25%
Record high68° (2004)
Record low15° (2020)
Fri, 3049° / 36°0.09
49 °
Grover, Friday, 30 October
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.09 in
Chance of precipitation23%
Record high66° (1965)
Record low17° (1991)
Sat, 3149° / 34°0.07
49 °
Grover, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.07 in
Chance of precipitation20%
Record high70° (1990)
Record low19° (2002)
Sun, 0147° / 34°0.05
47 °
Grover, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.05 in
Chance of precipitation23%
Record high69° (1990)
Record low15° (1984)
Mon, 0247° / 33°0.04
47 °
Grover, Monday, 2 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.04 in
Chance of precipitation18%
Record high70° (1978)
Record low9° (1991)
Tue, 0346° / 33°0.04
46 °
Grover, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.04 in
Chance of precipitation20%
Record high69° (1978)
Record low7° (1991)
Wed, 0446° / 31°0.02
46 °
Grover, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high46°
Average low31°
Average precipitation0.02 in
Chance of precipitation10%
Record high69° (2020)
Record low1° (1991)
Thu, 0547° / 33°0.04
47 °
Grover, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.04 in
Chance of precipitation13%
Record high69° (2016)
Record low11° (2003)
Fri, 0646° / 32°0.03
46 °
Grover, Friday, 6 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.03 in
Chance of precipitation15%
Record high72° (2020)
Record low9° (2003)
Sat, 0746° / 31°0.02
46 °
Grover, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high46°
Average low31°
Average precipitation0.02 in
Chance of precipitation12%
Record high69° (2020)
Record low2° (1991)
Sun, 0845° / 31°0.06
45 °
Grover, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high45°
Average low31°
Average precipitation0.06 in
Chance of precipitation22%
Record high69° (1999)
Record low7° (2003)
Mon, 0942° / 30°0.08
42 °
Grover, Monday, 9 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.08 in
Chance of precipitation20%
Record high65° (1999)
Record low11° (2018)
Tue, 1040° / 27°0.06
40 °
Grover, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high40°
Average low27°
Average precipitation0.06 in
Chance of precipitation25%
Record high61° (2016)
Record low6° (1986)
Wed, 1139° / 26°0.02
39 °
Grover, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high39°
Average low26°
Average precipitation0.02 in
Chance of precipitation15%
Record high62° (2005)
Record low4° (1986)
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 Grover, 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 Grover, 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.