Monthly outlook for Lucas, SD: average high 59.2°, average low 43.3°. That is 0.5° above the climate normal for October. Precipitation is expected on 4 days (about 0.9 inches), against a normal of 3 days and 0.9 inches. The warmest day looks like 21 October (73.6°), the coolest 26 October (31.4°).
59.2°/43.3°
Average high / low
+0.5°
Above normal
4 / 3
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 October – 22 October
62.2°
59.5°
+1.5°
23 October – 1 November
54.3°
54.6°
-0.2°
2 November – 11 November
at normal
48.9°
—
October records over 66 years
89.8°9 October 1980All-time high
9.1°27 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Gregory (11 mi).
Wed, 1456° / 41°0.06
56 °
Lucas, Wednesday, 14 October
Rain. High 56°, low 41°.
Pressure30.24 inHg
Wind4.4 mph NE
Humidity62%
Visibility6.2 mi
Dew point40°
Thu, 1558° / 47°0.51
58 °
Lucas, Thursday, 15 October
Rain. High 58°, low 47°.
Pressure30.24 inHg
Wind13.2 mph NW
Humidity76%
Visibility6.2 mi
Dew point46°
Fri, 1652° / 40°0
52 °
Lucas, Friday, 16 October
Clear. High 52°, low 40°.
Pressure30.74 inHg
Wind13.7 mph NW
Humidity56%
Visibility6.2 mi
Dew point32°
Sat, 1767° / 42°0
67 °
Lucas, Saturday, 17 October
Clear. High 67°, low 42°.
Pressure30.18 inHg
Wind18 mph S
Humidity39%
Visibility6.2 mi
Dew point31°
Sun, 1862° / 50°0
62 °
Lucas, Sunday, 18 October
Overcast. High 62°, low 50°.
Pressure29.88 inHg
Wind20.8 mph SW
Humidity45%
Visibility—
Dew point38°
Mon, 1962° / 43°0
62 °
Lucas, Monday, 19 October
Clear. High 62°, low 43°.
Pressure30.15 inHg
Wind11.1 mph S
Humidity41%
Visibility—
Dew point33°
Tue, 2071° / 47°0
71 °
Lucas, Tuesday, 20 October
Clear. High 71°, low 47°.
Pressure30.00 inHg
Wind18.4 mph S
Humidity37%
Visibility—
Dew point37°
Wed, 2174° / 56°0.02
74 °
Lucas, Wednesday, 21 October
Light rain. High 74°, low 56°.
Pressure29.71 inHg
Wind20.2 mph S
Humidity62%
Visibility—
Dew point54°
Thu, 2267° / 53°0.05
67 °
Lucas, Thursday, 22 October
Light rain. High 67°, low 53°.
Pressure29.53 inHg
Wind20.1 mph S
Humidity62%
Visibility—
Dew point48°
Fri, 2363° / 45°0
63 °
Lucas, Friday, 23 October
Clear. High 63°, low 45°.
Pressure29.91 inHg
Wind13 mph W
Humidity37%
Visibility—
Dew point32°
Sat, 2468° / 47°0
68 °
Lucas, Saturday, 24 October
Clear. High 68°, low 47°.
Pressure30.00 inHg
Wind15.7 mph SE
Humidity50%
Visibility—
Dew point42°
Sun, 2551° / 39°0.25
51 °
Lucas, Sunday, 25 October
Rain. High 51°, low 39°.
Pressure30.09 inHg
Wind22.2 mph NW
Humidity81%
Visibility—
Dew point37°
Mon, 2647° / 31°0
47 °
Lucas, Monday, 26 October
Partly cloudy. High 47°, low 31°.
Pressure30.21 inHg
Wind13 mph NW
Humidity43%
Visibility—
Dew point22°
Tue, 2747° / 34°0
47 °
Lucas, Tuesday, 27 October
Overcast. High 47°, low 34°.
Pressure30.30 inHg
Wind7.5 mph N
Humidity49%
Visibility—
Dew point26°
Wed, 2849° / 35°0
49 °
Lucas, Wednesday, 28 October
Partly cloudy. High 49°, low 35°.
Pressure30.15 inHg
Wind7.6 mph SW
Humidity51%
Visibility—
Dew point30°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2954° / 37°0.07
54 °
Lucas, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high54°
Average low37°
Average precipitation0.07 in
Chance of precipitation27%
Record high74° (1978)
Record low16° (1991)
Fri, 3052° / 37°0.07
52 °
Lucas, Friday, 30 October
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.07 in
Chance of precipitation27%
Record high76° (1968)
Record low13° (1991)
Sat, 3152° / 35°0.05
52 °
Lucas, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high52°
Average low35°
Average precipitation0.05 in
Chance of precipitation17%
Record high83° (2016)
Record low12° (2002)
Sun, 0151° / 35°0.04
51 °
Lucas, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.04 in
Chance of precipitation17%
Record high77° (1990)
Record low8° (2002)
Mon, 0251° / 35°0.06
51 °
Lucas, Monday, 2 November
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.06 in
Chance of precipitation20%
Record high75° (2005)
Record low7° (1991)
Tue, 0350° / 35°0.05
50 °
Lucas, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.05 in
Chance of precipitation18%
Record high73° (1978)
Record low5° (1991)
Wed, 0451° / 33°0.01
51 °
Lucas, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high51°
Average low33°
Average precipitation0.01 in
Chance of precipitation8%
Record high73° (1978)
Record low-2° (1991)
Thu, 0551° / 34°0.03
51 °
Lucas, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high51°
Average low34°
Average precipitation0.03 in
Chance of precipitation13%
Record high74° (2001)
Record low10° (2003)
Fri, 0650° / 33°0.03
50 °
Lucas, Friday, 6 November
Climate normal for this date — 60-year average.
Average high50°
Average low33°
Average precipitation0.03 in
Chance of precipitation13%
Record high77° (2020)
Record low2° (2003)
Sat, 0751° / 33°0.03
51 °
Lucas, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high51°
Average low33°
Average precipitation0.03 in
Chance of precipitation13%
Record high74° (2020)
Record low0° (1991)
Sun, 0849° / 33°0.06
49 °
Lucas, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high49°
Average low33°
Average precipitation0.06 in
Chance of precipitation13%
Record high74° (1999)
Record low5° (1991)
Mon, 0946° / 32°0.08
46 °
Lucas, Monday, 9 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.08 in
Chance of precipitation22%
Record high69° (2001)
Record low10° (2018)
Tue, 1046° / 28°0.04
46 °
Lucas, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high46°
Average low28°
Average precipitation0.04 in
Chance of precipitation22%
Record high68° (1989)
Record low-2° (1986)
Wed, 1144° / 28°0.05
44 °
Lucas, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.05 in
Chance of precipitation23%
Record high74° (2005)
Record low-7° (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 Lucas, 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 Lucas, 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.