Monthly outlook for Lucas, SD: average high 65.7°, average low 47.6°. That is 3.5° above the climate normal for October. Precipitation is expected on 1 day (about 0.8 inches), against a normal of 3 days and 0.9 inches. The warmest day looks like 24 October (78.2°), the coolest 17 October (35.1°).
65.7°/47.6°
Average high / low
+3.5°
Above normal
1 / 3
Wet days / normal
0.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
64.9°
60.4°
+2.5°
21 October – 30 October
67°
56.2°
+6°
31 October – 9 November
at normal
50.2°
—
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).
Mon, 1267° / 49°0
67 °
Lucas, Monday, 12 October
Clear. High 67°, low 49°.
Pressure29.71 inHg
Wind11.3 mph NW
Humidity68%
Visibility6.2 mi
Dew point53°
Tue, 1355° / 49°0
55 °
Lucas, Tuesday, 13 October
Overcast. High 55°, low 49°.
Pressure30.03 inHg
Wind8 mph N
Humidity71%
Visibility6.2 mi
Dew point42°
Wed, 1459° / 44°0
59 °
Lucas, Wednesday, 14 October
Clear. High 59°, low 44°.
Pressure30.24 inHg
Wind7.4 mph NE
Humidity58%
Visibility6.2 mi
Dew point39°
Thu, 1555° / 49°0.75
55 °
Lucas, Thursday, 15 October
Rain. High 55°, low 49°.
Pressure30.24 inHg
Wind16.9 mph NW
Humidity77%
Visibility—
Dew point45°
Fri, 1654° / 42°0
54 °
Lucas, Friday, 16 October
Clear. High 54°, low 42°.
Pressure30.71 inHg
Wind14.7 mph N
Humidity59%
Visibility—
Dew point35°
Sat, 1761° / 35°0
61 °
Lucas, Saturday, 17 October
Partly cloudy. High 61°, low 35°.
Pressure30.33 inHg
Wind22.6 mph S
Humidity19%
Visibility—
Dew point11°
Sun, 1876° / 48°0
76 °
Lucas, Sunday, 18 October
Overcast. High 76°, low 48°.
Pressure29.91 inHg
Wind23 mph S
Humidity25%
Visibility—
Dew point32°
Mon, 1974° / 49°0
74 °
Lucas, Monday, 19 October
Overcast. High 74°, low 49°.
Pressure30.06 inHg
Wind15.3 mph SE
Humidity30%
Visibility—
Dew point34°
Tue, 2075° / 51°0
75 °
Lucas, Tuesday, 20 October
Clear. High 75°, low 51°.
Pressure29.80 inHg
Wind19.8 mph S
Humidity36%
Visibility—
Dew point38°
Wed, 2169° / 52°0
69 °
Lucas, Wednesday, 21 October
Clear. High 69°, low 52°.
Pressure30.00 inHg
Wind13.6 mph W
Humidity36%
Visibility—
Dew point37°
Thu, 2269° / 51°0.02
69 °
Lucas, Thursday, 22 October
Light rain. High 69°, low 51°.
Pressure30.06 inHg
Wind10.3 mph S
Humidity41%
Visibility—
Dew point40°
Fri, 2369° / 49°0
69 °
Lucas, Friday, 23 October
Clear. High 69°, low 49°.
Pressure30.15 inHg
Wind7.4 mph S
Humidity49%
Visibility—
Dew point44°
Sat, 2478° / 52°0
78 °
Lucas, Saturday, 24 October
Clear. High 78°, low 52°.
Pressure29.97 inHg
Wind17.7 mph S
Humidity42%
Visibility—
Dew point48°
Sun, 2561° / 46°0
61 °
Lucas, Sunday, 25 October
Partly cloudy. High 61°, low 46°.
Pressure30.18 inHg
Wind20.3 mph NW
Humidity29%
Visibility—
Dew point26°
Mon, 2656° / 38°0
56 °
Lucas, Monday, 26 October
Overcast. High 56°, low 38°.
Pressure30.12 inHg
Wind11.5 mph NW
Humidity32%
Visibility—
Dew point21°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2756° / 38°0.04
56 °
Lucas, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high56°
Average low38°
Average precipitation0.04 in
Chance of precipitation17%
Record high76° (2016)
Record low9° (2020)
Wed, 2855° / 37°0.06
55 °
Lucas, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high55°
Average low37°
Average precipitation0.06 in
Chance of precipitation15%
Record high78° (2016)
Record low21° (2023)
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)
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.