Lucas, SD Weather Forecast & Alerts

Current conditions, 5-day forecast, and active NWS weather alerts for Lucas, SD.

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Current Conditions — Lucas, SD

WINNER (KICR)

Light Rain and Fog/Mist

42.8 F
Humidity:100%
Wind Speed: 12.7 mph
Barometer:29.69 in
Dewpoint:42.8 F
Visibility:1.75 mi
Precip:--
Heat Index:NA
Wind Chill:36.1 F
Apr 27 2026, 03:00 AM CDT
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5-Day Forecast — Lucas, SD

Monday

High 46 °F
Rain Showers
Monday
Night
Low 32 °F
Mostly Cloudy
Tuesday

High 48 °F
Chance of Rain Showers
Tuesday
Night
Low 33 °F
Mostly Cloudy
Wednesday

High 59 °F
Partly Sunny
Wednesday
Night
Low 35 °F
Partly Cloudy
Thursday

High 57 °F
Slight Chance of Showers
Thursday
Night
Low 35 °F
Mostly Clear
Friday

High 64 °F
Mostly Sunny

Detailed Forecast — Lucas, SD

Monday
Rain Showers. High near 46°F. Wind 22 to 31 mph, with gusts as high as 43 mph.
Monday Night
Mostly Cloudy. Low around 32°F. Wind 8 to 21 mph, with gusts as high as 32 mph.
Tuesday
Chance of Rain Showers. High near 48°F. Wind 7 to 9 mph, with gusts as high as 14 mph.
Tuesday Night
Mostly Cloudy. Low around 33°F. Wind 6 to 7 mph, with gusts as high as 12 mph.
Wednesday
Partly Sunny. High near 59°F. Wind 9 to 13 mph, with gusts as high as 20 mph.
Wednesday Night
Partly Cloudy. Low around 35°F. Wind around 6 mph, with gusts as high as 9 mph.
Thursday
Slight Chance of Showers. High near 57°F. Wind 12 to 14 mph, with gusts as high as 21 mph.
Thursday Night
Mostly Clear. Low around 35°F. Wind around 5 mph, with gusts as high as 6 mph.
Friday
Mostly Sunny. High near 64°F. Wind 7 to 8 mph, with gusts as high as 13 mph.
Friday Night
Mostly Clear. Low around 41°F. Wind around 12 mph, with gusts as high as 20 mph.
Saturday
Mostly Sunny. High near 71°F. Wind 13 to 15 mph, with gusts as high as 22 mph.
Saturday Night
Partly Cloudy. Low around 44°F. Wind around 12 mph, with gusts as high as 18 mph.
Sunday
Partly Sunny. High near 71°F. Wind 12 to 14 mph, with gusts as high as 22 mph.
SD Radar
Current Radar • SD
Day 1 Outlook • April 27, 2026

Observation History — Lucas, SD

Time Wind
(mph)		 Vis
(mi)		 Weather Precip (in) Temperature (F) Relative
Humidity		 Wind
Chill
(F)		 Heat
Index
(F)		 Pressure
Air Dwpt altimeter
(in)		 sea level
(mb)
03:00 AM CDT 12.7 1.75 Light Rain and Fog/Mist -- 42.8 42.8 100% 36.1 NA 29.69 1005.4
02:45 AM CDT 11.5 1.50 Fog/Mist -- 42.8 42.8 100% 36.5 NA 29.68 1005.1
02:35 AM CDT 11.5 2.00 Light Rain and Fog/Mist -- 42.8 42.8 100% 36.5 NA 29.68 1005.1
02:30 AM CDT 11.5 2.00 Light Rain and Fog/Mist -- 42.8 42.8 100% 36.5 NA 29.68 1005.1
02:20 AM CDT 11.5 2.00 Fog/Mist -- 42.8 42.8 100% 36.5 NA 29.68 1005.1
02:15 AM CDT 11.5 1.50 Fog/Mist -- 42.8 42.8 100% 36.5 NA 29.68 1005.1
02:10 AM CDT 9.2 1.75 Light Rain and Fog/Mist -- 42.8 42.8 100% 37.4 NA 29.69 1005.4
02:05 AM CDT 10.4 2.50 Light Rain and Fog/Mist -- 42.8 42.8 100% 37.0 NA 29.69 1005.4
01:50 AM CDT NW 6.9 5.00 Light Rain and Fog/Mist -- 42.8 42.8 100% 38.5 NA 29.70 1005.8
01:45 AM CDT 8.1 5.00 Light Rain and Fog/Mist -- 42.8 42.8 100% 37.9 NA 29.70 1005.8
01:35 AM CDT 8.1 6.00 Light Rain and Fog/Mist -- 42.8 42.8 100% 37.9 NA 29.70 1005.8
01:25 AM CDT 6.9 4.00 Light Rain and Fog/Mist -- 42.8 42.8 100% 38.5 NA 29.70 1005.8
01:20 AM CDT 8.1 3.50 Light Rain and Fog/Mist -- 42.8 42.8 100% 37.9 NA 29.70 1005.8
01:15 AM CDT 6.9 2.50 Light Rain and Fog/Mist -- 42.8 42.8 100% 38.5 NA 29.70 1005.8
01:10 AM CDT 8.1 1.75 Light Rain and Fog/Mist -- 42.8 42.8 100% 37.9 NA 29.70 1005.8
01:00 AM CDT 9.2 1.50 Light Rain and Fog/Mist -- 42.8 42.8 100% 37.4 NA 29.70 1005.8
12:45 AM CDT 9.2 1.50 Light Rain and Fog/Mist -- 42.8 42.8 100% 37.4 NA 29.71 1006.1
12:35 AM CDT NW 8.1 1.00 Light Rain and Fog/Mist -- 44.6 42.8 93% 40.1 NA 29.71 1006.1
12:25 AM CDT NW 6.9 2.50 Light Rain and Fog/Mist -- 44.6 44.6 100% 40.6 NA 29.71 1006.1
12:20 AM CDT 4.6 3.00 Light Rain and Fog/Mist -- 44.6 44.6 100% 42.1 NA 29.71 1006.1
12:10 AM CDT 5.7 3.00 Light Rain and Fog/Mist -- 44.6 42.8 93% 41.4 NA 29.71 1006.1
12:00 AM CDT 6.9 3.50 Light Rain and Fog/Mist -- 44.6 42.8 93% 40.6 NA 29.71 1006.1
11:50 PM CDT 4.6 4.00 Fog/Mist -- 44.6 44.6 100% 42.1 NA 29.72 1006.4
11:35 PM CDT 5.7 5.00 Fog/Mist -- 44.6 44.6 100% 41.4 NA 29.72 1006.4

Regional Weather Observation

WINNER (KICR)

Light Rain and Fog/Mist
42.8 F

CHAMBERLAIN (K9V9)

Cloudy
NULL F

MITCHELL (KMHE)

Cloudy
46.4 F

AINSWORTH MUNICI (KANW)

Fog/Mist
44.2 F

VALENTINE (KVTN)

Cloudy
42.8 F

O NEILL (KONL)

Rain
46.6 F
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