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Severe weather outbreak to peak Friday with tornadoes. Click for the forecast. Chevron right

Lyman, SD

57°F
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Lyman

South Dakota

57°
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Lyman, SD Weather
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Chevron right

12 AM

55°
RealFeel® 48°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 37%
Chevron down
Mostly cloudy

WindNNW 17 mph

Air QualityFair

Wind Gusts27 mph

Humidity67%

Indoor Humidity43% (Ideal Humidity)

Dew Point45° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover80%

Visibility10 mi

Cloud Ceiling23100 ft

1 AM

53°
RealFeel® 43°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 27%
Chevron down
Cloudy

WindNNW 22 mph

Air QualityFair

Wind Gusts27 mph

Humidity71%

Indoor Humidity41% (Ideal Humidity)

Dew Point44° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling19800 ft

2 AM

51°
RealFeel® 39°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 13%
Chevron down
Cloudy

WindNNW 25 mph

Air QualityFair

Wind Gusts31 mph

Humidity66%

Indoor Humidity35% (Slightly Dry)

Dew Point40° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling16500 ft

3 AM

47°
RealFeel® 34°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 13%
Chevron down
Cloudy

WindNNW 24 mph

Air QualityFair

Wind Gusts31 mph

Humidity68%

Indoor Humidity31% (Slightly Dry)

Dew Point37° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling13300 ft

4 AM

44°
RealFeel® 30°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 13%
Chevron down
Cloudy

WindNNW 23 mph

Air QualityExcellent

Wind Gusts33 mph

Humidity70%

Indoor Humidity43% (Slightly Dry)

Dew Point34° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling9700 ft

5 AM

41°
RealFeel® 25°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 13%
Chevron down
Cloudy

WindNNW 24 mph

Air QualityExcellent

Wind Gusts35 mph

Humidity76%

Indoor Humidity42% (Slightly Dry)

Dew Point34° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling6100 ft

6 AM

38°
RealFeel® 21°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
rain drop 13%
Chevron down
Cloudy

WindNNW 25 mph

Air QualityExcellent

Wind Gusts37 mph

Humidity82%

Indoor Humidity41% (Slightly Dry)

Dew Point33° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling2500 ft

7 AM

36°
RealFeel® 18°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
rain drop 11%
Chevron down
Cloudy

RealFeel Shade™18°

WindNNW 27 mph

Air QualityExcellent

Max UV Index0.1 (Low)

Wind Gusts37 mph

Humidity86%

Indoor Humidity40% (Slightly Dry)

Dew Point32° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling2300 ft

8 AM

34°
RealFeel® 16°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
rain drop 7%
Chevron down
Cloudy

RealFeel Shade™16°

WindNNW 27 mph

Air QualityExcellent

Max UV Index0.4 (Low)

Wind Gusts39 mph

Humidity87%

Indoor Humidity39% (Slightly Dry)

Dew Point31° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling2100 ft

9 AM

35°
RealFeel® 18°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
rain drop 7%
Chevron down
Cloudy

RealFeel Shade™18°

WindNNW 27 mph

Air QualityExcellent

Max UV Index0.6 (Low)

Wind Gusts40 mph

Humidity79%

Indoor Humidity38% (Slightly Dry)

Dew Point30° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling2000 ft

10 AM

37°
RealFeel® 20°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
rain drop 7%
Chevron down
Cloudy

RealFeel Shade™20°

WindNNW 27 mph

Air QualityExcellent

Max UV Index1.0 (Low)

Wind Gusts41 mph

Humidity72%

Indoor Humidity37% (Dry)

Dew Point28° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover96%

Visibility10 mi

Cloud Ceiling3000 ft

11 AM

39°
RealFeel® 23°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
rain drop 7%
Chevron down
Cloudy

RealFeel Shade™22°

WindNNW 27 mph

Air QualityExcellent

Max UV Index1.5 (Low)

Wind Gusts43 mph

Humidity62%

Indoor Humidity36% (Dry)

Dew Point27° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover92%

Visibility10 mi

Cloud Ceiling4100 ft

12 PM

41°
RealFeel® 28°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 7%
Chevron down
Cloudy

RealFeel Shade™26°

WindNNW 25 mph

Air QualityFair

Max UV Index2.1 (Low)

Wind Gusts44 mph

Humidity53%

Indoor Humidity35% (Dry)

Dew Point26° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling5200 ft

1 PM

44°
RealFeel® 31°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 6%
Chevron down
Cloudy

RealFeel Shade™29°

WindNNW 25 mph

Air QualityFair

Max UV Index2.3 (Low)

Wind Gusts44 mph

Humidity46%

Indoor Humidity34% (Dry)

Dew Point24° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover91%

Visibility10 mi

Cloud Ceiling5800 ft

2 PM

45°
RealFeel® 35°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 2%
Chevron down
Cloudy

RealFeel Shade™32°

WindNNW 21 mph

Air QualityFair

Max UV Index1.9 (Low)

Wind Gusts37 mph

Humidity42%

Indoor Humidity33% (Dry)

Dew Point23° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover96%

Visibility10 mi

Cloud Ceiling6400 ft

3 PM

46°
RealFeel® 35°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 2%
Chevron down
Cloudy

RealFeel Shade™33°

WindNW 22 mph

Air QualityFair

Max UV Index1.3 (Low)

Wind Gusts40 mph

Humidity39%

Indoor Humidity32% (Dry)

Dew Point22° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling7100 ft

4 PM

46°
RealFeel® 34°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 2%
Chevron down
Cloudy

RealFeel Shade™33°

WindNW 23 mph

Air QualityFair

Max UV Index1.0 (Low)

Wind Gusts43 mph

Humidity38%

Indoor Humidity32% (Dry)

Dew Point22° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling7100 ft

5 PM

47°
RealFeel® 36°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 2%
Chevron down
Cloudy

RealFeel Shade™36°

WindNW 21 mph

Air QualityFair

Max UV Index0.7 (Low)

Wind Gusts41 mph

Humidity35%

Indoor Humidity31% (Dry)

Dew Point20° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling7100 ft

6 PM

46°
RealFeel® 35°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 2%
Chevron down
Cloudy

RealFeel Shade™35°

WindNW 17 mph

Air QualityFair

Max UV Index0.4 (Low)

Wind Gusts39 mph

Humidity35%

Indoor Humidity30% (Dry)

Dew Point19° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling7100 ft

7 PM

44°
RealFeel® 34°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 1%
Chevron down
Cloudy

RealFeel Shade™34°

WindNW 15 mph

Air QualityFair

Max UV Index0.2 (Low)

Wind Gusts35 mph

Humidity35%

Indoor Humidity29% (Very Dry)

Dew Point18° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover98%

Visibility10 mi

Cloud Ceiling14700 ft

8 PM

43°
RealFeel® 29°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 0%
Chevron down
Cloudy

RealFeel Shade™29°

WindNW 21 mph

Air QualityFair

Max UV Index0.0 (Low)

Wind Gusts39 mph

Humidity36%

Indoor Humidity29% (Very Dry)

Dew Point17° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover93%

Visibility10 mi

Cloud Ceiling22400 ft

9 PM

40°
RealFeel® 26°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
rain drop 0%
Chevron down
Mostly cloudy

WindNW 21 mph

Air QualityFair

Wind Gusts33 mph

Humidity39%

Indoor Humidity29% (Very Dry)

Dew Point17° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover78%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

38°
RealFeel® 23°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
rain drop 0%
Chevron down
Mostly cloudy

WindNW 21 mph

Air QualityFair

Wind Gusts24 mph

Humidity42%

Indoor Humidity28% (Very Dry)

Dew Point17° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

36°
RealFeel® 20°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
rain drop 0%
Chevron down
Mostly cloudy

WindNW 20 mph

Air QualityFair

Wind Gusts25 mph

Humidity46%

Indoor Humidity28% (Very Dry)

Dew Point17° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Lyman

AccuWeather's hourly forecast for Lyman provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 55° with a RealFeel® of 48°, mostly cloudy with a 37% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

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