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Sun Prairie, WI

15°F
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Sun Prairie

Wisconsin

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Sun Prairie, WI Weather
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Winter Center
Today WinterCast

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WinterCast

Trace - 0.05 in

Sun, 1/4, 5:00 PM - Sun, 1/4, 6:00 PM

Ice

2 AM

12°
RealFeel® 6°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 0%
Chevron down
Intermittent clouds

WindWNW 7 mph

Air QualityFair

Wind Gusts8 mph

Humidity79%

Indoor Humidity21% (Very Dry)

Dew Point7° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover66%

Visibility8 mi

Cloud Ceiling2500 ft

3 AM

11°
RealFeel® 5°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 0%
Chevron down
Mostly cloudy

WindWNW 7 mph

Air QualityFair

Wind Gusts8 mph

Humidity80%

Indoor Humidity20% (Very Dry)

Dew Point6° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover76%

Visibility8 mi

Cloud Ceiling2500 ft

4 AM

10°
RealFeel® 4°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 0%
Chevron down
Mostly cloudy

WindWNW 7 mph

Air QualityFair

Wind Gusts8 mph

Humidity83%

Indoor Humidity20% (Very Dry)

Dew Point6° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover76%

Visibility8 mi

Cloud Ceiling2500 ft

5 AM

9°
RealFeel® 3°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 0%
Chevron down
Mostly cloudy

WindWNW 6 mph

Air QualityFair

Wind Gusts8 mph

Humidity86%

Indoor Humidity20% (Very Dry)

Dew Point5° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover76%

Visibility8 mi

Cloud Ceiling2500 ft

6 AM

8°
RealFeel® 2°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 0%
Chevron down
Mostly cloudy

WindWNW 6 mph

Air QualityFair

Wind Gusts8 mph

Humidity91%

Indoor Humidity20% (Very Dry)

Dew Point6° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover76%

Visibility8 mi

Cloud Ceiling2500 ft

7 AM

7°
RealFeel® 1°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 0%
Chevron down
Mostly clear

WindWNW 6 mph

Air QualityFair

Wind Gusts8 mph

Humidity92%

Indoor Humidity20% (Very Dry)

Dew Point5° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover14%

Visibility10 mi

Cloud Ceiling30000 ft

8 AM

8°
RealFeel® 2°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 0%
Chevron down
Sunny

RealFeel Shade™2°

WindWNW 7 mph

Air QualityFair

Max UV Index0.3 (Low)

Wind Gusts9 mph

Humidity87%

Indoor Humidity20% (Very Dry)

Dew Point5° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover6%

Visibility10 mi

Cloud Ceiling30000 ft

9 AM

10°
RealFeel® 5°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 0%
Chevron down
Sunny

RealFeel Shade™3°

WindNW 7 mph

Air QualityFair

Max UV Index1.0 (Low)

Wind Gusts10 mph

Humidity81%

Indoor Humidity20% (Very Dry)

Dew Point5° F

AccuLumen Brightness Index™7 (Bright)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

10 AM

12°
RealFeel® 9°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
rain drop 0%
Chevron down
Sunny

RealFeel Shade™5°

WindNW 7 mph

Air QualityFair

Max UV Index1.6 (Low)

Wind Gusts12 mph

Humidity76%

Indoor Humidity20% (Very Dry)

Dew Point6° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

11 AM

15°
RealFeel® 12°
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
Sunny

RealFeel Shade™8°

WindNW 7 mph

Air QualityFair

Max UV Index1.9 (Low)

Wind Gusts13 mph

Humidity70%

Indoor Humidity21% (Very Dry)

Dew Point7° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

12 PM

16°
RealFeel® 14°
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
Sunny

RealFeel Shade™9°

WindNW 7 mph

Air QualityFair

Max UV Index2.0 (Low)

Wind Gusts15 mph

Humidity67%

Indoor Humidity22% (Very Dry)

Dew Point7° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover0%

Visibility10 mi

Cloud Ceiling30000 ft

1 PM

18°
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 0%
Chevron down
Sunny

RealFeel Shade™11°

WindNW 7 mph

Air QualityFair

Max UV Index1.9 (Low)

Wind Gusts14 mph

Humidity64%

Indoor Humidity22% (Very Dry)

Dew Point8° F

AccuLumen Brightness Index™10 (Very Bright)

Cloud Cover1%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

19°
RealFeel® 17°
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
Sunny

RealFeel Shade™13°

WindWNW 7 mph

Air QualityFair

Max UV Index1.6 (Low)

Wind Gusts14 mph

Humidity62%

Indoor Humidity22% (Very Dry)

Dew Point8° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover5%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

20°
RealFeel® 17°
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 sunny

RealFeel Shade™15°

WindWNW 7 mph

Air QualityFair

Max UV Index1.0 (Low)

Wind Gusts14 mph

Humidity59%

Indoor Humidity22% (Very Dry)

Dew Point8° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover13%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

19°
RealFeel® 15°
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 sunny

RealFeel Shade™15°

WindWNW 6 mph

Air QualityFair

Max UV Index0.3 (Low)

Wind Gusts13 mph

Humidity63%

Indoor Humidity22% (Very Dry)

Dew Point8° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover28%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

18°
RealFeel® 15°
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
Partly cloudy

WindWNW 6 mph

Air QualityFair

Wind Gusts9 mph

Humidity66%

Indoor Humidity23% (Very Dry)

Dew Point8° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover44%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

17°
RealFeel® 14°
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
Intermittent clouds

WindWNW 5 mph

Air QualityFair

Wind Gusts6 mph

Humidity69%

Indoor Humidity22% (Very Dry)

Dew Point8° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover57%

Visibility10 mi

Cloud Ceiling18000 ft

7 PM

15°
RealFeel® 13°
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
Intermittent clouds

WindNW 5 mph

Air QualityFair

Wind Gusts6 mph

Humidity72%

Indoor Humidity22% (Very Dry)

Dew Point8° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover63%

Visibility10 mi

Cloud Ceiling18000 ft

8 PM

15°
RealFeel® 12°
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
Intermittent clouds

WindNW 6 mph

Air QualityFair

Wind Gusts6 mph

Humidity74%

Indoor Humidity22% (Very Dry)

Dew Point8° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover64%

Visibility10 mi

Cloud Ceiling18000 ft

9 PM

15°
RealFeel® 12°
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
Intermittent clouds

WindNW 6 mph

Air QualityFair

Wind Gusts6 mph

Humidity71%

Indoor Humidity22% (Very Dry)

Dew Point8° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover66%

Visibility10 mi

Cloud Ceiling18000 ft

10 PM

16°
RealFeel® 13°
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
Intermittent clouds

WindNW 5 mph

Air QualityFair

Wind Gusts6 mph

Humidity69%

Indoor Humidity22% (Very Dry)

Dew Point7° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling16900 ft

11 PM

15°
RealFeel® 13°
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
Intermittent clouds

WindNW 5 mph

Air QualityFair

Wind Gusts6 mph

Humidity70%

Indoor Humidity22% (Very Dry)

Dew Point7° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling15800 ft

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Weather Near Sun Prairie:

  • Janesville, WI
  • Madison, WI
  • Rockford, IL
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