SPARTA, WI 54656 Weather Forecast & Current Conditions

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MCCOY AAF, WI
Current Weather

3:55 AM CDT AUG 24, 2026
Clear
45°F
Feels Like: 45°F
Dewpoint: 43°F
Rel. Hum.: 93%
Visibility: 10 miles
Wind: Calm
Pressure: 30.06 inches
Last 72 hours

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SPARTA, WI 54656
Weather Forecast

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TODAY
Patchy fog this morning. Mostly sunny. Highs around 80. Southeast winds around 5 mph, becoming light winds this afternoon.
TONIGHT
Partly cloudy. Warmer with lows in the mid 50s. South winds around 5 mph.
TUESDAY
Partly sunny. Highs in the lower 80s. Southwest winds 10 to 15 mph.
TUESDAY NIGHT
Partly cloudy. A chance of showers and thunderstorms in the evening. Lows in the lower 60s. Southwest winds 10 to 15 mph. Chance of rain 50 percent.
WEDNESDAY
Mostly sunny. Highs in the lower 80s. West winds 10 to 15 mph.
WEDNESDAY NIGHT AND THURSDAY
Mostly clear. Lows in the upper 50s. Highs in the lower 80s.
THURSDAY NIGHT
Mostly clear. Lows in the lower 50s.
FRIDAY
Mostly sunny. Highs in the lower 80s.
FRIDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers. Lows in the upper 50s. Chance of rain 40 percent.
SATURDAY
Mostly cloudy in the morning, then becoming partly sunny. A chance of showers and thunderstorms. Highs in the lower 80s. Chance of rain 50 percent.
SATURDAY NIGHT
Showers likely. Lows in the lower 60s. Chance of rain 60 percent.
SUNDAY
Mostly cloudy in the morning, then becoming mostly sunny. A chance of showers. Highs in the lower 80s. Chance of rain 50 percent.

Visible Weather Satellite
SPARTA, WI 54656
Infrared Weather Satellite
SPARTA, WI 54656
NEXRAD Weather Radar
SPARTA, WI 54656

MCCOY AAF, WI 3 hourly weather forecast

weather forecast created  8:00 PM EDT  8/23/2026
Monday
24 AUG 2026
SPARTA, WI 54656 weather forecast Day 1, 0 hours 1 AM 54° 54° Partly Cloudy 0%

0% Thunder
( 1% severe)
  CALM 80% 48°
Low 49° SPARTA, WI 54656 weather forecast Day 1, 3 hours 4 AM 51° 51° Partly Cloudy   CALM 80% 45°
High 81° SPARTA, WI 54656 weather forecast Day 1, 6 hours 7 AM 50° 50° Mostly Cloudy 0%

0% Thunder
( 1% severe)
  CALM 86% 46°

Partly Cloudy



SPARTA, WI 54656 weather forecast Day 1, 9 hours 10 AM 67° 67° Partly Cloudy   CALM 56% 51°
SPARTA, WI 54656 weather forecast Day 1, 12 hours 1 PM 76° 78° Partly Cloudy 2%

0% Thunder
( 1% severe)
  CALM 46% 54°
SPARTA, WI 54656 weather forecast Day 1, 15 hours 4 PM 78° 79° Partly Cloudy   CALM 45% 55°
SPARTA, WI 54656 weather forecast Day 1, 18 hours 7 PM 75° 75° Partly Cloudy 1%

0% Thunder
( 3% severe)
  CALM 55% 58°
SPARTA, WI 54656 weather forecast Day 1, 21 hours 10 PM 62° 63° Clear   CALM 81% 56°
Tuesday
25 AUG 2026
SPARTA, WI 54656 weather forecast Day 2, 0 hours 1 AM 59° 60° Partly Cloudy 3%

0% Thunder
( 4% severe)
  CALM 83% 54°
Low 54° SPARTA, WI 54656 weather forecast Day 2, 3 hours 4 AM 58° 59° Mostly Cloudy   CALM 87% 54°
High 84° SPARTA, WI 54656 weather forecast Day 2, 6 hours 7 AM 59° 60° Mostly Cloudy 2%

0% Thunder
( 3% severe)
  CALM 90% 56°

Mostly Cloudy



SPARTA, WI 54656 weather forecast Day 2, 9 hours 10 AM 72° 72° Mostly Cloudy   CALM 68% 61°
SPARTA, WI 54656 weather forecast Day 2, 12 hours 1 PM 79° 80° Partly Cloudy 9%

0% Thunder
( 13% severe)
SSW   8 54% 61°
SPARTA, WI 54656 weather forecast Day 2, 15 hours 4 PM 81° 82° Mostly Cloudy SSW   10 51% 61°
SPARTA, WI 54656 weather forecast Day 2, 18 hours 7 PM 77° 79° Mostly Cloudy 23%
RAIN
.1–.25 in
0% Thunder
( 30% severe)
SSW   9 62% 63°
SPARTA, WI 54656 weather forecast Day 2, 21 hours 10 PM 68° 68° Partly Cloudy SSW   5 87% 64°

MCCOY AAF, WI extended weather forecast

Wednesday
26 AUG 2026
Thursday
27 AUG 2026
Friday
28 AUG 2026
Saturday
29 AUG 2026
Sunday
30 AUG 2026
Low 55° Low 49° Low 43° Low 55° Low 56°
High 84° High 83° High 76° High 82° High 79°
SPARTA, WI 54656 weather forecast Day 3 SPARTA, WI 54656 weather forecast Day 4 SPARTA, WI 54656 weather forecast Day 5 SPARTA, WI 54656 weather forecast Day 6 SPARTA, WI 54656 weather forecast Day 7
Partly Cloudy
42% Rain
Partly Cloudy
11% Rain
Partly Cloudy
32% Rain
Overcast
60% Rain
Mostly Cloudy
46% Rain
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