SPARTA, WI 54656 Weather Forecast & Current Conditions
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  54656 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)
 CURRENT WEATHER

MCCOY AAF, WI
Current Weather
3:55 AM CDT SEP 26, 2026
Clear
Mist
50°F
Feels Like: 50°F
Dewpoint: 50°F
Rel. Hum.: 100%
Visibility: 4 miles
Wind: Calm
Pressure: 30.20 inches
Last 72 hours

Local Area Snow Depth

Wisconsin Current Weather

Wisconsin MOS Forecast Weather


Weather Map

(Automated weather data from NWS/FAA)
  54656 WEATHER FORECAST
10-Day model forecast maps
2026 Hurricanes

SPARTA, WI 54656
Weather Forecast

 Snowfall Forecast pages
Snow Depth pages
TODAY
Patchy fog this morning. Partly sunny. Highs in the upper 60s. Southeast winds 5 to 10 mph.
TONIGHT
Mostly cloudy. A slight chance of showers after midnight. Lows in the lower 50s. Light winds. Chance of rain 20 percent.
SUNDAY
Mostly cloudy in the morning, then becoming partly sunny. Highs in the mid 60s. Light and variable winds.
SUNDAY NIGHT
Mostly cloudy. Lows in the mid 50s. Light and variable winds.
MONDAY
Mostly sunny. Highs in the lower 70s. Light and variable winds.
MONDAY NIGHT
Partly cloudy. Lows in the lower 50s.
TUESDAY
Partly sunny in the morning, then becoming mostly cloudy. A 50 percent chance of showers. Highs in the upper 60s.
TUESDAY NIGHT
Showers likely. Lows in the mid 50s. Chance of rain 70 percent.
WEDNESDAY THROUGH THURSDAY
Mostly cloudy with a 50 percent chance of showers. Highs in the upper 60s. Lows in the mid 50s.
THURSDAY NIGHT
Mostly cloudy with a 40 percent chance of showers. Lows in the upper 40s.
FRIDAY
Partly sunny. Highs in the mid 60s.

  54656 WEATHER SATELLITE LOOPS
Visible Weather Satellite
SPARTA, WI 54656
Infrared Weather Satellite
SPARTA, WI 54656
  54656 WEATHER RADAR LOOP
NEXRAD Weather Radar
SPARTA, WI 54656
 MOS COMPUTER WEATHER FORECAST

MCCOY AAF, WI 3 hourly weather forecast
weather forecast created  8:00 PM EDT  9/25/2026
Saturday
26 SEP 2026		 SPARTA, WI 54656 weather forecast Day 1, 0 hours 1 AM 54° 54° Mostly Cloudy 0%

 0% Thunder
( 1% severe)		   CALM 96% 53°
Low 46° SPARTA, WI 54656 weather forecast Day 1, 3 hours 4 AM 48° 47° Partly Cloudy   CALM 96% 47°
High 70° SPARTA, WI 54656 weather forecast Day 1, 6 hours 7 AM 47° 46° Mostly Cloudy 0%

 0% Thunder
( 0% severe)		   CALM 89% 44°

Mostly Cloudy



 SPARTA, WI 54656 weather forecast Day 1, 9 hours 10 AM 58° 58° Mostly Cloudy SE   3 80% 52°
SPARTA, WI 54656 weather forecast Day 1, 12 hours 1 PM 66° 66° Mostly Cloudy 4%

 0% Thunder
( 0% severe)		 SE   7 56% 50°
SPARTA, WI 54656 weather forecast Day 1, 15 hours 4 PM 66° 66° Mostly Cloudy SE   6 58% 51°
SPARTA, WI 54656 weather forecast Day 1, 18 hours 7 PM 60° 61° Mostly Cloudy 10%
RAIN
<.01 in		 0% Thunder
( 1% severe)		   CALM 81% 54°
SPARTA, WI 54656 weather forecast Day 1, 21 hours 10 PM 56° 56° Mostly Cloudy   CALM 86% 52°
Sunday
27 SEP 2026		 SPARTA, WI 54656 weather forecast Day 2, 0 hours 1 AM 54° 54° Mostly Cloudy 23%
RAIN
<.01 in		 0% Thunder
( 4% severe)		   CALM 86% 50°
Low 52° SPARTA, WI 54656 weather forecast Day 2, 3 hours 4 AM 53° 53° Mostly Cloudy   CALM 83% 48°
High 67° SPARTA, WI 54656 weather forecast Day 2, 6 hours 7 AM 53° 53° Mostly Cloudy 9%

 0% Thunder
( 3% severe)		   CALM 90% 50°

Mostly Cloudy



 SPARTA, WI 54656 weather forecast Day 2, 9 hours 10 AM 57° 58° Mostly Cloudy   CALM 93% 55°
SPARTA, WI 54656 weather forecast Day 2, 12 hours 1 PM 63° 64° Mostly Cloudy 19%
RAIN
.01–.1 in		 0% Thunder
( 2% severe)		   CALM 75% 55°
SPARTA, WI 54656 weather forecast Day 2, 15 hours 4 PM 64° 66° Mostly Cloudy   CALM 73% 55°
SPARTA, WI 54656 weather forecast Day 2, 18 hours 7 PM 60° 61° Partly Cloudy 1%

 0% Thunder
( 4% severe)		   CALM 93% 58°
SPARTA, WI 54656 weather forecast Day 2, 21 hours 10 PM 56° 56° Mostly Cloudy   CALM 100% 56°

MCCOY AAF, WI extended weather forecast
Monday
28 SEP 2026		 Tuesday
29 SEP 2026		 Wednesday
30 SEP 2026		 Thursday
1 OCT 2026		 Friday
2 OCT 2026
Low 44° Low 46° Low 49° Low 50° Low 46°
High 73° High 67° High 75° High 69° High 69°
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
Mostly Cloudy
17% Rain		 Mostly Cloudy
58% Rain		 Mostly Cloudy
29% Rain		 Overcast
42% Rain		 Mostly Cloudy
32% Rain
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