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
8:55 AM CDT AUG 18, 2026
Clear 73°F
Feels Like:	73°F
Dewpoint:	64°F
Rel. Hum.:	73%
Visibility:	10 miles
Wind:	Calm
Pressure:	29.92 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
Mostly cloudy with a chance of showers. A chance of thunderstorms this afternoon. Highs in the upper 70s. West winds 5 to 10 mph. Chance of rain 40 percent.

TONIGHT
Mostly cloudy with a chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Lows in the mid 50s. Light winds. Chance of rain 40 percent.

WEDNESDAY
Mostly sunny. Highs in the upper 70s. Light and variable winds, becoming northwest around 5 mph in the afternoon.

WEDNESDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 50s. Northwest winds around 5 mph in the evening, becoming light and variable.

THURSDAY
Mostly sunny. Highs in the lower 80s. Southwest winds 5 to 10 mph.

THURSDAY NIGHT AND FRIDAY
Partly cloudy. A chance of showers and thunderstorms. Lows around 60. Highs in the lower 80s. Chance of rain 50 percent.

FRIDAY NIGHT
Partly cloudy with a chance of showers and thunderstorms. Lows in the upper 50s. Chance of rain 40 percent.

SATURDAY
Mostly sunny. Highs in the upper 70s.

SATURDAY NIGHT
Mostly clear. Lows in the mid 50s.

SUNDAY THROUGH MONDAY
Partly cloudy. Highs in the upper 70s. Lows in the mid 50s.

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 8/17/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Tuesday
18 AUG 2026

1 AM

65°

65°

Mostly Cloudy

44%
RAIN
.1–.25 in

0% Thunder
( 16% severe)

CALM

84%

60°

Low 63°

4 AM

64°

66°

Mostly Cloudy

CALM

84%

59°

High 79°

7 AM

64°

66°

Mostly Cloudy

46%
RAIN
***

0% Thunder
( 14% severe)

CALM

93%

62°

Mostly Cloudy

Chance of Rain

10 AM

70°

70°

Mostly Cloudy

WSW 3

87%

66°

1 PM

74°

74°

Mostly Cloudy

32%
RAIN
1–2 in

0% Thunder
( 32% severe)

W 3

79%

67°

4 PM

74°

74°

Partly Cloudy

W 2

76%

66°

7 PM

72°

72°

Mostly Cloudy

17%
RAIN
<.01 in

0% Thunder
( 25% severe)

CALM

81%

66°

10 PM

64°

66°

Partly Cloudy

CALM

100%

64°

Wednesday
19 AUG 2026

1 AM

60°

61°

Partly Cloudy

0%

0% Thunder
( 3% severe)

CALM

96%

59°

Low 52°

4 AM

57°

58°

Partly Cloudy

CALM

93%

55°

High 80°

7 AM

56°

56°

Mostly Cloudy

0%

0% Thunder
( 1% severe)

CALM

96%

55°

Decreasing Clouds

10 AM

68°

68°

Mostly Cloudy

CALM

76%

60°

1 PM

76°

78°

Clear

1%

0% Thunder
( 7% severe)

CALM

50%

56°

4 PM

77°

78°

Clear

CALM

45%

54°

7 PM

73°

73°

Clear

0%

0% Thunder
( 7% severe)

CALM

57%

57°

10 PM

62°

63°

Clear

CALM

78%

55°


MCCOY AAF, WI extended weather forecast
Thursday 20 AUG 2026	Friday 21 AUG 2026	Saturday 22 AUG 2026	Sunday 23 AUG 2026	Monday 24 AUG 2026
Low 49°	Low 54°	Low 53°	Low 43°	Low 50°
High 84°	High 83°	High 81°	High 80°	High 80°

Partly Cloudy 23% Rain	Mostly Cloudy 52% Rain	Partly Cloudy 23% Rain	Clear 4% Rain	Partly Cloudy 18% Rain

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