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Sparta, WI Weather Forecast

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Sparta, WI Weather Forecast

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Sparta WI weather - Mostly Cloudy - 73°F
Mostly Cloudy
73°F
Updated 12:30 am
Feels Like 81°F
Humidity 94%
Wind N 0 mph
Barometer  29.93 in
Dew Point 72°F
Sparta WI weather - Mostly Cloudy - 23°C
Mostly Cloudy
23°C
Updated 12:30 am
Feels Like 27°C
Humidity 94%
Wind N 0 km/h
Barometer  101.3 kPa
Dew Point 22°C
WX Settings

Sparta Weather Forecast

OVERNIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT LABOR DAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY THURSDAY FRIDAY
Sparta, WI Weather - Overnight Patchy Fog Sparta, WI Weather - Saturday Mostly Cloudy Sparta, WI Weather - Saturday Night Partly Cloudy Sparta, WI Weather - Sunday Mostly Cloudy Sparta, WI Weather - Sunday Night Partly Cloudy Sparta, WI Weather - Labor Day Mostly Cloudy Sparta, WI Weather - Monday Night Mostly Cloudy Sparta, WI Weather - Tuesday Chance Of T-Storm Sparta, WI Weather - Tuesday Night Chance Of T-Storm Sparta, WI Weather - Wednesday Partly Cloudy Sparta, WI Weather - Thursday Partly Cloudy Sparta, WI Weather - Friday Partly Cloudy
Patchy Fog Mostly Cloudy Partly Cloudy Mostly Cloudy Partly Cloudy Mostly Cloudy Mostly Cloudy Chance of T-Storm Chance of T-Storm Partly Cloudy Partly Cloudy Partly Cloudy
Lo: 65°FLo: 18°C Hi: 81°FHi: 27°C
 Lo: 60°FLo: 16°C Hi: 81°FHi: 27°C
 Lo: 59°FLo: 15°C Hi: 81°FHi: 27°C
Lo: 61°FLo: 16°C		 Hi: 81°FHi: 27°C
Lo: 61°FLo: 16°C		 Hi: 89°FHi: 32°C
 Lo: 65°FLo: 18°C Hi: 81°FHi: 27°C
Lo: 55°FLo: 13°C		 Hi: 81°FHi: 27°C
Lo: 55°FLo: 13°C		 Hi: 81°FHi: 27°C
Lo: 55°FLo: 13°C
POP: 50% POP: 80%
POP = Probability of Precipitation.
Weather Outlook Updated: 1031 PM CDT Fri Sep 04 2026 Sparta, WI Weather - WeatherWorld.com

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Issued: 654 PM CDT Fri Sep 4 2026

Key Messages

  • Shower and storm chances persist through the holiday weekend.
  • Hot temperatures linger this afternoon, mainly across northeast Iowa and southwest Wisconsin, before trending slightly cooler Sunday into Monday.
  • A low pressure system is expected to move through the Upper Midwest next week, brining the potential for showers and storms Tuesday into Wednesday (50-70%).

Discussion

... Issued at 1254 PM CDT Fri Sep 4 2026

Tonight - Monday: Persistent Shower/Storm Chances, Trending Slightly Coole...