Weather Alert
Sparta Weather Warning NWS WEATHER ALERT FOR THE SPARTA, IL AREA - Issued: 200 PM CDT Fri Sep 18 2026 Sparta Weather Warning

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Sparta, IL Weather - Hour by Hour Forecast

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Sparta, IL Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Clear. Temperature is 77°F25°C, dew point 70°F21°C, humidity 79%. Wind direction is SE at 3 mph5 km/h with visibility of 10 mi16 km. Barometric pressure is 30.05 in1018 mb.
Tonight - Partly cloudy. A slight chance of showers and thunderstorms this evening. Lows around 70. South winds around 5 mph. Chance of rain.. Full Forecast
Saturday - Mostly sunny. Hot with highs in the upper 90s. Southwest winds around 5 mph... Full Forecast

Sparta Hourly Weather

24 Hour Forecast Scroll
Fri, Sep 18
11:00 pm
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Midnight
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Sparta, IL Hourly Weather - Mostly Clear - 11:00 PM Sparta, IL Hourly Weather - Partly Cloudy - 12:00 AM Sparta, IL Hourly Weather - Partly Cloudy - 1:00 AM Sparta, IL Hourly Weather - Partly Cloudy - 2:00 AM Sparta, IL Hourly Weather - Mostly Clear - 3:00 AM Sparta, IL Hourly Weather - Mostly Clear - 4:00 AM Sparta, IL Hourly Weather - Mostly Clear - 5:00 AM Sparta, IL Hourly Weather - Partly Cloudy - 6:00 AM Sparta, IL Hourly Weather - Partly Cloudy - 7:00 AM Sparta, IL Hourly Weather - Partly Cloudy - 8:00 AM Sparta, IL Hourly Weather - Mostly Clear - 9:00 AM Sparta, IL Hourly Weather - Mostly Clear - 10:00 AM Sparta, IL Hourly Weather - Mostly Clear - 11:00 AM Sparta, IL Hourly Weather - Mostly Cloudy - 12:00 PM Sparta, IL Hourly Weather - Mostly Cloudy - 1:00 PM Sparta, IL Hourly Weather - Mostly Cloudy - 2:00 PM Sparta, IL Hourly Weather - Cloudy - 3:00 PM Sparta, IL Hourly Weather - Cloudy - 4:00 PM Sparta, IL Hourly Weather - Cloudy - 5:00 PM Sparta, IL Hourly Weather - Cloudy - 6:00 PM Sparta, IL Hourly Weather - Cloudy - 7:00 PM Sparta, IL Hourly Weather - Cloudy - 8:00 PM Sparta, IL Hourly Weather - Cloudy - 9:00 PM Sparta, IL Hourly Weather - Cloudy - 10:00 PM
Mostly Clear Partly Cloudy Partly Cloudy Partly Cloudy Mostly Clear Mostly Clear Mostly Clear Partly Cloudy Partly Cloudy Partly Cloudy Mostly Clear Mostly Clear Mostly Clear Mostly Cloudy Mostly Cloudy Mostly Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy
76°F24°C 76°F24°C 75°F24°C 75°F24°C 74°F23°C 74°F23°C 74°F23°C 73°F23°C 73°F23°C 75°F24°C 78°F26°C 80°F27°C 83°F28°C 85°F29°C 88°F31°C 89°F32°C 91°F33°C 92°F33°C 89°F32°C 86°F30°C 83°F28°C 81°F27°C 78°F26°C 76°F24°C
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1% 1% 1% 6% 6% 6% 6% 6% 6% 8% 8% 8% 8% 8% 8% 13% 13% 13% 13% 13% 13% 21% 21% 21%
66°F19°C 66°F19°C 67°F19°C 67°F19°C 67°F19°C 67°F19°C 67°F19°C 68°F20°C 68°F20°C 68°F20°C 68°F20°C 68°F20°C 66°F19°C 65°F18°C 63°F17°C 63°F17°C 62°F17°C 62°F17°C 62°F17°C 63°F17°C 63°F17°C 64°F18°C 66°F19°C 67°F19°C
71% 71% 76% 76% 79% 79% 79% 84% 84% 79% 71% 67% 57% 51% 44% 42% 38% 37% 41% 46% 51% 56% 67% 74%
S S SSE SW SW SW SSW SSW W SSW SSW SW SSW SSW SSW SSW SSW SSW W WNW NW NNW NNW N
4 mph 5 mph 5 mph 5 mph 4 mph 4 mph 4 mph 3 mph 3 mph 3 mph 3 mph 3 mph 3 mph 5 mph 5 mph 5 mph 8 mph 8 mph 8 mph 5 mph 5 mph 5 mph 6 mph 6 mph
10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km
Hour (CDT)
Weather
Clouds
Temperature
Precip. Type
POP
Dewpoint
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Visibility
POP = Probability of Precipitation. ** Indicates missing data/values from KSAR model statistics.

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Prob Precip % = Probability of Precipitation.

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POP = Probability of Precipitation. ** Indicates missing data/values from model statistics.

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