Weather Alert
San Juan Headstart Weather Warning NWS WEATHER ALERT FOR THE SAN JUAN HEADSTART, IL AREA - Issued: 1012 AM CDT Sat Aug 8 2026 San Juan Headstart Weather Warning

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San Juan Headstart, IL Weather - Hour by Hour Forecast

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San Juan Headstart, IL Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Clear. Temperature is 77°F25°C, dew point 65°F18°C, humidity 66%. Wind direction is N at 8 mph13 km/h with visibility of 10.00 mi16 km. Barometric pressure is 30.09 in1019 mb.
Rest of Today - Mostly sunny. Highs in the lower 80s. Northwest winds around 10 mph, diminishing to around 5 mph in the afternoon... Full Forecast
Tonight - Mostly clear in the evening, then becoming partly cloudy. A slight chance of showers and thunderstorms late. Lows in the lower 60s.. Full Forecast

San Juan Headstart Hourly Weather

24 Hour Forecast Scroll
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San Juan Headstart, IL Hourly Weather - Clear - 12:00 PM San Juan Headstart, IL Hourly Weather - Clear - 1:00 PM San Juan Headstart, IL Hourly Weather - Clear - 2:00 PM San Juan Headstart, IL Hourly Weather - Clear - 3:00 PM San Juan Headstart, IL Hourly Weather - Clear - 4:00 PM San Juan Headstart, IL Hourly Weather - Clear - 5:00 PM San Juan Headstart, IL Hourly Weather - Clear - 6:00 PM San Juan Headstart, IL Hourly Weather - Clear - 7:00 PM San Juan Headstart, IL Hourly Weather - Clear - 8:00 PM San Juan Headstart, IL Hourly Weather - Clear - 9:00 PM San Juan Headstart, IL Hourly Weather - Clear - 10:00 PM San Juan Headstart, IL Hourly Weather - Clear - 11:00 PM San Juan Headstart, IL Hourly Weather - Clear - 12:00 AM San Juan Headstart, IL Hourly Weather - Clear - 1:00 AM San Juan Headstart, IL Hourly Weather - Clear - 2:00 AM San Juan Headstart, IL Hourly Weather - Clear - 3:00 AM San Juan Headstart, IL Hourly Weather - Clear - 4:00 AM San Juan Headstart, IL Hourly Weather - Clear - 5:00 AM San Juan Headstart, IL Hourly Weather - Mostly Cloudy - 6:00 AM San Juan Headstart, IL Hourly Weather - Mostly Cloudy - 7:00 AM San Juan Headstart, IL Hourly Weather - Mostly Cloudy - 8:00 AM San Juan Headstart, IL Hourly Weather - Cloudy - 9:00 AM San Juan Headstart, IL Hourly Weather - Cloudy - 10:00 AM San Juan Headstart, IL Hourly Weather - Cloudy - 11:00 AM
Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Mostly Cloudy Mostly Cloudy Mostly Cloudy Cloudy Cloudy Cloudy
80°F27°C 82°F28°C 83°F28°C 83°F28°C 84°F29°C 82°F28°C 81°F27°C 79°F26°C 76°F24°C 74°F23°C 71°F22°C 70°F21°C 68°F20°C 67°F19°C 67°F19°C 67°F19°C 67°F19°C 67°F19°C 68°F20°C 68°F20°C 70°F21°C 73°F23°C 75°F24°C 78°F26°C
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1% 1% 1% 1% 1% 1% 1% 1% 0% 0% 0% 0% 0% 0% 7% 7% 7% 7% 7% 7% 60% 60% 60% 60%
61°F16°C 60°F16°C 59°F15°C 59°F15°C 58°F14°C 58°F14°C 58°F14°C 58°F14°C 58°F14°C 59°F15°C 59°F15°C 59°F15°C 59°F15°C 59°F15°C 59°F15°C 60°F16°C 60°F16°C 61°F16°C 62°F17°C 63°F17°C 64°F18°C 66°F19°C 67°F19°C 67°F19°C
52% 47% 44% 44% 41% 44% 46% 49% 54% 60% 66% 68% 73% 76% 76% 78% 78% 81% 81% 84% 81% 79% 76% 69%
NW NW NW NW WNW W SSW SSW SW SSE S S S S S SSE SE SE SE SE SSE S S S
7 mph 7 mph 7 mph 7 mph 7 mph 7 mph 5 mph 5 mph 5 mph 2 mph 2 mph 2 mph 2 mph 2 mph 2 mph 3 mph 3 mph 3 mph 5 mph 5 mph 5 mph 8 mph 8 mph 8 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
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POP = Probability of Precipitation. ** Indicates missing data/values from KRFD model statistics.

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Prob Precip % = Probability of Precipitation.

San Juan Headstart 36 Hour Forecast

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

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