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Chambersburg Weather Warning NWS WEATHER ALERT FOR THE CHAMBERSBURG, IL AREA - FLOOD WARNING Issued: 948 PM CDT Mon Sep 21 2026 Chambersburg Weather Warning

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Chambersburg, IL Weather - Hour by Hour Forecast

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Chambersburg, IL Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Overcast. Temperature is 61°F16°C, dew point 60°F15°C, humidity 94%. Wind direction is ENE at 7 mph11 km/h with visibility of 10 mi16 km. Barometric pressure is 30.15 in1021 mb.
Today - Mostly cloudy. A slight chance of showers and drizzle this morning. Highs in the mid 60s. Northeast winds 5 to 10 mph. Chance of r.. Full Forecast
Tonight - Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 50s. Northeast winds 5 to 10 mph... Full Forecast

Chambersburg Hourly Weather

24 Hour Forecast Scroll
Tue, Sep 22
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Chambersburg, IL Hourly Weather - Cloudy - 6:00 AM Chambersburg, IL Hourly Weather - Cloudy - 7:00 AM Chambersburg, IL Hourly Weather - Cloudy - 8:00 AM Chambersburg, IL Hourly Weather - Cloudy - 9:00 AM Chambersburg, IL Hourly Weather - Cloudy - 10:00 AM Chambersburg, IL Hourly Weather - Cloudy - 11:00 AM Chambersburg, IL Hourly Weather - Cloudy - 12:00 PM Chambersburg, IL Hourly Weather - Cloudy - 1:00 PM Chambersburg, IL Hourly Weather - Cloudy - 2:00 PM Chambersburg, IL Hourly Weather - Cloudy - 3:00 PM Chambersburg, IL Hourly Weather - Cloudy - 4:00 PM Chambersburg, IL Hourly Weather - Cloudy - 5:00 PM Chambersburg, IL Hourly Weather - Cloudy - 6:00 PM Chambersburg, IL Hourly Weather - Cloudy - 7:00 PM Chambersburg, IL Hourly Weather - Cloudy - 8:00 PM Chambersburg, IL Hourly Weather - Cloudy - 9:00 PM Chambersburg, IL Hourly Weather - Cloudy - 10:00 PM Chambersburg, IL Hourly Weather - Cloudy - 11:00 PM Chambersburg, IL Hourly Weather - Mostly Cloudy - 12:00 AM Chambersburg, IL Hourly Weather - Mostly Cloudy - 1:00 AM Chambersburg, IL Hourly Weather - Mostly Cloudy - 2:00 AM Chambersburg, IL Hourly Weather - Partly Cloudy - 3:00 AM Chambersburg, IL Hourly Weather - Partly Cloudy - 4:00 AM Chambersburg, IL Hourly Weather - Partly Cloudy - 5:00 AM
Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
57°F14°C 57°F14°C 58°F14°C 60°F16°C 61°F16°C 62°F17°C 64°F18°C 65°F18°C 65°F18°C 66°F19°C 66°F19°C 65°F18°C 63°F17°C 62°F17°C 61°F16°C 60°F16°C 59°F15°C 58°F14°C 58°F14°C 57°F14°C 56°F13°C 56°F13°C 55°F13°C 55°F13°C
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14% 14% 20% 20% 20% 20% 20% 20% 23% 23% 23% 23% 23% 23% 12% 12% 12% 12% 12% 12% 4% 4% 4% 4%
57°F14°C 56°F13°C 56°F13°C 57°F14°C 57°F14°C 57°F14°C 57°F14°C 57°F14°C 57°F14°C 56°F13°C 56°F13°C 56°F13°C 56°F13°C 56°F13°C 56°F13°C 56°F13°C 56°F13°C 56°F13°C 55°F13°C 55°F13°C 54°F12°C 54°F12°C 53°F12°C 53°F12°C
100% 96% 93% 90% 87% 84% 78% 75% 75% 70% 70% 73% 78% 81% 84% 87% 90% 93% 90% 93% 93% 93% 93% 93%
NE NE NE ENE ENE ENE NE NE NE NE NE NE NE NNE NNE NE NE NE NNE NNE NNE NE NE NE
6 mph 6 mph 6 mph 10 mph 10 mph 10 mph 7 mph 7 mph 7 mph 8 mph 8 mph 8 mph 8 mph 8 mph 8 mph 6 mph 6 mph 6 mph 4 mph 4 mph 4 mph 4 mph 4 mph 4 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
Humidity
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Visibility
POP = Probability of Precipitation. ** Indicates missing data/values from KIJX model statistics.

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Prob Precip % = Probability of Precipitation.

Chambersburg 36 Hour Forecast

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

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