Weather Alert
Harrisburg Weather Warning NWS WEATHER ALERT FOR THE HARRISBURG, IL AREA - Issued: 1059 PM CDT Mon Sep 14 2026 Harrisburg Weather Warning

World > North America > United States > Illinois > Harrisburg   Harrisburg, IL Weather City of Harrisburg, IL

Harrisburg, IL Weather - Hour by Hour Forecast

Feedback E-mail the Weather

Quick Clicks

Harrisburg, IL Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Clear. Temperature is 68°F20°C, dew point 63°F17°C, humidity 83%. Wind direction is N at 0 mph0 km/h with visibility of 10 mi16 km. Barometric pressure is 30.07 in1018 mb.
Overnight - Clear. Near steady temperature in the upper 60s. Southeast winds around 5 mph... Full Forecast
Tuesday - Sunny, hot with highs in the upper 90s. South winds 5 to 10 mph... Full Forecast

Harrisburg Hourly Weather

24 Hour Forecast Scroll
Tue, Sep 15
5:00 am
Tue, Sep 15
6:00 am
Tue, Sep 15
7:00 am
Tue, Sep 15
8:00 am
Tue, Sep 15
9:00 am
Tue, Sep 15
10:00 am
Tue, Sep 15
11:00 am
Tue, Sep 15
Noon
Tue, Sep 15
1:00 pm
Tue, Sep 15
2:00 pm
Tue, Sep 15
3:00 pm
Tue, Sep 15
4:00 pm
Tue, Sep 15
5:00 pm
Tue, Sep 15
6:00 pm
Tue, Sep 15
7:00 pm
Tue, Sep 15
8:00 pm
Tue, Sep 15
9:00 pm
Tue, Sep 15
10:00 pm
Tue, Sep 15
11:00 pm
Wed, Sep 16
Midnight
Wed, Sep 16
1:00 am
Wed, Sep 16
2:00 am
Wed, Sep 16
3:00 am
Wed, Sep 16
4:00 am
Harrisburg, IL Hourly Weather - Clear - 5:00 AM Harrisburg, IL Hourly Weather - Clear - 6:00 AM Harrisburg, IL Hourly Weather - Clear - 7:00 AM Harrisburg, IL Hourly Weather - Clear - 8:00 AM Harrisburg, IL Hourly Weather - Clear - 9:00 AM Harrisburg, IL Hourly Weather - Clear - 10:00 AM Harrisburg, IL Hourly Weather - Clear - 11:00 AM Harrisburg, IL Hourly Weather - Mostly Clear - 12:00 PM Harrisburg, IL Hourly Weather - Mostly Clear - 1:00 PM Harrisburg, IL Hourly Weather - Mostly Clear - 2:00 PM Harrisburg, IL Hourly Weather - Mostly Cloudy - 3:00 PM Harrisburg, IL Hourly Weather - Mostly Cloudy - 4:00 PM Harrisburg, IL Hourly Weather - Mostly Cloudy - 5:00 PM Harrisburg, IL Hourly Weather - Partly Cloudy - 6:00 PM Harrisburg, IL Hourly Weather - Partly Cloudy - 7:00 PM Harrisburg, IL Hourly Weather - Partly Cloudy - 8:00 PM Harrisburg, IL Hourly Weather - Mostly Cloudy - 9:00 PM Harrisburg, IL Hourly Weather - Mostly Cloudy - 10:00 PM Harrisburg, IL Hourly Weather - Mostly Cloudy - 11:00 PM Harrisburg, IL Hourly Weather - Mostly Cloudy - 12:00 AM Harrisburg, IL Hourly Weather - Mostly Cloudy - 1:00 AM Harrisburg, IL Hourly Weather - Mostly Cloudy - 2:00 AM Harrisburg, IL Hourly Weather - Cloudy - 3:00 AM Harrisburg, IL Hourly Weather - Cloudy - 4:00 AM
Clear Clear Clear Clear Clear Clear Clear Mostly Clear Mostly Clear Mostly Clear Mostly Cloudy Mostly Cloudy Mostly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Cloudy Cloudy
67°F19°C 67°F19°C 68°F20°C 75°F24°C 82°F28°C 89°F32°C 92°F33°C 96°F36°C 99°F37°C 99°F37°C 100°F38°C 100°F38°C 97°F36°C 93°F34°C 90°F32°C 86°F30°C 83°F28°C 79°F26°C 78°F26°C 76°F24°C 75°F24°C 74°F23°C 73°F23°C 72°F22°C
- - - - - - - - - - - - - - - - - - - - - - - -
0% 0% 0% 1% 1% 1% 1% 1% 1% 7% 7% 7% 7% 7% 7% 14% 14% 14% 14% 14% 14% 14% 14% 14%
63°F17°C 64°F18°C 64°F18°C 66°F19°C 67°F19°C 69°F21°C 66°F19°C 63°F17°C 60°F16°C 59°F15°C 57°F14°C 56°F13°C 58°F14°C 61°F16°C 63°F17°C 65°F18°C 67°F19°C 69°F21°C 69°F21°C 68°F20°C 68°F20°C 68°F20°C 67°F19°C 67°F19°C
87% 90% 87% 74% 61% 52% 43% 34% 28% 27% 24% 23% 28% 35% 41% 50% 59% 72% 74% 76% 79% 82% 82% 84%
SE SE SE SSE S SW SW SW SW SW SW SW SSE SSE S S SSE SE SE ESE E ESE SE SE
1 mph 1 mph 1 mph 1 mph 9 mph 9 mph 9 mph 9 mph 9 mph 9 mph 9 mph 9 mph 9 mph 4 mph 4 mph 4 mph 2 mph 2 mph 2 mph 1 mph 1 mph 1 mph 1 mph 1 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
Wind Direction
Wind Speed
Visibility
POP = Probability of Precipitation. ** Indicates missing data/values from KHSB model statistics.

Trending Headlines

Trending Entertainment Headlines

Harrisburg Radar Loop

Use the map search tool if you want to place a location marker on the radar map...
Prob Precip % = Probability of Precipitation.

Harrisburg 36 Hour Forecast

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

E-mail the Harrisburg Weather Forecast

Voice your opinion or tell us about page issues...

Harrisburg IL Weather - 6:00 am

What are people saying?

Contact Us