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Onarga, IL Weather - 14-Day Weather Forecast

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Partly Cloudy

76°F

Updated	7:39 am
Feels Like	85°F
Humidity	94%
Wind	N 0 mph
Barometer	29.93 in
Dew Point	75°F

Partly Cloudy

25°C

Updated	7:39 am
Feels Like	29°C
Humidity	94%
Wind	N 0 km/h
Barometer	101.4 kPa
Dew Point	24°C

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°F °C°F °C

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Sun & Moon

Converter

Cloud Cover	7%
uv UV Index	8
Sunrise	6:23 AM
Sunset	7:18 PM
Moonrise	7:00 PM
Moonset	3:56 PM

Civil Twilight
5:52 AM to 6:20 AM
7:18 PM to 7:46 PM
Onarga IL Weather - Waning Crescent Moon

Waning Crescent Moon

Onarga, IL Weather and Current Conditions

Onarga, IL Weather Forecast

Onarga, Illinois Weather Weather Forecast

14 day API weather forecast for Onarga, Illinois. Note: The 7-day weather forecast for Onarga, IL is the most reliable and accurate weather forecast. This model should only be used as a likely scenario. It is difficult to predict weather more than 7 days ahead.

Onarga, IL Weather Forecast Dated: 739 AM Sat Sep 05 2026

Expect a very warm period with a mix of sun and clouds and occasional showers over the coming period. generally humid conditions and no major pressure swings will dominate. Isolated storms at times.

Weather Charts Weather Stats

Saturday, September 5, 2026

Mid-Morning

86°F 30°C

Sunny

Mid-Afternoon

88°F 31°C

Sunny

Early-Evening

78°F 25°C

Scattered Showers

Warm and summery around 88°F 31°C (feels like 93°F 34°C), periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds turning from the SSW to the NE at 11 mph 18 km/h. Gusts up to 21 mph 34 km/h.

Sunday, September 6, 2026

Mid-Morning

67°F 20°C

Sunny

Mid-Afternoon

78°F 26°C

Sunny

Early-Evening

72°F 22°C

Sunny

Comfortable with temperatures reaching 78°F 26°C, sunny throughout the day, with steady humidity and steady pressure. Winds blowing from the ENE at 10 mph 16 km/h.

Monday, September 7, 2026

Mid-Morning

64°F 18°C

Sunny

Mid-Afternoon

79°F 26°C

Overcast

Early-Evening

72°F 23°C

Sunny

Enjoyable around 79°F 26°C, sunny in the morning, overcast in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure. Winds moving from the ENE to the ESE at 6 mph 10 km/h.

Tuesday, September 8, 2026

Mid-Morning

70°F 21°C

Partly Cloudy

Mid-Afternoon

84°F 29°C

Sunny

Early-Evening

80°F 27°C

Sunny

Warm temperatures up to 84°F 29°C, partly cloudy throughout the day, with lower humidity and barometric pressure falling. Winds out of the SSW at 9 mph 14 km/h.

Wednesday, September 9, 2026

Mid-Morning

76°F 24°C

Sunny

Mid-Afternoon

87°F 31°C

Cloudy

Early-Evening

80°F 27°C

Partly Cloudy

Very warm with a high of 87°F 31°C, sunny in the morning, becoming partly cloudy through the afternoon and evening, with lower humidity and steady pressure. Winds shifting from the SW to the WNW at 8 mph 13 km/h.

Thursday, September 10, 2026

Mid-Morning

68°F 20°C

Overcast

Mid-Afternoon

75°F 24°C

Sunny

Early-Evening

67°F 19°C

Sunny

Pleasant near 75°F 24°C, overcast in the morning, sunny in the afternoon, and cloudy this evening, with increasing humidity and steady pressure. Winds turning from the NNW to the SSE at 8 mph 12 km/h.

Friday, September 11, 2026

Mid-Morning

63°F 17°C

Sunny

Mid-Afternoon

74°F 23°C

Light Showers

Early-Evening

70°F 21°C

Scattered Showers

Comfortable with temperatures reaching 74°F 23°C, periods of heavy rain and gusty conditions, with steady humidity and barometric pressure falling. Winds switching from the ESE to the E at 12 mph 18 km/h. Gusts up to 22 mph 34 km/h.

Saturday, September 12, 2026

Mid-Morning

64°F 18°C

Partly Cloudy

Mid-Afternoon

78°F 26°C

Sunny

Early-Evening

70°F 21°C

Sunny

Enjoyable around 78°F 26°C, sunny throughout the day, with steady humidity and steady pressure. Winds moving from the ENE to the ESE at 12 mph 19 km/h. Gusts up to 23 mph 36 km/h.

Sunday, September 13, 2026

Mid-Morning

63°F 17°C

Sunny

Mid-Afternoon

78°F 25°C

Sunny

Early-Evening

71°F 22°C

Sunny

Mild temperatures up to 78°F 25°C, sunny throughout the day, with steady humidity and steady pressure. Winds SE at 12 mph 19 km/h.

Monday, September 14, 2026

Mid-Morning

74°F 23°C

Sunny

Mid-Afternoon

89°F 32°C

Sunny

Early-Evening

83°F 28°C

Sunny

Warm and summery around 89°F 32°C (feels like 92°F 33°C), sunny throughout the day, with steady humidity and steady pressure. Winds shifting from the SSE to the SE at 8 mph 13 km/h.

Tuesday, September 15, 2026

Mid-Morning

81°F 27°C

Overcast

Mid-Afternoon

93°F 34°C

Cloudy

Early-Evening

86°F 30°C

Sunny

Hot and sweltering around 93°F 34°C (heat index 98°F 37°C), partly cloudy throughout the day, with steady humidity and steady pressure.

Wednesday, September 16, 2026

Mid-Morning

80°F 27°C

Cloudy

Mid-Afternoon

90°F 32°C

Nearby Thunderstorms

Early-Evening

85°F 30°C

Nearby Thunderstorms

Very hot with a high of 90°F 32°C, feeling closer to 94°F 35°C in the humidity, heavy thunderstorms conditions at times, with steady humidity and steady pressure.

Thursday, September 17, 2026

Mid-Morning

78°F 25°C

Scattered Showers

Mid-Afternoon

82°F 28°C

Overcast

Early-Evening

79°F 26°C

Overcast

Warm and summery around 82°F 28°C (feels like 85°F 30°C), periods of heavy rain and gusty conditions, with steady humidity and barometric pressure falling.

Friday, September 18, 2026

Mid-Morning

Onarga Weather - 2026-09-18 - Morning - Fog

69°F 21°C

Fog

Mid-Afternoon

77°F 25°C

Overcast

Early-Evening

70°F 22°C

Overcast

Mild temperatures up to 77°F 25°C, overcast through the afternoon, turning cloudy this evening, with lower humidity and steady pressure. Winds blowing from the NE at 10 mph 16 km/h.

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Weather by the Numbers

Sat, 5th Hi: 95°F 35°C Lo: 71°F 22°C	Sunrise 06:23 AM Sunset 07:18 PM Wind NE 6 mph9 km/h Dew Point 68°F20°C uv Index 7 Barometric Pressure 29.91 in1013 mb POP 4% * Humidity 58%
Sun, 6th Hi: 78°F 26°C Lo: 64°F 18°C	Sunrise 06:24 AM Sunset 07:16 PM Wind ENE 10 mph16 km/h Dew Point 53°F12°C uv Index 7 Barometric Pressure 30.06 in1018 mb POP 1% * Humidity 46%
Mon, 7th Hi: 79°F 26°C Lo: 58°F 14°C	Sunrise 06:25 AM Sunset 07:14 PM Wind E 10 mph16 km/h Dew Point 56°F14°C uv Index 7 Barometric Pressure 30.12 in1020 mb POP 3% * Humidity 54%
Tue, 8th Hi: 84°F 29°C Lo: 64°F 18°C	Sunrise 06:26 AM Sunset 07:13 PM Wind SSW 8 mph13 km/h Dew Point 62°F17°C uv Index 7 Barometric Pressure 30.09 in1019 mb POP 2% * Humidity 53%
Wed, 9th Hi: 87°F 31°C Lo: 72°F 22°C	Sunrise 06:27 AM Sunset 07:11 PM Wind WNW 11 mph18 km/h Dew Point 66°F19°C uv Index 7 Barometric Pressure 30.06 in1018 mb POP 3% * Humidity 59%
Thu, 10th Hi: 75°F 24°C Lo: 61°F 16°C	Sunrise 06:28 AM Sunset 07:09 PM Wind NNW 11 mph18 km/h Dew Point 53°F12°C uv Index 5 Barometric Pressure 30.09 in1019 mb POP 5% * Humidity 50%
Fri, 11th Hi: 74°F 24°C Lo: 58°F 15°C	Sunrise 06:29 AM Sunset 07:08 PM Wind ESE 9 mph14 km/h Dew Point 56°F14°C uv Index 5 Barometric Pressure 29.97 in1015 mb POP 25% * Humidity 63%
Sat, 12th Hi: 78°F 26°C Lo: 58°F 15°C	Sunrise 06:29 AM Sunset 07:06 PM Wind E 13 mph21 km/h Dew Point 60°F15°C uv Index 6 Barometric Pressure 29.97 in1015 mb POP 4% * Humidity 62%
Sun, 13th Hi: 78°F 26°C Lo: 56°F 13°C	Sunrise 06:30 AM Sunset 07:04 PM Wind SE 12 mph20 km/h Dew Point 52°F11°C uv Index 6 Barometric Pressure 30.12 in1020 mb POP 1% * Humidity 48%
Mon, 14th Hi: 90°F 32°C Lo: 64°F 18°C	Sunrise 06:31 AM Sunset 07:02 PM Wind S 9 mph15 km/h Dew Point 60°F16°C uv Index 7 Barometric Pressure 30.12 in1020 mb POP 1% * Humidity 45%
Tue, 15th Hi: 94°F 34°C Lo: 75°F 24°C	Sunrise 06:32 AM Sunset 07:01 PM Wind SSE 6 mph9 km/h Dew Point 66°F19°C uv Index 8 Barometric Pressure 30.15 in1021 mb POP 5% * Humidity 48%
Wed, 16th Hi: 90°F 32°C Lo: 75°F 24°C	Sunrise 06:33 AM Sunset 06:59 PM Wind W 6 mph10 km/h Dew Point 67°F19°C uv Index 8 Barometric Pressure 30.15 in1021 mb POP 9% * Humidity 51%
Thu, 17th Hi: 85°F 29°C Lo: 74°F 23°C	Sunrise 06:34 AM Sunset 06:57 PM Wind SSW 6 mph9 km/h Dew Point 67°F20°C uv Index 6 Barometric Pressure 30.09 in1019 mb POP 15% * Humidity 69%
Fri, 18th Hi: 79°F 26°C Lo: 65°F 18°C	Sunrise 06:35 AM Sunset 06:56 PM Wind NE 11 mph18 km/h Dew Point 66°F19°C uv Index 5 Barometric Pressure 30.06 in1018 mb POP 24% * Humidity 81%

* POP = Probability of Precipitation. Data for 12:00 PM.

Weather 101: Term of the Day

HP Storm

or HP Supercell - High-Precipitation storm (or High-Precipitation supercell). A supercell thunderstorm in which heavy precipitation (often including hail) falls on the trailing side of the mesocyclone. Precipitation often totally envelops the region of rotation, making visual identification of any embedded tornadoes difficult and very dangerous. Unlike most classic supercells, the region of rotation in many HP storms develops in the front-flank region of the storm (i.e., usually in the eastern portion). HP storms often produce extreme and prolonged downburst events, serious flash flooding, and very large damaging hail events.

Meteorlogic Glosserator
Instant definitions for any meteorological term.