Romeoville Weather History Illinois, United States of America

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Past date: Past date must be from 1st Jan, 2009 onwards.

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Daily and hourly data from 1 Jan 2009 onwards.
Yearly Monthly Averages
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Tue 03 Mar, 2026 Weather in Romeoville

Sunrise: 06:24 AM Sunset: 05:46 PM	Moonrise: 06:16 PM Moonset: 06:26 AM	Max: 4.9 °c	Min: 1.1 °c	Avg: 2.7 °c	Precip: 0.00 mm	Max Wind: 10.8 kph

	Tue 03 0:00 am	Tue 03 3:00 am	Tue 03 6:00 am	Tue 03 9:00 am	Tue 03 12:00 pm	Tue 03 3:00 pm	Tue 03 6:00 pm	Tue 03 9:00 pm
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Temp	2.1°c	1.4°c	1.1°c	1.6°c	3.3°c	4.9°c	4.3°c	3.2°c
Wind	8.6 kmph	7.6 kmph	8.6 kmph	9.0 kmph	5.4 kmph	5.4 kmph	10.8 kmph	10.1 kmph
Precip	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm
Cloud	58%	78%	97%	100%	94%	91%	98%	100%
Humidity	67%	71%	76%	78%	80%	81%	86%	91%
Pressure	1024 mb	1022 mb	1022 mb	1022 mb	1020 mb	1019 mb	1020 mb	1021 mb

Romeoville Annual Weather Averages

Month	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
January	-1°C / 30°F	-8°C / 18°F	-5°C / 24°F	118 hours	55.40 mm / 2.18 In	8 days	1020 mb / 31 In
February	1°C / 34°F	-6°C / 20°F	-3°C / 27°F	120 hours	60.44 mm / 2.38 In	7 days	1019 mb / 31 In
March	8°C / 47°F	0°C / 32°F	4°C / 39°F	142 hours	93.50 mm / 3.68 In	8 days	1018 mb / 31 In
April	14°C / 58°F	5°C / 41°F	9°C / 49°F	138 hours	137.81 mm / 5.43 In	8 days	1014 mb / 30 In
May	21°C / 69°F	11°C / 52°F	16°C / 61°F	176 hours	147.06 mm / 5.79 In	10 days	1015 mb / 30 In
June	26°C / 79°F	17°C / 62°F	21°C / 70°F	209 hours	158.43 mm / 6.24 In	10 days	1013 mb / 30 In
July	28°C / 82°F	19°C / 66°F	23°C / 74°F	219 hours	123.30 mm / 4.85 In	9 days	1015 mb / 30 In
August	27°C / 81°F	18°C / 65°F	23°C / 73°F	230 hours	107.75 mm / 4.24 In	8 days	1015 mb / 30 In
September	24°C / 76°F	15°C / 59°F	19°C / 67°F	225 hours	86.11 mm / 3.39 In	6 days	1017 mb / 31 In
October	17°C / 62°F	8°C / 47°F	12°C / 54°F	175 hours	101.66 mm / 4.00 In	7 days	1016 mb / 30 In
November	9°C / 48°F	1°C / 35°F	5°C / 41°F	169 hours	70.34 mm / 2.77 In	5 days	1019 mb / 31 In
December	2°C / 36°F	-3°C / 26°F	-1°C / 31°F	121 hours	67.65 mm / 2.66 In	6 days	1019 mb / 31 In

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