Lemont 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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Mon 20 Apr, 2026 Weather in Lemont

Sunrise: 06:04 AM Sunset: 07:39 PM	Moonrise: 07:51 AM Moonset: No moonset	Max: 12.2 °c	Min: 2.6 °c	Avg: 7.4 °c	Precip: 0.00 mm	Max Wind: 14.0 kph

	Mon 20 0:00 am	Mon 20 3:00 am	Mon 20 6:00 am	Mon 20 9:00 am	Mon 20 12:00 pm	Mon 20 3:00 pm	Mon 20 6:00 pm	Mon 20 9:00 pm
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Temp	4.1°c	2.8°c	2.9°c	6.2°c	9.4°c	11.9°c	11.5°c	9.3°c
Wind	10.8 kmph	9.7 kmph	8.6 kmph	9.0 kmph	9.0 kmph	10.8 kmph	10.4 kmph	11.9 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	14%	2%	0%	33%	33%	6%	9%	6%
Humidity	64%	61%	71%	47%	34%	32%	38%	51%
Pressure	1025 mb	1026 mb	1028 mb	1029 mb	1028 mb	1025 mb	1023 mb	1022 mb

Lemont 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	9°C / 47°F	0°C / 32°F	4°C / 39°F	138 hours	101.20 mm / 3.98 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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