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Weather on February 18

Chicago, IL

55 Years of Data

Avg High
38°F
Avg Low
24°F
Warmest
2026
56°F avg
Coldest
2006
3°F avg

About This Date

February 18th in Chicago, IL typically brings cold winter weather, with average highs around 38°F and lows near 24°F. Over 53 years of records, the warmest February 18th was in 2026 (56°F average), while the coldest was 2006 (3°F) — a 53°F range across recorded history. Rain or other precipitation has occurred on about 17% of February 18th dates historically, with the wettest February 18th recording 0.64" of rain. The last decade has been 2.0°F warmer on this date compared to 20-30 years ago.

The last decade has been 2.0°F warmer on this date compared to 20-30 years ago.

Planning for February 18th in Chicago, IL? Bundle up with warm layers and protect extremities from the cold.

Cooling Trend
0.5°F per decade on this date
YearHighLowAvgPrecipSnow
2026warmest63°50°56°
202515°-2°
202445°24°34°
202346°25°35°
202231°11°21°
202127°15°21°
202039°27°33°
201929°23°26°
201842°23°33°
201765°42°53°
201640°25°32°
201511°
201446°25°35°
201353°29°41°
201241°33°37°
201157°37°47°
201045°31°38°
200941°23°32°
200835°22°
200729°17°23°
2006coldest10°-5°
200526°12°19°
200443°20°31°
200336°25°30°
200251°29°40°
200133°21°
200032°29°30°
199937°23°30°
199839°37°38°
199460°38°49°
199315°
199239°34°36°0.64"
199142°34°38°0.23"
199040°25°32°
198930°23°27°
198845°26°35°
198737°26°32°
198641°31°36°0.08"
198540°26°33°0.05"
198445°39°42°0.2"
198338°35°36°
198238°30°34°0.1"
198161°46°53°
198031°10°20°
197913°0.15"
197824°14°
197742°33°38°
197651°34°42°
197537°32°35°0.2"
197450°33°42°
197332°22°27°
197231°22°26°
197143°36°39°0.46"
53 years of data from CHICAGO GRANT PARK

Chicago, IL Temperature Range by Month

Average monthly highs and lows. The shaded band shows the typical daily temperature range.

10°30°50°70°90°JFMAMJJASOND
Avg high Avg low

Chicago, IL Monthly Precipitation

Average rainfall per month, in inches.

0"7.4"14.7"JFMAMJJASOND
Rain (in)

Chicago, IL Daily Temperature Calendar

Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.

151015202531JanFebMarAprMayJunJulAugSepOctNovDec
Cooler
Hotter
20°40°60°80°100°

Best Time to Visit Chicago, IL

Chicago, IL has no months that meet our "pleasant" threshold — every season has tradeoffs.

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Pleasant (65-82°F, ≤2.5" rain) Mild Less ideal

Browse Weather History

Weather data provided by NOAA Climate Data Online. Not for critical planning.

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