Palatine climate

Palatine Weather in September

NOAA 1991-2020 normals for Barrington 3SW, 10.7 km from Palatine

Average highs run from 77°F on September 1 to 67°F on September 30, and lows from 59°F to 48°F. Normal precipitation for the month is 3.65 in over about 10 wet days.

September day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Palatine, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
72°F
Average low
54°F
Precipitation
3.65 in
Record high
96°FSep 2, 2026
Record low
34°FSep 24, 2012
Chance of a freeze
5%
Daylight
13 h 08 min to 11 h 47 min
Cloud cover
59%
Humidity
73%
Dew point
54°F
Wind
9.2 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Sep 177°F59°F95°F 202646°F 200934%0%
Sep 277°F59°F96°F 202649°F 201734%0%
Sep 377°F58°F93°F 202349°F 199733%0%
Sep 477°F58°F93°F 202346°F 199733%0%
Sep 576°F58°F94°F 202348°F 201033%0%
Sep 676°F57°F94°F 199846°F 200033%0%
Sep 776°F57°F89°F 200546°F 202533%0%
Sep 875°F57°F92°F 200246°F 202433%0%
Sep 975°F56°F95°F 201347°F 200833%0%
Sep 1075°F56°F96°F 201345°F 199933%0%
Sep 1174°F56°F92°F 201345°F 199933%0%
Sep 1274°F55°F90°F 200545°F 200733%0%
Sep 1374°F55°F94°F 200542°F 201433%0%
Sep 1473°F55°F87°F 200444°F 200733%0%
Sep 1573°F54°F89°F 201739°F 200733%0%
Sep 1673°F54°F89°F 201743°F 201433%0%
Sep 1772°F53°F92°F 201845°F 199933%0%
Sep 1872°F53°F89°F 200742°F 201233%0%
Sep 1971°F52°F89°F 202438°F 201233%0%
Sep 2071°F52°F93°F 201742°F 200633%0%
Sep 2171°F51°F93°F 201740°F 200633%0%
Sep 2270°F51°F96°F 201739°F 199934%0%
Sep 2370°F51°F94°F 201739°F 201234%0%
Sep 2469°F50°F92°F 201734°F 201234%0%
Sep 2569°F50°F92°F 201740°F 200034%0%
Sep 2668°F49°F93°F 201737°F 200034%0%
Sep 2768°F49°F88°F 202144°F 200134%0%
Sep 2868°F48°F85°F 201342°F 200634%0%
Sep 2967°F48°F89°F 202538°F 200634%0%
Sep 3067°F48°F87°F 201937°F 200334%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Palatine, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

September 1
sunrise 6:18 AM, sunset 7:26 PM
September 30
sunrise 6:48 AM, sunset 6:35 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00110442 (Barrington 3SW), public domain. Records: NOAA GHCN-Daily, station USW00004838, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.