Roscoe climate

Roscoe Weather in September

NOAA 1991-2020 normals for Beloit, 10.3 km from Roscoe

Average highs run from 76°F on September 1 to 66°F on September 30, and lows from 55°F to 45°F. Normal precipitation for the month is 3.83 in over about 8 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 Roscoe, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
71°F
Average low
50°F
Precipitation
3.83 in
Record high
96°FSep 2, 2000
Record low
28°FSep 23, 1995
Chance of a freeze
15%
Days of 90°F or more
0.8
Daylight
13 h 09 min to 11 h 47 min
Cloud cover
51%
Humidity
75%
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 176°F55°F94°F 201240°F 200927%0%
Sep 276°F55°F96°F 200043°F 200927%0%
Sep 375°F55°F92°F 199943°F 198727%0%
Sep 475°F55°F94°F 202340°F 199727%0%
Sep 575°F54°F94°F 201238°F 198827%0%
Sep 675°F54°F95°F 199039°F 198827%0%
Sep 774°F54°F92°F 201641°F 202527%0%
Sep 874°F53°F91°F 200341°F 202427%0%
Sep 974°F53°F91°F 200241°F 199527%0%
Sep 1073°F53°F94°F 201342°F 199527%0%
Sep 1173°F52°F95°F 201337°F 199327%0%
Sep 1273°F52°F91°F 200539°F 199327%0%
Sep 1373°F51°F91°F 200538°F 201427%0%
Sep 1472°F51°F91°F 199837°F 201427%0%
Sep 1572°F51°F89°F 202434°F 200727%0%
Sep 1671°F50°F90°F 202435°F 200727%0%
Sep 1771°F50°F91°F 198838°F 199927%0%
Sep 1871°F50°F91°F 201839°F 199927%0%
Sep 1970°F49°F88°F 200736°F 201227%0%
Sep 2070°F49°F91°F 202133°F 199127%0%
Sep 2170°F48°F93°F 201732°F 199127%0%
Sep 2269°F48°F92°F 201733°F 198927%0%
Sep 2369°F48°F95°F 201728°F 199527%0%
Sep 2468°F47°F95°F 201729°F 199527%0%
Sep 2568°F47°F93°F 201733°F 199527%0%
Sep 2667°F46°F94°F 201732°F 198927%0%
Sep 2767°F46°F90°F 199829°F 199127%0%
Sep 2867°F45°F88°F 202130°F 199127%0%
Sep 2966°F45°F84°F 202530°F 199127%0%
Sep 3066°F45°F89°F 202529°F 199328%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Roscoe, in percent, and of at least 0.1 inch of snowfall.01020301102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

September 1
sunrise 6:21 AM, sunset 7:30 PM
September 30
sunrise 6:52 AM, sunset 6:39 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00470696 (Beloit), public domain. Records: NOAA GHCN-Daily, station USC00470045, 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.