Galesburg in September

7.9out of 10

Yes, a good time to go

Warm and comfortable: highs around 25°C. Some rain: about 8 rainy days.

25°CAvg high
14°CAvg low
8Rainy days (86 mm)
12:15 hDaylight
06:48Sunrise · 19:04 Sunset

Why this score

  • Warm and comfortable: highs around 25°C
  • Some rain: about 8 rainy days

What to wear and pack

  • T-shirts and light layers
  • A light jacket for cooler evenings
  • Rain jacket or compact umbrella

How reliable is the forecast?

Rainfall in September is fairly consistent from year to year (2.7 days). Averages cover 30 years (1991–2020). Individual days can differ a lot.

Year at a glance

0° -8° J 3° -6° F 10° 0° M 17° 6° A 23° 12° M 27° 17° J 29° 19° J 28° 18° A 25° 14° S 18° 7° O 10° 1° N 3° -5° D Rainy days

Weather by month

MonthAvg highAvg lowRainfall Rainy daysHumiditySunshine Score
January 0°C-8°C50 mm 8– – 4.0
February 3°C-6°C52 mm 7– – 4.6
March 10°C0°C74 mm 10– – 5.6
April 17°C6°C110 mm 12– – 6.6
May 23°C12°C121 mm 13– – 7.1
June 27°C17°C119 mm 12– – 7.4
July 29°C19°C90 mm 10– – 7.7
August 28°C18°C83 mm 9– – 7.8
September 25°C14°C86 mm 8– – 7.9
October 18°C7°C73 mm 9– – 7.3
November 10°C1°C66 mm 8– – 5.9
December 3°C-5°C54 mm 8– – 4.6

Frequently asked questions

How hot is Galesburg in September?

Daytime highs average 25°C and nights about 14°C.

When is the best time to visit Galesburg?

The best months are September, August, July, June.