Marshalltown in August

7.8out of 10

Yes, a good time to go

Warm and comfortable: highs around 27°C. Frequent rain: about 9 rainy days.

27°CAvg high
17°CAvg low
9Rainy days (99 mm)
13:42 hDaylight
06:25Sunrise · 20:07 Sunset

Why this score

  • Warm and comfortable: highs around 27°C
  • Frequent rain: about 9 rainy days

What to wear and pack

  • T-shirts and light layers
  • Shorts or a light skirt
  • Rain jacket or compact umbrella

How reliable is the forecast?

Rainfall in August 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

-2° -10° J 1° -8° F 9° -2° M 16° 5° A 22° 11° M 27° 17° J 29° 19° J 27° 17° A 24° 13° S 17° 6° O 9° -1° N 1° -7° D Rainy days

Weather by month

MonthAvg highAvg lowRainfall Rainy daysHumiditySunshine Score
January -2°C-10°C32 mm 7– – 4.2
February 1°C-8°C38 mm 7– – 4.2
March 9°C-2°C64 mm 9– – 5.5
April 16°C5°C113 mm 11– – 6.5
May 22°C11°C135 mm 14– – 7.0
June 27°C17°C131 mm 12– – 7.3
July 29°C19°C99 mm 10– – 7.7
August 27°C17°C99 mm 9– – 7.8
September 24°C13°C95 mm 8– – 7.9
October 17°C6°C73 mm 8– – 7.2
November 9°C-1°C54 mm 7– – 5.8
December 1°C-7°C40 mm 6– – 4.3

Frequently asked questions

How hot is Marshalltown in August?

Daytime highs average 27°C and nights about 17°C.

When is the best time to visit Marshalltown?

The best months are September, August, July.