Galena weather in August 2025

Expect 81°F daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in Galena in August. Check more long-term weather averages for Galena in August before you book your next holiday to Illinois in 2025/2026.

  • 81°F maximum daytime temperature in August in Galena81
    81°F max day temperature
  • 10 hours of sunshine per day
  • 9 days with some rainfall in August in Galena9
    9 days with some rainfall
  • 59°F minimum night-time temperature in August in Galena59
    59°F min night temperature
  • 14 hours of daylight per day in August in Galena14
    14 hours of daylight per day
  • Low heat & humidity in August in GalenaL
    Low heat & humidity
  • 4.4 inches monthly rainfall in August in Galena4.4
    4.4 inches of monthly rainfall
  • UV (maximum) index 8 (Very High) in August in Galena8
    8 (Very High) UV index

More about Galena

Galena by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Illinois

Cosmos: up to £600 off USA & Canada tours

  • Save up to £600 per couple on USA & Canada escorted tours
  • Book tours to southern USA & national parks in 2024
  • Travel between 1st Jan & 31st Dec 2025 (inclusive)
Go to Cosmos deal >>

Expires at 23:59 on Thursday 5th Dec 2024 · View all Cosmos offers

The August weather guide for Illinois (Galena) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

Back to top

More about the USA

How hot is it in Galena in August?

Daytime temperatures usually reach 81°F in Galena in August with low heat and humidity, falling to 59°F at night.

How sunny is it in Galena in August?

There are normally 10 hours of bright sunshine each day in Galena in August - that's 69% of daylight hours.

Does it rain in Galena in August?

There are usually 9 days with some rain in Galena in August and the average monthly rainfall is 4.4 inches.

Galena August sunrise & sunset times

Browse the sunrise and sunset times for Galena in August 2025. Select a month to view Galena sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 04:55 19:21
Saturday, 16th August 2025 05:10 19:01
Sunday, 31st August 2025 05:26 18:37

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^