Galena Weather in August
August in Galena averages 28°C (82°F) during the day and 16°C (61°F) at night. Quite a bit of rainfall is typical this month, with around 104 mm (4.1 in) on average. An umbrella is a good idea.
Rainfall in Galena in August
Expect around 10 days of rain based on historical data, with 104 mm (4.1 in) average. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Galena in August
Daytime highs in Galena in August reach 28°C (82°F), with nights around 16°C (61°F). During August, the summer season is in full swing. Overall, the month follows a fairly predictable daily temperature pattern. With overnight lows of 16°C (61°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.
Sunshine in Galena in August
Enjoy a sunny month with about 280 hours of sunshine, the clear skies make Galena even more beautiful.Should you favor a climate that's both dry and comfortably warm, September typically offers the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Galena's climate page.
Galena Temperature in August
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Galena typically stay consistent throughout August, with daily highs averaging around 28°C (82°F). Nights are pleasant, with lows typically ranging from 15°C (59°F) to 17°C (63°F).
Average temperatures in August
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in August
Historical weather for Galena in August
Browse day-by-day weather records for Galena spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Galena historical weather extremes in August
Based on 43 years of weather observations in Galena between 1982 and 2025, these are the recorded extremes.
- The hottest August day on record in Galena reached 38°C (100°F) (August 1, 1988).
- Galena experienced its chilliest August day on August 25, 1987, reaching only 13°C (55°F).
- Nighttime temperatures dropped to 6°C (43°F) on August 21, 2004, marking the coldest August night on record.
Best Places in the United States of America in August
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in August →
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What to Wear in Galena in August
Warm weather calls for comfortable, breathable clothing in August. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). High rain levels are expected, so pack waterproof gear and an umbrella or poncho. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Galena in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Galena's climate page.
See the full Galena climate overview or explore weather in the United States of America.