Walnut Ridge Recreation Area

Johnston, Saylorville Lake, Iowa

Nights by month

Night lows from 2016 to 2025: a typical night, and the cold one that comes 1 night in 10.

The mildest nights are in July, typically 68°F. The coldest are in January, when 1 night in 10 drops to -7°F. Frost is common in January, February, March, April, November and December.

Typical nightCold night (1 in 10)
  1. Jan17°F -7°FBag comfortable to -5°F · frost 97% · rain or snow 22% of days
  2. Feb19°F -4°FBag comfortable to -5°F · frost 91% · rain or snow 23% of days
  3. Mar31°F 21°FBag comfortable to 20°F · frost 54% · rain or snow 31% of days
  4. Apr41°F 28°FBag comfortable to 30°F · frost 17% · rain or snow 34% of days
  5. May53°F 42°FBag comfortable to 40°F · frost 0% · rain or snow 44% of days
  6. Jun65°F 57°FBag comfortable to 55°F · frost 0% · rain or snow 35% of days
  7. Jul68°F 62°FBag comfortable to 65°F · frost 0% · rain or snow 30% of days
  8. Aug66°F 59°FBag comfortable to 60°F · frost 0% · rain or snow 34% of days
  9. Sep (this month)61°F 52°FBag comfortable to 50°F · frost 0% · rain or snow 26% of days
  10. Oct47°F 33°FBag comfortable to 35°F · frost 9% · rain or snow 27% of days
  11. Nov33°F 20°FBag comfortable to 20°F · frost 47% · rain or snow 21% of days
  12. Dec24°F 7°FBag comfortable to 10°F · frost 86% · rain or snow 17% of days

| = 32°F

History: ERA5 and ERA5-Land reanalysis via Open-Meteo, corrected to the site's elevation. Bag rating: the comfort rating that keeps you warm in a tent on 9 of 10 nights that month.

Tonight

The forecast is not available right now. Try again in a few minutes.

Checked for a double-wall tent, a 3-season bag and a thin air pad. Check your own gear here.

Book or read more on Recreation.gov

Campgrounds nearby