Rock Bridge Memorial State Park, MO

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Natural rock bridge and wooded karst terrain at Rock Bridge Memorial State Park
Natural rock bridge and wooded karst terrain at Rock Bridge Memorial State Park — Photo by mostateparks, Public domain, via Wikimedia Commons.

Today’s Forecast:

☁
66°F
High: 67° | Low: 61°
Current Temperature
Mostly Cloudy
Station: KCOU
Observed at: 8:35 pm CDT on 9/26/26
Wind: 10 mph | Humidity: 73%
Tonight:A slight chance of showers and thunderstorms between 10pm and 11pm, then showers and thunderstorms likely. Cloudy, with a low around 61. Southeast wind around 6 mph. Chance of precipitation is 70%.
Sunday:Rain showers likely before 1pm. Mostly cloudy, with a high near 77. Southeast wind around 5 mph. Chance of precipitation is 60%.
Sunday Night:Mostly cloudy, with a low around 61. East wind around 3 mph.
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Today’s Report:

🥾 Hiking

Use Caution
  43 /100

Use Caution for hiking. High near 75°F. Risk of rain later today (55%). Slight chance of thunderstorms.

  • Temp: Favorable conditions
  • Rain: Marginal weather factor
  • Wind: Favorable conditions
  • Thunderstorm: Marginal weather factor
Tomorrow's Outlook:
Excellent 90/100
Excellent for hiking. High near 78°F. Low rain risk (2%).

About Rock Bridge Memorial State Park

This page connects Rock Bridge, Devil’s Icebox entrance, Sinkhole and Gans Creek wild-area trails, where exposure and operating notices matter as much as the regional forecast.

Planning an Outing

A workable outing depends on karst flooding, slick rock, cave access, heat, debris and hunting visibility. Match the forecast to the chosen access rather than assuming every component operates alike.

Destination-Specific Access

Cave closure and high water matter, but there is no invented caving card and ordinary boardwalk use is not padded with extra activities.

Weather Tips

  • For this Rock Bridge, Devil’s Icebox entrance, Sinkhole and Gans Creek wild-area trails, read the gauge trend and upstream rainfall because current and floating debris can change after local skies clear.

Nearby Towns and Areas

  • Rock Bridge
  • Devil’s Icebox
  • Gans Creek
  • Columbia

Adjust the Day to the Forecast

Choose the shorter route with the clearest exit options.

7-Day Forecast

☁
66°F
High: 67° | Low: 61°
Current Temperature
Mostly Cloudy
Station: KCOU
Observed at: 8:35 pm CDT on 9/26/26
Wind: 10 mph | Humidity: 73%
Sun 🌧
77° 61°
59%
Mon ⛅
80° 62°
2%
Tue 🌧
82° 67°
32%
Wed ⛈
79° 67°
66%
Thu ⛈
77° 61°
72%
Fri 🌧
74° 58°
48%
Sat 🌧
76° --°
23%

7-Day High Temperature Trend

77° Sun 80° Mon 82° Tue 79° Wed 77° Thu 74° Fri 76° Sat

7-Day Low Temperature Trend

61° Sun 62° Mon 67° Tue 67° Wed 61° Thu 58° Fri 50° Sat

📊 7-Day Outdoor Outlook

Good Fair Poor 80 Sun 70 Mon 19 Tue 14 Wed 17 Thu 22 Fri 90 Sat
Forecast data from the National Weather Service  |  Last Updated: September 26, 2026 9:16 pm CDT

Weather by Season

Winter

Cold spells make karst flooding more consequential, while a quick warmup can leave shaded ground icy and exposed ground soft.

Spring

New vegetation and saturated soil magnify debris and hunting visibility; wait for the posted reopening instead of testing a closed route.

Summer

The heat index and debris and hunting visibility deserve separate checks, especially when shade, water or rapid shelter is limited.

Fall

Cooler air improves comfort, but leaf cover and debris and hunting visibility can hide changing footing or access restrictions.

Key Climate Data Points

  • Local climate: This local planning area has an annual average temperature near 55–58°F, receives about 40–46 inches of precipitation and records typically 10–18 inches.
  • Wettest season: Spring and early summer.
  • Driest season: Late summer or early fall.
  • Annual average temperature: Near 55–58°f.
  • Annual snowfall: Typically 10–18 inches.