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Now · 11:49 AM

Weldon Spring, MO Weather Forecast – Hourly & 15-Day

United States · Missouri

Overcast
72°F
Overcast
Feels like: 73°F
💧 Humidity 67% 🌡 Pressure 30.24 inHg 💨 Wind 4 mph 👁 Visibility 21.9 mi ☁ Clouds 100% ☀️ UV index 2.9 · Low 🌅 Sunrise 6:52 AM 🌇 Sunset 6:56 PM

Hourly Forecast for Weldon Spring

Today
Overcast · 12:00 PM Overcast
72° 💧 0.002 in 💨 4 mph 67%30.24 inHg
Overcast · 3:00 PM Overcast
72° 💧 0.000 in 💨 4 mph 64%30.18 inHg
Partly cloudy · 6:00 PM Partly cloudy
71° 💧 0 in 💨 4 mph 67%30.15 inHg
Overcast night · 9:00 PM Overcast night
67° 💧 0 in 💨 3 mph 82%30.15 inHg
Tomorrow
Mostly cloudy night · 12:00 AM Mostly cloudy night
65° 💧 0 in 💨 5 mph 79%30.15 inHg
Overcast night · 3:00 AM Overcast night
63° 💧 0 in 💨 4 mph 82%30.12 inHg
Overcast night · 6:00 AM Overcast night
62° 💧 0 in 💨 4 mph 82%30.12 inHg
Overcast · 9:00 AM Overcast
64° 💧 0 in 💨 4 mph 73%30.15 inHg
Mostly cloudy · 12:00 PM Mostly cloudy
71° 💧 0 in 💨 4 mph 58%30.12 inHg
Overcast · 3:00 PM Overcast
72° 💧 0 in 💨 5 mph 56%30.06 inHg
Overcast · 6:00 PM Overcast
69° 💧 0 in 💨 7 mph 64%30.03 inHg
Overcast night · 9:00 PM Overcast night
65° 💧 0.000 in 💨 6 mph 69%30.03 inHg
Sunday
Light rain · 12:00 AM Light rain
63° 💧 0.016 in 💨 4 mph 79%30.03 inHg
Mostly clear night · 3:00 AM Mostly clear night
61° 💧 0 in 💨 3 mph 84%30.03 inHg
Mostly cloudy night · 6:00 AM Mostly cloudy night
59° 💧 0 in 💨 3 mph 87%30.03 inHg
Mostly cloudy · 9:00 AM Mostly cloudy
63° 💧 0 in 💨 3 mph 82%30.06 inHg

In Weldon Spring and, more broadly, across the state of Missouri: This morning will start with mostly cloudy skies and mild temperatures around 67 degrees. Winds will be light from the northeast at up to 9 mph, with occasional gusts reaching 18 mph. As the day progresses, temperatures are expected to warm into the low 80s, reaching around 83. Rain may develop, with some areas experiencing about 0.08 inches of accumulation. The highest chance of rain is about 85%, so keep an umbrella handy if you're heading outdoors. Winds will remain light during the afternoon, continuing from the northeast at similar speeds. Overall, it looks like a warm, mostly cloudy day with a good likelihood of some rain, especially later in the day.

15-Day Weather Outlook for Weldon Spring

TomorrowTomorrow Mostly cloudy Mostly cloudy 73°/60° 💧 0 in 💨 7 mph
Sunday, September 27Sun, Sep. 27 Partly cloudy Partly cloudy 75°/59° 💧 0 in 💨 5 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Weldon Spring

Vertical axis: °F · Horizontal axis: hours · Color based on temperature
Overcast · 12:00 PM
72° Today 12:00 PM
Overcast · 1:00 PM
72° 1:00 PM
Overcast · 2:00 PM
72° 2:00 PM
Overcast · 3:00 PM
72° 3:00 PM
Mostly cloudy · 4:00 PM
71° Today 4:00 PM
Mostly cloudy · 5:00 PM
72° 5:00 PM
Partly cloudy · 6:00 PM
71° 6:00 PM
Mostly cloudy night · 7:00 PM
68° 7:00 PM
Overcast night · 8:00 PM
68° Today 8:00 PM
Overcast night · 9:00 PM
67° 9:00 PM
Overcast night · 10:00 PM
66° 10:00 PM
Mostly cloudy night · 11:00 PM
66° 11:00 PM
Mostly cloudy night · 12:00 AM
65° Tomorrow 12:00 AM
Partly cloudy night · 1:00 AM
63° 1:00 AM
Overcast night · 2:00 AM
63° 2:00 AM
Overcast night · 3:00 AM
63° 3:00 AM
Overcast night · 4:00 AM
62° Tomorrow 4:00 AM
Overcast night · 5:00 AM
62° 5:00 AM
Overcast night · 6:00 AM
62° 6:00 AM
Partly cloudy · 7:00 AM
60° 7:00 AM
Mostly cloudy · 8:00 AM
62° Tomorrow 8:00 AM
Overcast · 9:00 AM
64° 9:00 AM
Overcast · 10:00 AM
64° 10:00 AM
Mostly cloudy · 11:00 AM
67° 11:00 AM
Mostly cloudy · 12:00 PM
71° Tomorrow 12:00 PM
Mostly cloudy · 1:00 PM
72° 1:00 PM
Overcast · 2:00 PM
73° 2:00 PM
Overcast · 3:00 PM
72° 3:00 PM
Overcast · 4:00 PM
71° Tomorrow 4:00 PM
Mostly cloudy · 5:00 PM
70° 5:00 PM
Overcast · 6:00 PM
69° 6:00 PM
Overcast night · 7:00 PM
67° 7:00 PM
Overcast night · 8:00 PM
66° Tomorrow 8:00 PM
Overcast night · 9:00 PM
65° 9:00 PM
Overcast night · 10:00 PM
65° 10:00 PM
Overcast night · 11:00 PM
64° 11:00 PM
Light rain · 12:00 AM
63° Sunday 12:00 AM
Light rain · 1:00 AM
63° 1:00 AM
Partly cloudy night · 2:00 AM
62° 2:00 AM
Mostly clear night · 3:00 AM
61° 3:00 AM
Mostly cloudy night · 4:00 AM
60° Sunday 4:00 AM
Mostly cloudy night · 5:00 AM
60° 5:00 AM
Mostly cloudy night · 6:00 AM
59° 6:00 AM
Partly cloudy · 7:00 AM
59° 7:00 AM
Mostly cloudy · 8:00 AM
61° Sunday 8:00 AM
Mostly cloudy · 9:00 AM
63° 9:00 AM
Mostly cloudy · 10:00 AM
68° 10:00 AM
Partly cloudy · 11:00 AM
70° 11:00 AM
Mostly cloudy · 12:00 PM
73° Sunday 12:00 PM
Overcast · 1:00 PM
74° 1:00 PM
Mostly cloudy · 2:00 PM
74° 2:00 PM
Mostly cloudy · 3:00 PM
75° 3:00 PM
Overcast · 4:00 PM
74° Sunday 4:00 PM
Overcast · 5:00 PM
74° 5:00 PM
Sunny · 6:00 PM
73° 6:00 PM
Mostly clear night · 7:00 PM
69° 7:00 PM

AIR QUALITY FORECAST

Air Quality Forecast for Weldon Spring

Hourly forecast · Updated every 2 hours
Fair
Nearest forecast value 12:00 PM
PM2.5 PM2.5 Good 7,7µg/m³

Air quality is favorable for outdoor activities.

PM10 PM10 Good 8,2µg/m³

Air quality is favorable for outdoor activities.

O₃ O₃ Fair 61,8µg/m³

Air quality is acceptable for most people.

NO₂ NO₂ Good 1,2µg/m³

Air quality is favorable for outdoor activities.

Air quality is acceptable for most people.

HEALTH & EXPOSURE

UV, Sun & Health Outlook in Weldon Spring

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.
0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme
Today UV 3,9Moderate 🙂Fair
Tomorrow UV 3,0Moderate 🙂Fair
Hourly UV index today
12:00 PMUV 2,9 1:00 PMUV 2,6 2:00 PMUV 2,5 3:00 PMUV 1,9 4:00 PMUV 1,2 5:00 PMUV 1,5 6:00 PMUV 0,9 7:00 PMUV 0,2
Hourly UV index tomorrow
7:00 AMUV 0,0 8:00 AMUV 0,3 9:00 AMUV 1,1 10:00 AMUV 0,9 11:00 AMUV 2,4 12:00 PMUV 3,6 1:00 PMUV 3,9 2:00 PMUV 3,6 3:00 PMUV 2,4 4:00 PMUV 2,0 5:00 PMUV 1,2 6:00 PMUV 0,8 7:00 PMUV 0,2
Today's weather health advice Open today's recommendations.

Moderate UV risk

Sunglasses and sun protection are recommended for prolonged exposure.

Acceptable air quality

Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged exertion.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Weldon Spring

Vertical axis: mph · Horizontal axis: hours
Hourly wind speed Chart of sustained wind and maximum gusts in mph. Today 12:00 PM 1:00 PM 2:00 PM 3:00 PM Today 4:00 PM 5:00 PM 6:00 PM 7:00 PM Today 8:00 PM 9:00 PM 10:00 PM 11:00 PM Tomorrow 12:00 AM 1:00 AM 2:00 AM 3:00 AM Tomorrow 4:00 AM 5:00 AM 6:00 AM 7:00 AM Tomorrow 8:00 AM 9:00 AM 10:00 AM 11:00 AM Tomorrow 12:00 PM 1:00 PM 2:00 PM 3:00 PM Tomorrow 4:00 PM 5:00 PM 6:00 PM 7:00 PM Tomorrow 8:00 PM 9:00 PM 10:00 PM 11:00 PM Sunday 12:00 AM 1:00 AM 2:00 AM 3:00 AM Sunday 4:00 AM 5:00 AM 6:00 AM 7:00 AM Sunday 8:00 AM 9:00 AM 10:00 AM 11:00 AM Sunday 12:00 PM 1:00 PM 2:00 PM 3:00 PM Sunday 4:00 PM 5:00 PM 6:00 PM 7:00 PM
Sustained wind Max gusts

The technical data used to calculate this forecast for Weldon Spring were updated today at 11:49 AM. The displayed forecasts cover the period through 27/09/2026 at 9:00 AM. Weather and air-quality data provided by WEATHER-INFO.COM. UV-index data derived from ECMWF UVB by WEATHER PORTAL. Weather information is generated automatically and periodically reviewed by our technical team.

NIGHT SKY · WELDON SPRING, MISSOURI

Tonight's Stargazing & Shooting Stars

Fair observing conditions. Best local viewing window: 1:00 AM–2:00 AM.

48/100Best-hour score
BEST TIME TONIGHT 1:00 AM–2:00 AM Astronomical darkness: 8:23 PM–5:25 AM
☁ Cloud cover 53% Real hourly forecast for the best viewing hour.
☾ Moonlight 100% Full Moon · Moon about 51° above the horizon at the best viewing hour.
☄ Meteor activity Southern Taurids Reference ZHR 7 · Radiant 42° high at the best hour.
✦ Estimated visible meteors 0–1/hour Local estimate after weather, moonlight and radiant-height adjustments.
Chance ≥1 meteor in 30 min19%
UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.
SEP 20–NOV 20
Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak
ACTIVE NOW
OCT 2–NOV 7
OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak
UPCOMING
OCT 20–DEC 10
Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak
UPCOMING
NOV 6–NOV 30
LeonidsStart NOV 6 · Peak NOV 17 · End NOV 30 · ZHR 15 · 52% Moon at peak
UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.