Home / Local Weather & Traffic / Missouri / St. Louis / Weather Forecast

St. Louis, MO Weather Tomorrow

Planning ahead? View tomorrow's St. Louis weather along with a complete 5 day forecast that includes daily precipitation forecasts, changing sky conditions, daytime highs, overnight lows, Fahrenheit and Celsius temperatures, sunrise, sunset, wind chill, and local wind details for the St. Louis area.
Updated: Fri Aug 28th 2026 11:30 AM CDT
St. Louis, MO Weather – 8-28 – Sunny
92° / 65°
Sunny
Sunshine is in the forecast for St. Louis, with a high of 92°F and a low of 65°F. There's a very small chance of rainfall, only about 4%. Winds will be light at 9mph and gusts of 19.2mph at 4 PM. Humidity levels should be comfortable, sitting around 60% on average, the maximum being 59% at 11 PM and 34% being its lowest at 3 PM. Barometric pressure is its highest of 30.13inHg at 12 PM, a lowest point of 30.06inHg at 4 PM with an avg 30.08inHg.
St. Louis, MO Weather – 8-29 – Overcast
90° / 68°

Weather Tomorrow

Overcast
In St. Louis, cloud-filled skies are likely with a high near 90°F and a low around 68°F. There's a very small chance of rainfall, only about 9%. Winds will be light at 9mph and gusts of 24.7mph at 11 PM. Humidity levels should be comfortable, sitting around 49% on average, the maximum being 73% at 7 AM and 25% being its lowest at 4 PM. Barometric pressure is its highest of 30.12inHg at 8 AM, a lowest point of 29.95inHg at 6 PM with an avg 30.04inHg.
St. Louis, MO Weather – 8-30 – Overcast
100° / 74°
Overcast
Daytime highs will reach 100°F with lows dropping to 74°F in St. Louis, where it will be overcast. There's a very small chance of rainfall, only about 5%. Wind will be moderate, blowing around 13mph on average and gusts of 30.9mph at 11 PM. Humidity levels should be comfortable, sitting around 36% on average, the maximum being 55% at 7 AM and 23% being its lowest at 4 PM. Barometric pressure is its highest of 30.03inHg at 8 AM, a lowest point of 29.86inHg at 6 PM with an avg 29.94inHg.
St. Louis, MO Weather – 8-31 – Sunny
100° / 82°
Sunny
Daytime highs will reach 100°F with lows dropping to 82°F in St. Louis, where it will be sunny. There's a very small chance of rainfall, only about 3%. Wind will be moderate, blowing around 14mph on average and gusts of 33.8mph at 3 AM. Humidity levels should be comfortable, sitting around 34% on average, the maximum being 43% at 7 AM and 22% being its lowest at 3 PM. Barometric pressure is its highest of 29.96inHg at 10 AM, a lowest point of 29.82inHg at 8 PM with an avg 29.9inHg.
St. Louis, MO Weather – 9-1 – Sunny
102° / 82°
Sunny
Highs will reach 102°F with lows near 82°F in St. Louis, where a sunny day is. There's a very small chance of rainfall, only about 1%. Wind will be moderate, blowing around 13mph on average and gusts of 33.7mph at 3 AM. Humidity levels should be comfortable, sitting around 35% on average, the maximum being 53% at 7 AM and 22% being its lowest at 5 PM. Barometric pressure is its highest of 29.99inHg at 11 AM, a lowest point of 29.85inHg at 12 AM with an avg 29.91inHg.
St. Louis, MO Weather – 9-2 – Sunny
102° / 82°
Sunny
In St. Louis, bright and sunny conditions with highs near 102°F and lows around 82°F. There's a very small chance of rainfall, only about 2%. Wind will be moderate, blowing around 11mph on average and gusts of 29.1mph at 4 AM. Humidity levels should be comfortable, sitting around 35% on average, the maximum being 52% at 7 AM and 22% being its lowest at 4 PM. Barometric pressure is its highest of 29.98inHg at 10 AM, a lowest point of 29.87inHg at 6 PM with an avg 29.92inHg.

Currently

Sunny 86°F
30.14 inHg.
Barometer
50%
Humidity
NNE 7.9 mph
Wind
Sunny

5 Day Forecast Nearby

More Local Information

Bookmark and Share

Get the LocalConditions.com App on Google Play
Sign up for a membership to go Ad free

St. Louis Community Weather Reports

Write your own St. Louis, MO report, forecast, or traffic update:


Will not be posted, shared or used for marketing!

Please note by clicking on "Post" you acknowledge that you have read our Privacy Policy and Terms of Service and the St. Louis, MO report and/or forecast you are posting is in compliance with such terms. If you are under 18, do not submit this form. Be respectful! Inappropriate content will be removed by a moderator.