St. Louis, MO Hourly Forecast

Missouri, United States 🇺🇸
87°
Sunny Feels like 98°
Updated 14 min ago

St. Louis temperature trend - Next 24 hours

91° 12 PM 12 PM - 91°F (33°C), Sunny 1 PM - 93°F (34°C), Partly Cloudy 2 PM - 95°F (35°C), Partly Cloudy 96° 3 PM 3 PM - 96°F (35°C), Partly Cloudy 4 PM - 95°F (35°C), Partly Cloudy 5 PM - 96°F (35°C), Sunny 95° 6 PM 6 PM - 95°F (35°C), Sunny 7 PM - 94°F (34°C), Sunny 8 PM - 91°F (33°C), Sunny 88° 9 PM 9 PM - 88°F (31°C), Clear 10 PM - 86°F (30°C), Clear 11 PM - 84°F (29°C), Clear 82° 12 AM 12 AM - 82°F (28°C), Clear 1 AM - 76°F (25°C), Clear, 11% precip 2 AM - 76°F (24°C), Clear, 11% precip 75° 3 AM 3 AM - 75°F (24°C), Clear, 11% precip 4 AM - 74°F (24°C), Clear, 11% precip 5 AM - 74°F (23°C), Clear, 12% precip 74° 6 AM 6 AM - 74°F (23°C), Sunny, 12% precip 7 AM - 75°F (24°C), Sunny, 12% precip 8 AM - 78°F (26°C), Sunny, 10% precip 82° 9 AM 9 AM - 82°F (28°C), Sunny, 7% precip 10 AM - 84°F (29°C), Partly Cloudy, 6% precip 11 AM - 83°F (28°C), Sunny, 7% precip

The next 24 hours at a glance

  • Warmest hour: 3 PM - around 96°
  • Coolest hour: 6 AM - around 74°
  • Rain risk: low all day (peaks at 12%)
  • UV peak: 1 PM at index 10 - sun protection recommended
  • Windiest: 10 AM at 11 mph

St. Louis hourly weather - Friday, July 17

In St. Louis, expect a high near 96°F (35°C) around 3 PM and a low of 84°F (29°C) near 11 PM, with no meaningful precipitation risk.

TimeConditionsTemp FeelsRainWind HumidityUV
12 PM Sunny 91° 102° 4% 8 mph WNW 60% 10
1 PM Partly Cloudy 93° 100° 4% 8 mph WNW 50% 10
2 PM Partly Cloudy 95° 101° 3% 9 mph WNW 44% 10
3 PM Partly Cloudy 96° 83° 2% 9 mph WNW 38% 8
4 PM Partly Cloudy 95° 99° 2% 8 mph WNW 41% 5
5 PM Sunny 96° 101° 1% 7 mph W 40% 3
6 PM Sunny 95° 84° 1% 8 mph W 38% 1
7 PM Sunny 94° 83° 1% 6 mph WNW 38% 0
8 PM Sunny 91° 93° 1% 5 mph WNW 42% 0
9 PM Clear 88° 90° 1% 4 mph WNW 47% 0
10 PM Clear 86° 88° 2% 4 mph WNW 52% 0
11 PM Clear 84° 87° 2% 4 mph W 55% 0

St. Louis hourly weather - Saturday, July 18

In St. Louis, expect a high near 93°F (34°C) around 4 PM and a low of 74°F (23°C) near 6 AM; precipitation risk peaks at 38% around 9 PM.

TimeConditionsTemp FeelsRainWind HumidityUV
12 AM Clear 82° 85° 4% 4 mph WSW 65% 0
1 AM Clear 76° 67° 11% 5 mph SW 84% 0
2 AM Clear 76° 66° 11% 6 mph WSW 83% 0
3 AM Clear 75° 64° 11% 6 mph WSW 84% 0
4 AM Clear 74° 64° 11% 6 mph WSW 85% 0
5 AM Clear 74° 63° 12% 6 mph WSW 85% 0
6 AM Sunny 74° 63° 12% 6 mph W 86% 0
7 AM Sunny 75° 64° 12% 6 mph WSW 85% 0
8 AM Sunny 78° 73° 10% 8 mph WSW 79% 1
9 AM Sunny 82° 86° 7% 10 mph W 72% 3
10 AM Partly Cloudy 84° 88° 6% 11 mph W 66% 5
11 AM Sunny 83° 88° 7% 9 mph W 69% 8
12 PM Sunny 88° 93° 3% 10 mph W 55% 10
1 PM Sunny 91° 96° 2% 11 mph W 49% 10
2 PM Sunny 92° 97° 2% 11 mph W 46% 10
3 PM Sunny 93° 98° 2% 11 mph W 46% 8
4 PM Sunny 93° 100° 2% 10 mph W 47% 5
5 PM Sunny 93° 99° 3% 10 mph W 49% 3
6 PM Sunny 91° 98° 3% 10 mph W 54% 1
7 PM Patchy rain nearby 87° 95° 36% 8 mph WNW 62% 0
8 PM Partly Cloudy 84° 89° 7% 7 mph NW 68% 0
9 PM Patchy rain nearby 82° 86° 38% 6 mph NW 69% 0
10 PM Clear 80° 83° 7% 6 mph WNW 74% 0
11 PM Clear 79° 77° 8% 6 mph W 76% 0

St. Louis hourly weather - Sunday, July 19

In St. Louis, expect a high near 95°F (35°C) around 4 PM and a low of 74°F (24°C) near 6 AM; precipitation risk peaks at 42% around 8 PM.

TimeConditionsTemp FeelsRainWind HumidityUV
12 AM Clear 78° 72° 9% 6 mph W 78% 0
1 AM Clear 77° 68° 9% 5 mph W 80% 0
2 AM Clear 77° 66° 10% 5 mph W 82% 0
3 AM Clear 76° 65° 11% 6 mph W 84% 0
4 AM Clear 75° 65° 12% 6 mph W 85% 0
5 AM Clear 75° 65° 12% 5 mph W 86% 0
6 AM Sunny 74° 65° 13% 5 mph WNW 87% 0
7 AM Sunny 76° 67° 12% 4 mph WNW 85% 0
8 AM Sunny 80° 80° 10% 5 mph NW 79% 1
9 AM Sunny 83° 88° 7% 4 mph NW 72% 3
10 AM Partly Cloudy 86° 92° 6% 4 mph NW 66% 5
11 AM Sunny 88° 96° 4% 4 mph WNW 61% 7
12 PM Sunny 90° 99° 3% 4 mph WNW 57% 9
1 PM Sunny 92° 101° 3% 4 mph W 53% 9
2 PM Patchy rain nearby 94° 102° 17% 4 mph WNW 50% 7
3 PM Sunny 94° 103° 3% 4 mph NW 49% 6
4 PM Partly Cloudy 95° 103° 3% 4 mph NNW 48% 3
5 PM Partly Cloudy 94° 103° 3% 5 mph NNE 50% 2
6 PM Thundery outbreaks in nearby 90° 100° 13% 7 mph NE 61% 0
7 PM Patchy rain nearby 88° 99° 28% 6 mph ENE 68% 0
8 PM Patchy rain nearby 83° 92° 42% 7 mph E 79% 0
9 PM Partly Cloudy 81° 87° 13% 6 mph ESE 84% 0
10 PM Patchy rain nearby 81° 86° 40% 6 mph ESE 83% 0
11 PM Clear 79° 76° 13% 5 mph SE 87% 0

Quick answers for the hours ahead

What is the warmest hour in St. Louis today?
3 PM is forecast to be the warmest, at about 96°F (35°C) with partly cloudy.
Will it rain in St. Louis tonight?
Unlikely - the evening precipitation chance stays at or below 2%.
When is the UV index highest in St. Louis today?
Around 1 PM, when it reaches 10. From UV 3 upward, sun protection is recommended.

St. Louis hour-by-hour: what to expect

Over the next 24 hours in St. Louis, temperatures range from 74°F (23°C) around 6 AM up to 96°F (35°C) near 3 PM - about 8°F (4°C) above the typical July high of 88°F (31°C).

Precipitation chances stay minimal throughout, so plans can skip the umbrella. UV reaches 10 (1 PM) - sun protection recommended through midday.

The “feels like” column blends humidity and wind into an apparent temperature - see how it works in our feels-like temperature guide. Planning further ahead? Check the St. Louis 14-day forecast or the monthly climate averages.

Hourly forecasts nearby