Weather forecast for 10 daysSaint John, MO

Weather forecast for the weekend

Sunday Oct 18, 2026

66°F
41°F

Sunny

Precip. probability: 3%
Precipitation: 0"
Wind: 8mphSSE 162°
Humidity: 50%
UV index: 5
Sunrise: 7:13 am CDT
Sunset: 6:19 pm CDT
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Tomorrow, on Sunday, October 18, sunny and dry conditions are anticipated.
The maximum temperature will be a comfortable 66.2°F, while the minimum temperature will be a cold 41°F.
Sunrise will be at 7:13 am and sunset at 6:19 pm; tomorrow's daylight will last for 11h and 5min.

10-day overview

Daily temperatures

Warmest day: Sunday 25.10. 81°C.
Coldest day: tomorrow 66°C.

Chance of precipitation

Highest chance: 5%.

Long-term weather forecast

Saturday
Oct 17, 2026

min.
39°F

Clear

Precip. probability: 3%
Precipitation: 0"
Wind: 4mphSE 143°
Humidity: 71%
UV index: 0
Sunrise: 7:12 am CDT
Sunset: 6:20 pm CDT
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Sunday
Oct 18, 2026

66°F
41°F

Sunny

Precip. probability: 3%
Precipitation: 0"
Wind: 8mphSSE 162°
Humidity: 50%
UV index: 5
Sunrise: 7:13 am CDT
Sunset: 6:19 pm CDT
details ▼

Monday
Oct 19, 2026

70°F
45°F

Mostly Sunny

Precip. probability: 5%
Precipitation: 0"
Wind: 4mphSSE 160°
Humidity: 51%
UV index: 5
Sunrise: 7:14 am CDT
Sunset: 6:17 pm CDT
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Tuesday
Oct 20, 2026

72°F
46°F

Partly Cloudy

Precip. probability: 5%
Precipitation: 0"
Wind: 4mphESE 122°
Humidity: 50%
UV index: 4
Sunrise: 7:15 am CDT
Sunset: 6:16 pm CDT
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Wednesday
Oct 21, 2026

75°F
45°F

Sunny

Precip. probability: 5%
Precipitation: 0"
Wind: 3mphS 177°
Humidity: 48%
UV index: 4
Sunrise: 7:16 am CDT
Sunset: 6:14 pm CDT
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Thursday
Oct 22, 2026

75°F
46°F

Sunny

Precip. probability: 5%
Precipitation: 0"
Wind: 4mphNE 48°
Humidity: 51%
UV index: 4
Sunrise: 7:17 am CDT
Sunset: 6:13 pm CDT
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Friday
Oct 23, 2026

77°F
48°F

Sunny

Precip. probability: 5%
Precipitation: 0"
Wind: 6mphESE 123°
Humidity: 47%
UV index: 4
Sunrise: 7:19 am CDT
Sunset: 6:12 pm CDT
details ▼

Saturday
Oct 24, 2026

79°F
48°F

Partly Cloudy

Precip. probability: 5%
Precipitation: 0"
Wind: 7mphSE 145°
Humidity: 47%
UV index: 4
Sunrise: 7:20 am CDT
Sunset: 6:11 pm CDT
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Sunday
Oct 25, 2026

81°F
52°F

Partly Cloudy

Precip. probability: 4%
Precipitation: 0"
Wind: 6mphSSW 198°
Humidity: 46%
UV index: 4
Sunrise: 7:21 am CDT
Sunset: 6:09 pm CDT
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Monday
Oct 26, 2026

79°F
50°F

Partly Cloudy

Precip. probability: 5%
Precipitation: 0"
Wind: 6mphS 170°
Humidity: 50%
UV index: 4
Sunrise: 7:22 am CDT
Sunset: 6:08 pm CDT
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Over the next ten days, conditions will reflect that a combination of dry and sunny and gloomy weather is predicted.
Rain is not forecasted in Saint John in the upcoming period.
Temperature fluctuation will be noticeable in the upcoming period. Highs will range from 66.2°F to 80.6°F, while the lowest nightly temperature differences will be also quite pronounced, as temperatures overnight will fluctuate from 39.2°F up to 51.8°F.
With the highest temperature of 80.6°F, next Sunday will be the warmest day; expect the coldest day on Sunday with a high of 66.2°F.

Updated: Oct 17, 2026 @ 23:34:12 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate