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St. James MO Weather - Clear - 67°F
Clear
67°F
Updated 5:33 am
Feels Like 69°F
Humidity 93%
Wind S 8 mph
Barometer  29.88 in
Dew Point 65°F
St. James MO Weather - Clear - 19°C
Clear
19°C
Updated 5:33 am
Feels Like 21°C
Humidity 93%
Wind S 13 km/h
Barometer  101.1 kPa
Dew Point 18°C
St. James, MO Weather and Current Conditionsst. james mo weather forecast

St. James, MO Weather Forecast

St. James Missouri WeatherSt. James, Missouri Weather Weather Forecast
14 day API St. James, MO weather forecast. Note. Our 7-day weather forecast for St. James, Missouri is our most reliable and accurate forecast. This model should only be used as a likely scenario. Forecasting more than 7 days is difficult.
St. James, MO Weather Forecast Dated: 533 AM Sat Sep 12 2026
Expect a very warm period with plenty of sunshine and mostly dry weather over the coming period. moderate humidity and no major pressure swings will dominate.

Saturday, September 12, 2026

Mid-Morning
St. James Weather - 2026-09-12 - Morning - Sunny
76°F 25°C
Sunny
Mid-Afternoon
St. James Weather - 2026-09-12 - Afternoon - Sunny
92°F 33°C
Sunny
Early-Evening
St. James Weather - 2026-09-12 - Evening - Sunny
84°F 29°C
Sunny
Very hot with temperatures reaching 92°F 33°C, sunny throughout the day, with lower humidity and steady pressure.

Sunday, September 13, 2026

Mid-Morning
St. James Weather - 2026-09-13 - Morning - Overcast
74°F 23°C
Overcast
Mid-Afternoon
St. James Weather - 2026-09-13 - Afternoon - Sunny
91°F 33°C
Sunny
Early-Evening
St. James Weather - 2026-09-13 - Evening - Sunny
83°F 28°C
Sunny
Hot and sweltering around 91°F 33°C, overcast in the morning, becoming sunny through the afternoon and evening, with steady humidity and steady pressure.

Monday, September 14, 2026

Mid-Morning
St. James Weather - 2026-09-14 - Morning - Overcast
66°F 19°C
Overcast
Mid-Afternoon
St. James Weather - 2026-09-14 - Afternoon - Sunny
90°F 32°C
Sunny
Early-Evening
St. James Weather - 2026-09-14 - Evening - Sunny
87°F 31°C
Sunny
Sizzling hot with 90°F 32°C, overcast in the morning, becoming sunny through the afternoon and evening, with lower humidity and barometric pressure falling. Winds turning from the E to the SSE at 9 mph 14 km/h. Gusts up to 22 mph 35 km/h.

Tuesday, September 15, 2026

Mid-Morning
St. James Weather - 2026-09-15 - Morning - Overcast
82°F 28°C
Overcast
Mid-Afternoon
St. James Weather - 2026-09-15 - Afternoon - Overcast
90°F 32°C
Overcast
Early-Evening
St. James Weather - 2026-09-15 - Evening - Overcast
84°F 29°C
Overcast
Sizzling hot near 90°F 32°C with a heat index reaching 94°F 34°C, overcast throughout the day, with steady humidity and steady pressure. Winds switching from the SSW to the NNE at 7 mph 11 km/h.

Wednesday, September 16, 2026

Mid-Morning
St. James Weather - 2026-09-16 - Morning - Sunny
82°F 28°C
Sunny
Mid-Afternoon
St. James Weather - 2026-09-16 - Afternoon - Overcast
97°F 36°C
Overcast
Early-Evening
St. James Weather - 2026-09-16 - Evening - Sunny
87°F 31°C
Sunny
Very hot with a high of 97°F 36°C, sunny in the morning, partly cloudy in the afternoon, and sunny this evening, with steady humidity and steady pressure. Winds moving from the SSW to the SE at 5 mph 8 km/h.

Thursday, September 17, 2026

Mid-Morning
St. James Weather - 2026-09-17 - Morning - Sunny
84°F 29°C
Sunny
Mid-Afternoon
St. James Weather - 2026-09-17 - Afternoon - Cloudy
94°F 35°C
Cloudy
Early-Evening
St. James Weather - 2026-09-17 - Evening - Overcast
85°F 30°C
Overcast
Very hot with temperatures reaching 94°F 35°C, sunny in the morning, overcast in the afternoon, and cloudy this evening, with steady humidity and steady pressure.

Friday, September 18, 2026

Mid-Morning
St. James Weather - 2026-09-18 - Morning - Sunny
81°F 27°C
Sunny
Mid-Afternoon
St. James Weather - 2026-09-18 - Afternoon - Sunny
91°F 33°C
Sunny
Early-Evening
St. James Weather - 2026-09-18 - Evening - Overcast
76°F 25°C
Overcast
Sizzling hot near 91°F 33°C with a heat index reaching 94°F 34°C, sunny in the morning, cloudy in the afternoon, and overcast this evening, with increasing humidity and steady pressure. Winds swinging from the WSW to the NW at 2 mph 4 km/h.

Saturday, September 19, 2026

Mid-Morning
St. James Weather - 2026-09-19 - Morning - Light Fog
62°F 17°C
Light Fog
Mid-Afternoon
St. James Weather - 2026-09-19 - Afternoon - Overcast
67°F 20°C
Overcast
Early-Evening
St. James Weather - 2026-09-19 - Evening - Overcast
64°F 18°C
Overcast
Cool with a high near 67°F 20°C, overcast throughout the day, with steady humidity and steady pressure. Winds shifting from the WNW to the N at 8 mph 13 km/h.

Sunday, September 20, 2026

Mid-Morning
St. James Weather - 2026-09-20 - Morning - Overcast
62°F 16°C
Overcast
Mid-Afternoon
St. James Weather - 2026-09-20 - Afternoon - Sunny
72°F 22°C
Sunny
Early-Evening
St. James Weather - 2026-09-20 - Evening - Partly Cloudy
67°F 19°C
Partly Cloudy
Mild temperatures up to 72°F 22°C, partly cloudy through the afternoon, turning cloudy this evening, with steady humidity and steady pressure. Winds turning from the NNE to the NE at 6 mph 9 km/h.

Monday, September 21, 2026

Mid-Morning
St. James Weather - 2026-09-21 - Morning - Light Fog
59°F 15°C
Light Fog
Mid-Afternoon
St. James Weather - 2026-09-21 - Afternoon - Sunny
73°F 23°C
Sunny
Early-Evening
St. James Weather - 2026-09-21 - Evening - Sunny
65°F 19°C
Sunny
Mild with a high of 73°F 23°C, sunny throughout the day, with lower humidity and barometric pressure falling.

Tuesday, September 22, 2026

Mid-Morning
St. James Weather - 2026-09-22 - Morning - Sunny
63°F 17°C
Sunny
Mid-Afternoon
St. James Weather - 2026-09-22 - Afternoon - Sunny
81°F 27°C
Sunny
Early-Evening
St. James Weather - 2026-09-22 - Evening - Sunny
73°F 23°C
Sunny
Warm and summery near 81°F 27°C, sunny throughout the day, with steady humidity and steady pressure.

Wednesday, September 23, 2026

Mid-Morning
St. James Weather - 2026-09-23 - Morning - Sunny
74°F 24°C
Sunny
Mid-Afternoon
St. James Weather - 2026-09-23 - Afternoon - Sunny
86°F 30°C
Sunny
Early-Evening
St. James Weather - 2026-09-23 - Evening - Sunny
76°F 25°C
Sunny
Balmy with temperatures reaching 86°F 30°C, sunny throughout the day, with steady humidity and steady pressure. Winds switching from the WSW to the NNE at 7 mph 11 km/h. Gusts up to 20 mph 33 km/h.

Thursday, September 24, 2026

Mid-Morning
St. James Weather - 2026-09-24 - Morning - Sunny
61°F 16°C
Sunny
Mid-Afternoon
St. James Weather - 2026-09-24 - Afternoon - Sunny
78°F 26°C
Sunny
Early-Evening
St. James Weather - 2026-09-24 - Evening - Sunny
71°F 22°C
Sunny
Enjoyable around 78°F 26°C, sunny throughout the day, with steady humidity and barometric pressure falling.

Friday, September 25, 2026

Mid-Morning
St. James Weather - 2026-09-25 - Morning - Partly Cloudy
74°F 23°C
Partly Cloudy
Mid-Afternoon
St. James Weather - 2026-09-25 - Afternoon - Overcast
96°F 35°C
Overcast
Early-Evening
St. James Weather - 2026-09-25 - Evening - Sunny
87°F 31°C
Sunny
Hot temperatures near 96°F 35°C, overcast in the morning, partly cloudy in the afternoon, and cloudy this evening, with lower humidity and steady pressure. Winds blowing from the SW at 11 mph 18 km/h. Gusts up to 27 mph 43 km/h.

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Weather by the Numbers

Sat, 12th
St. James MO Weather - Saturday, Sep 12, 2026 - Sunny
Hi: 92°F 33°C
Lo: 66°F 19°C
Sunrise 06:45 AM
Sunset 07:19 PM
Wind NW 4 mph7 km/h
Dew Point 60°F15°C
uv Index 7
Barometric Pressure 29.91 in1013 mb
POP 1% *
Humidity 41%
Sun, 13th
St. James MO Weather - Sunday, Sep 13, 2026 - Overcast
Hi: 92°F 33°C
Lo: 70°F 21°C
Sunrise 06:46 AM
Sunset 07:17 PM
Wind W 4 mph6 km/h
Dew Point 62°F17°C
uv Index 7
Barometric Pressure 30 in1016 mb
POP 12% *
Humidity 50%
Mon, 14th
St. James MO Weather - Monday, Sep 14, 2026 - Patchy Rain Nearby
Hi: 91°F 33°C
Lo: 64°F 18°C
Sunrise 06:47 AM
Sunset 07:16 PM
Wind E 7 mph11 km/h
Dew Point 64°F18°C
uv Index 4
Barometric Pressure 30.09 in1019 mb
POP 11% *
Humidity 60%
Tue, 15th
St. James MO Weather - Tuesday, Sep 15, 2026 - Overcast
Hi: 94°F 34°C
Lo: 77°F 25°C
Sunrise 06:48 AM
Sunset 07:14 PM
Wind SSW 6 mph10 km/h
Dew Point 65°F18°C
uv Index 6
Barometric Pressure 30.06 in1018 mb
POP 12% *
Humidity 54%
Wed, 16th
St. James MO Weather - Wednesday, Sep 16, 2026 - Sunny
Hi: 98°F 36°C
Lo: 76°F 25°C
Sunrise 06:49 AM
Sunset 07:12 PM
Wind SW 10 mph16 km/h
Dew Point 60°F16°C
uv Index 8
Barometric Pressure 30.12 in1020 mb
POP 0% *
Humidity 32%
Thu, 17th
St. James MO Weather - Thursday, Sep 17, 2026 - Sunny
Hi: 97°F 36°C
Lo: 77°F 25°C
Sunrise 06:50 AM
Sunset 07:11 PM
Wind SW 9 mph14 km/h
Dew Point 58°F15°C
uv Index 8
Barometric Pressure 30.06 in1018 mb
POP 4% *
Humidity 31%
Fri, 18th
St. James MO Weather - Friday, Sep 18, 2026 - Sunny
Hi: 91°F 33°C
Lo: 69°F 21°C
Sunrise 06:50 AM
Sunset 07:09 PM
Wind WSW 8 mph13 km/h
Dew Point 62°F17°C
uv Index 8
Barometric Pressure 30.03 in1017 mb
POP 1% *
Humidity 42%
Sat, 19th
St. James MO Weather - Saturday, Sep 19, 2026 - Overcast
Hi: 69°F 21°C
Lo: 59°F 15°C
Sunrise 06:51 AM
Sunset 07:08 PM
Wind NW 9 mph15 km/h
Dew Point 53°F12°C
uv Index 4
Barometric Pressure 30.03 in1017 mb
POP 15% *
Humidity 61%
Sun, 20th
St. James MO Weather - Sunday, Sep 20, 2026 - Sunny
Hi: 73°F 23°C
Lo: 59°F 15°C
Sunrise 06:52 AM
Sunset 07:06 PM
Wind NNE 10 mph16 km/h
Dew Point 47°F8°C
uv Index 6
Barometric Pressure 30.09 in1019 mb
POP 2% *
Humidity 47%
Mon, 21st
St. James MO Weather - Monday, Sep 21, 2026 - Sunny
Hi: 74°F 23°C
Lo: 52°F 11°C
Sunrise 06:53 AM
Sunset 07:05 PM
Wind ENE 6 mph10 km/h
Dew Point 41°F5°C
uv Index 6
Barometric Pressure 30.09 in1019 mb
POP 1% *
Humidity 39%
Tue, 22nd
St. James MO Weather - Tuesday, Sep 22, 2026 - Sunny
Hi: 81°F 27°C
Lo: 53°F 12°C
Sunrise 06:54 AM
Sunset 07:03 PM
Wind WSW 4 mph6 km/h
Dew Point 41°F5°C
uv Index 6
Barometric Pressure 30 in1016 mb
POP 0% *
Humidity 30%
Wed, 23rd
St. James MO Weather - Wednesday, Sep 23, 2026 - Sunny
Hi: 86°F 30°C
Lo: 64°F 18°C
Sunrise 06:55 AM
Sunset 07:01 PM
Wind WNW 8 mph13 km/h
Dew Point 49°F9°C
uv Index 7
Barometric Pressure 29.91 in1013 mb
POP 0% *
Humidity 30%
Thu, 24th
St. James MO Weather - Thursday, Sep 24, 2026 - Sunny
Hi: 79°F 26°C
Lo: 54°F 12°C
Sunrise 06:56 AM
Sunset 07:00 PM
Wind E 6 mph10 km/h
Dew Point 37°F3°C
uv Index 6
Barometric Pressure 30.15 in1021 mb
POP 0% *
Humidity 29%
Fri, 25th
St. James MO Weather - Friday, Sep 25, 2026 - Overcast
Hi: 97°F 36°C
Lo: 64°F 18°C
Sunrise 06:57 AM
Sunset 06:58 PM
Wind SSW 12 mph19 km/h
Dew Point 49°F9°C
uv Index 7
Barometric Pressure 29.97 in1015 mb
POP 9% *
Humidity 28%
* POP = Probability of Precipitation. Data for 12:00 PM.