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St. Charles SD Weather - Light Rain - 69°F
Light Rain
69°F
Updated 2:05 pm
Feels Like 71°F
Humidity 49%
Wind VRB 2 mph
Barometer  30.08 in
Dew Point 50°F
St. Charles SD Weather - Light Rain - 21°C
Light Rain
21°C
Updated 2:05 pm
Feels Like 21°C
Humidity 49%
Wind VRB 3 km/h
Barometer  101.8 kPa
Dew Point 10°C
St. Charles, SD Weather and Current Conditionsst. charles sd weather forecast

St. Charles, SD Weather Forecast

St. Charles South Dakota WeatherSt. Charles, South Dakota Weather Weather Forecast
14 Day API St. Charles, SD Weather Forecast. Note: Our 7 day St. Charles, South Dakota weather forecast is our most reliable, and specific forecast. This model should only be used as a probable scenario. Forecasting more than 7 days ahead is challenging.
St. Charles, SD Weather Forecast Dated: 205 PM Wed Oct 07 2026
Expect a cool pattern with a mix of sun and clouds and mostly dry weather over the coming period. moderate humidity and no major pressure swings will dominate.

Wednesday, October 7, 2026

Mid-Morning
St. Charles Weather - 2026-10-07 - Morning - Sunny
60°F 15°C
Sunny
Mid-Afternoon
St. Charles Weather - 2026-10-07 - Afternoon - Overcast
77°F 25°C
Overcast
Early-Evening
St. Charles Weather - 2026-10-07 - Evening - Overcast
70°F 21°C
Overcast
Pleasant near 77°F 25°C, sunny in the morning, overcast in the afternoon, and cloudy this evening, with lower humidity and steady pressure.

Thursday, October 8, 2026

Mid-Morning
St. Charles Weather - 2026-10-08 - Morning - Cloudy
59°F 15°C
Cloudy
Mid-Afternoon
St. Charles Weather - 2026-10-08 - Afternoon - Overcast
79°F 26°C
Overcast
Early-Evening
St. Charles Weather - 2026-10-08 - Evening - Sunny
73°F 23°C
Sunny
Comfortable with temperatures reaching 79°F 26°C, cloudy in the morning, overcast in the afternoon, and sunny this evening, with steady humidity and barometric pressure falling. Winds turning from the SSE to the E at 9 mph 15 km/h.

Friday, October 9, 2026

Mid-Morning
St. Charles Weather - 2026-10-09 - Morning - Sunny
62°F 17°C
Sunny
Mid-Afternoon
St. Charles Weather - 2026-10-09 - Afternoon - Sunny
91°F 33°C
Sunny
Early-Evening
St. Charles Weather - 2026-10-09 - Evening - Sunny
85°F 29°C
Sunny
Sizzling hot with 91°F 33°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds building from S at 2 mph 3 km/h to SSW at 18 mph 29 km/h. Gusts up to 36 mph 58 km/h.

Saturday, October 10, 2026

Mid-Morning
St. Charles Weather - 2026-10-10 - Morning - Sunny
70°F 21°C
Sunny
Mid-Afternoon
St. Charles Weather - 2026-10-10 - Afternoon - Sunny
87°F 31°C
Sunny
Early-Evening
St. Charles Weather - 2026-10-10 - Evening - Sunny
81°F 27°C
Sunny
Warm temperatures up to 87°F 31°C, sunny throughout the day, with lower humidity and steady pressure. Winds moving from the SSW to the S at 12 mph 20 km/h. Gusts up to 27 mph 43 km/h.

Sunday, October 11, 2026

Mid-Morning
St. Charles Weather - 2026-10-11 - Morning - Partly Cloudy
57°F 14°C
Partly Cloudy
Mid-Afternoon
St. Charles Weather - 2026-10-11 - Afternoon - Overcast
66°F 19°C
Overcast
Early-Evening
St. Charles Weather - 2026-10-11 - Evening - Sunny
60°F 16°C
Sunny
Refreshing around 66°F 19°C, cloudy in the morning, overcast in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds swinging from the NNW to the NNE at 10 mph 16 km/h.

Monday, October 12, 2026

Mid-Morning
St. Charles Weather - 2026-10-12 - Morning - Scattered Showers
50°F 10°C
Scattered Showers
Mid-Afternoon
St. Charles Weather - 2026-10-12 - Afternoon - Sunny
63°F 17°C
Sunny
Early-Evening
St. Charles Weather - 2026-10-12 - Evening - Sunny
57°F 14°C
Sunny
Mildly cool near 63°F 17°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds shifting from the NNE to the N at 11 mph 18 km/h.

Tuesday, October 13, 2026

Mid-Morning
St. Charles Weather - 2026-10-13 - Morning - Overcast
42°F 6°C
Overcast
Mid-Afternoon
St. Charles Weather - 2026-10-13 - Afternoon - Sunny
55°F 13°C
Sunny
Early-Evening
St. Charles Weather - 2026-10-13 - Evening - Overcast
52°F 11°C
Overcast
Chilly near 55°F 13°C, overcast in the morning, cloudy in the afternoon, and overcast this evening, with lower humidity and barometric pressure falling. Winds turning from the ESE to the SE at 8 mph 12 km/h.

Wednesday, October 14, 2026

Mid-Morning
St. Charles Weather - 2026-10-14 - Morning - Overcast
50°F 10°C
Overcast
Mid-Afternoon
St. Charles Weather - 2026-10-14 - Afternoon - Overcast
66°F 19°C
Overcast
Early-Evening
St. Charles Weather - 2026-10-14 - Evening - Drizzle
65°F 19°C
Drizzle
Cool with a high near 66°F 19°C, mainly dry until evening showers arrive, with steady humidity and barometric pressure falling. Winds out of the S at 18 mph 30 km/h. Gusts up to 33 mph 52 km/h.

Thursday, October 15, 2026

Mid-Morning
St. Charles Weather - 2026-10-15 - Morning - Sunny
68°F 20°C
Sunny
Mid-Afternoon
St. Charles Weather - 2026-10-15 - Afternoon - Overcast
53°F 11°C
Overcast
Early-Evening
St. Charles Weather - 2026-10-15 - Evening - Overcast
45°F 7°C
Overcast
Brisk around 53°F 11°C, sunny in the morning, becoming overcast through the afternoon and evening, with steady humidity and barometric pressure rising. Winds moving from the SSW to the WNW at 22 mph 35 km/h. Gusts up to 33 mph 52 km/h.

Friday, October 16, 2026

Mid-Morning
St. Charles Weather - 2026-10-16 - Morning - Scattered Showers
40°F 4°C
Scattered Showers
Mid-Afternoon
St. Charles Weather - 2026-10-16 - Afternoon - Overcast
43°F 6°C
Overcast
Early-Evening
St. Charles Weather - 2026-10-16 - Evening - Overcast
43°F 6°C
Overcast
Nippy around 43°F 6°C, periods of heavy rain and gusty conditions, with lower humidity and barometric pressure rising. Winds swinging from the WNW to the NW at 20 mph 33 km/h. Gusts up to 33 mph 53 km/h.

Saturday, October 17, 2026

Mid-Morning
St. Charles Weather - 2026-10-17 - Morning - Scattered Showers
42°F 6°C
Scattered Showers
Mid-Afternoon
St. Charles Weather - 2026-10-17 - Afternoon - Scattered Showers
44°F 7°C
Scattered Showers
Early-Evening
St. Charles Weather - 2026-10-17 - Evening - Overcast
44°F 6°C
Overcast
Biting cold near 44°F 7°C, scattered downpours possible, with steady humidity and steady pressure. Winds out of the NW at 15 mph 24 km/h. Gusts up to 20 mph 31 km/h.

Sunday, October 18, 2026

Mid-Morning
St. Charles Weather - 2026-10-18 - Morning - Sunny
42°F 6°C
Sunny
Mid-Afternoon
St. Charles Weather - 2026-10-18 - Afternoon - Sunny
54°F 12°C
Sunny
Early-Evening
St. Charles Weather - 2026-10-18 - Evening - Sunny
49°F 9°C
Sunny
Crisp with a high near 54°F 12°C, sunny throughout the day, with lower humidity and steady pressure. Winds turning from the NW to the E at 5 mph 7 km/h.

Monday, October 19, 2026

Mid-Morning
St. Charles Weather - 2026-10-19 - Morning - Sunny
49°F 10°C
Sunny
Mid-Afternoon
St. Charles Weather - 2026-10-19 - Afternoon - Sunny
67°F 19°C
Sunny
Early-Evening
St. Charles Weather - 2026-10-19 - Evening - Sunny
61°F 16°C
Sunny
Refreshing around 67°F 19°C, sunny throughout the day, with steady humidity and barometric pressure falling. Winds switching from the SSW to the S at 8 mph 13 km/h.

Tuesday, October 20, 2026

Mid-Morning
St. Charles Weather - 2026-10-20 - Morning - Sunny
57°F 14°C
Sunny
Mid-Afternoon
St. Charles Weather - 2026-10-20 - Afternoon - Sunny
72°F 22°C
Sunny
Early-Evening
St. Charles Weather - 2026-10-20 - Evening - Sunny
66°F 19°C
Sunny
Mild temperatures up to 72°F 22°C, sunny throughout the day, with lower humidity and steady pressure. Winds moving from the SSW to the W at 7 mph 12 km/h.

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Weather by the Numbers

Wed, 7th
St. Charles SD Weather - Wednesday, Oct 7, 2026 - Overcast
Hi: 77°F 25°C
Lo: 57°F 14°C
Sunrise 07:41 AM
Sunset 07:07 PM
Wind N 5 mph8 km/h
Dew Point 43°F6°C
uv Index 3
Barometric Pressure 30.03 in1017 mb
POP 10% *
Humidity 37%
Thu, 8th
St. Charles SD Weather - Thursday, Oct 8, 2026 - Partly Cloudy
Hi: 81°F 27°C
Lo: 56°F 14°C
Sunrise 07:42 AM
Sunset 07:05 PM
Wind SSE 10 mph16 km/h
Dew Point 49°F9°C
uv Index 3
Barometric Pressure 29.94 in1014 mb
POP 3% *
Humidity 44%
Fri, 9th
St. Charles SD Weather - Friday, Oct 9, 2026 - Sunny
Hi: 93°F 34°C
Lo: 58°F 14°C
Sunrise 07:43 AM
Sunset 07:03 PM
Wind SSE 9 mph15 km/h
Dew Point 53°F12°C
uv Index 3
Barometric Pressure 29.71 in1006 mb
POP 1% *
Humidity 43%
Sat, 10th
St. Charles SD Weather - Saturday, Oct 10, 2026 - Sunny
Hi: 88°F 31°C
Lo: 70°F 21°C
Sunrise 07:44 AM
Sunset 07:01 PM
Wind SSW 22 mph35 km/h
Dew Point 47°F8°C
uv Index 3
Barometric Pressure 29.59 in1002 mb
POP 1% *
Humidity 31%
Sun, 11th
St. Charles SD Weather - Sunday, Oct 11, 2026 - Overcast
Hi: 74°F 23°C
Lo: 55°F 13°C
Sunrise 07:45 AM
Sunset 07:00 PM
Wind N 13 mph21 km/h
Dew Point 47°F8°C
uv Index 4
Barometric Pressure 29.83 in1010 mb
POP 13% *
Humidity 54%
Mon, 12th
St. Charles SD Weather - Monday, Oct 12, 2026 - Light Rain Shower
Hi: 65°F 18°C
Lo: 48°F 9°C
Sunrise 07:47 AM
Sunset 06:58 PM
Wind N 9 mph14 km/h
Dew Point 43°F6°C
uv Index 3
Barometric Pressure 29.88 in1012 mb
POP 17% *
Humidity 59%
Tue, 13th
St. Charles SD Weather - Tuesday, Oct 13, 2026 - Overcast
Hi: 56°F 13°C
Lo: 40°F 5°C
Sunrise 07:48 AM
Sunset 06:56 PM
Wind NNE 7 mph12 km/h
Dew Point 34°F1°C
uv Index 2
Barometric Pressure 30.24 in1024 mb
POP 5% *
Humidity 57%
Wed, 14th
St. Charles SD Weather - Wednesday, Oct 14, 2026 - Moderate Rain
Hi: 68°F 20°C
Lo: 49°F 9°C
Sunrise 07:49 AM
Sunset 06:55 PM
Wind SSE 20 mph32 km/h
Dew Point 49°F9°C
uv Index 3
Barometric Pressure 29.77 in1008 mb
POP 70% *
Humidity 75%
Thu, 15th
St. Charles SD Weather - Thursday, Oct 15, 2026 - Sunny
Hi: 70°F 21°C
Lo: 42°F 6°C
Sunrise 07:50 AM
Sunset 06:53 PM
Wind WSW 19 mph31 km/h
Dew Point 56°F13°C
uv Index 5
Barometric Pressure 29.44 in997 mb
POP 17% *
Humidity 82%
Fri, 16th
St. Charles SD Weather - Friday, Oct 16, 2026 - Overcast
Hi: 43°F 6°C
Lo: 39°F 4°C
Sunrise 07:51 AM
Sunset 06:51 PM
Wind WNW 22 mph35 km/h
Dew Point 37°F3°C
uv Index 2
Barometric Pressure 30.06 in1018 mb
POP 28% *
Humidity 87%
Sat, 17th
St. Charles SD Weather - Saturday, Oct 17, 2026 - Patchy Rain Nearby
Hi: 45°F 7°C
Lo: 40°F 4°C
Sunrise 07:52 AM
Sunset 06:50 PM
Wind NW 17 mph27 km/h
Dew Point 34°F1°C
uv Index 2
Barometric Pressure 30.21 in1023 mb
POP 18% *
Humidity 69%
Sun, 18th
St. Charles SD Weather - Sunday, Oct 18, 2026 - Sunny
Hi: 55°F 13°C
Lo: 39°F 4°C
Sunrise 07:54 AM
Sunset 06:48 PM
Wind NW 9 mph14 km/h
Dew Point 35°F1°C
uv Index 3
Barometric Pressure 30.21 in1023 mb
POP 3% *
Humidity 58%
Mon, 19th
St. Charles SD Weather - Monday, Oct 19, 2026 - Sunny
Hi: 68°F 20°C
Lo: 44°F 7°C
Sunrise 07:55 AM
Sunset 06:47 PM
Wind SSW 9 mph15 km/h
Dew Point 43°F6°C
uv Index 5
Barometric Pressure 30.06 in1018 mb
POP 3% *
Humidity 54%
Tue, 20th
St. Charles SD Weather - Tuesday, Oct 20, 2026 - Sunny
Hi: 74°F 23°C
Lo: 53°F 12°C
Sunrise 07:56 AM
Sunset 06:45 PM
Wind S 9 mph15 km/h
Dew Point 53°F11°C
uv Index 5
Barometric Pressure 30.03 in1017 mb
POP 4% *
Humidity 62%
* POP = Probability of Precipitation. Data for 12:00 PM.