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Chester SD Weather - Clear - 69°F
Clear
69°F
Updated 3:41 pm
Feels Like 61°F
Humidity 40%
Wind SSE 13 mph
Barometer  30.14 in
Dew Point 44°F
Chester SD Weather - Clear - 21°C
Clear
21°C
Updated 3:41 pm
Feels Like 16°C
Humidity 40%
Wind SSE 21 km/h
Barometer  102 kPa
Dew Point 7°C
Chester, SD Weather and Current Conditionschester sd weather forecast

Chester, SD Weather Forecast

Chester South Dakota WeatherChester, South Dakota Weather Weather Forecast
14 day API forecast for Chester, South Dakota. Note. The 7-day weather forecast for Chester, SD is the most reliable and accurate forecast. This model should only be used as a likely scenario. It is difficult to predict weather more than 7 days in advance.
Chester, SD Weather Forecast Dated: 341 PM Sun Sep 13 2026
Expect a mild stretch with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate.

Sunday, September 13, 2026

Mid-Morning
Chester Weather - 2026-09-13 - Morning - Overcast
55°F 13°C
Overcast
Mid-Afternoon
Chester Weather - 2026-09-13 - Afternoon - Sunny
69°F 20°C
Sunny
Early-Evening
Chester Weather - 2026-09-13 - Evening - Sunny
66°F 19°C
Sunny
Pleasant near 69°F 20°C, overcast in the morning, becoming sunny through the afternoon and evening, with steady humidity and steady pressure. Winds turning from the ENE to the ESE at 11 mph 17 km/h.

Monday, September 14, 2026

Mid-Morning
Chester Weather - 2026-09-14 - Morning - Light Showers
54°F 12°C
Light Showers
Mid-Afternoon
Chester Weather - 2026-09-14 - Afternoon - Scattered Showers
72°F 22°C
Scattered Showers
Early-Evening
Chester Weather - 2026-09-14 - Evening - Light Showers
76°F 25°C
Light Showers
Comfortable with temperatures reaching 72°F 22°C, scattered downpours possible, with steady humidity and barometric pressure falling. Winds tapering down from SSE 19 mph 31 km/h to NW 7 mph 11 km/h.

Tuesday, September 15, 2026

Mid-Morning
Chester Weather - 2026-09-15 - Morning - Overcast
52°F 11°C
Overcast
Mid-Afternoon
Chester Weather - 2026-09-15 - Afternoon - Sunny
68°F 20°C
Sunny
Early-Evening
Chester Weather - 2026-09-15 - Evening - Sunny
66°F 19°C
Sunny
Enjoyable around 68°F 20°C, overcast in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds moving from the NW to the NE at 5 mph 7 km/h.

Wednesday, September 16, 2026

Mid-Morning
Chester Weather - 2026-09-16 - Morning - Overcast
55°F 13°C
Overcast
Mid-Afternoon
Chester Weather - 2026-09-16 - Afternoon - Scattered Showers
52°F 11°C
Scattered Showers
Early-Evening
Chester Weather - 2026-09-16 - Evening - Scattered Showers
50°F 10°C
Scattered Showers
Crisp with a high near 52°F 11°C, periods of heavy rain and gusty conditions, with increasing humidity and steady pressure. Winds out of the SE at 8 mph 13 km/h.

Thursday, September 17, 2026

Mid-Morning
Chester Weather - 2026-09-17 - Morning - Light Fog
56°F 13°C
Light Fog
Mid-Afternoon
Chester Weather - 2026-09-17 - Afternoon - Overcast
75°F 24°C
Overcast
Early-Evening
Chester Weather - 2026-09-17 - Evening - Overcast
73°F 23°C
Overcast
Mild with a high of 75°F 24°C, overcast throughout the day, with lower humidity and barometric pressure falling. Winds shifting from the SE to the SSE at 13 mph 21 km/h. Gusts up to 20 mph 33 km/h.

Friday, September 18, 2026

Mid-Morning
Chester Weather - 2026-09-18 - Morning - Light Showers
62°F 17°C
Light Showers
Mid-Afternoon
Chester Weather - 2026-09-18 - Afternoon - Scattered Showers
78°F 26°C
Scattered Showers
Early-Evening
Chester Weather - 2026-09-18 - Evening - Partly Cloudy
72°F 23°C
Partly Cloudy
Pleasant near 78°F 26°C, locally heavy downpours at times, with lower humidity and barometric pressure falling. Winds turning from the SE to the N at 11 mph 17 km/h.

Saturday, September 19, 2026

Mid-Morning
Chester Weather - 2026-09-19 - Morning - Overcast
61°F 16°C
Overcast
Mid-Afternoon
Chester Weather - 2026-09-19 - Afternoon - Scattered Showers
70°F 21°C
Scattered Showers
Early-Evening
Chester Weather - 2026-09-19 - Evening - Scattered Showers
71°F 22°C
Scattered Showers
Comfortable with temperatures reaching 70°F 21°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure. Winds switching from the NNE to the NE at 7 mph 12 km/h.

Sunday, September 20, 2026

Mid-Morning
Chester Weather - 2026-09-20 - Morning - Light Fog
61°F 16°C
Light Fog
Mid-Afternoon
Chester Weather - 2026-09-20 - Afternoon - Overcast
61°F 16°C
Overcast
Early-Evening
Chester Weather - 2026-09-20 - Evening - Light Showers
60°F 16°C
Light Showers
Cool with a high near 61°F 16°C, mainly dry until evening showers arrive, with steady humidity and steady pressure. Winds moving from the ENE to the E at 11 mph 17 km/h. Gusts up to 20 mph 31 km/h.

Monday, September 21, 2026

Mid-Morning
Chester Weather - 2026-09-21 - Morning - Overcast
52°F 11°C
Overcast
Mid-Afternoon
Chester Weather - 2026-09-21 - Afternoon - Partly Cloudy
63°F 17°C
Partly Cloudy
Early-Evening
Chester Weather - 2026-09-21 - Evening - Partly Cloudy
61°F 17°C
Partly Cloudy
Refreshing around 63°F 17°C, overcast in the morning, cloudy in the afternoon, and sunny this evening, with lower humidity and steady pressure. Winds swinging from the ENE to the E at 7 mph 11 km/h.

Tuesday, September 22, 2026

Mid-Morning
Chester Weather - 2026-09-22 - Morning - Light Fog
51°F 11°C
Light Fog
Mid-Afternoon
Chester Weather - 2026-09-22 - Afternoon - Sunny
66°F 19°C
Sunny
Early-Evening
Chester Weather - 2026-09-22 - Evening - Partly Cloudy
66°F 20°C
Partly Cloudy
Mildly cool near 66°F 19°C, cloudy in the morning, partly cloudy in the afternoon, and cloudy this evening, with lower humidity and barometric pressure falling. Winds shifting from the SE to the SSE at 8 mph 14 km/h.

Wednesday, September 23, 2026

Mid-Morning
Chester Weather - 2026-09-23 - Morning - Sunny
59°F 15°C
Sunny
Mid-Afternoon
Chester Weather - 2026-09-23 - Afternoon - Sunny
77°F 25°C
Sunny
Early-Evening
Chester Weather - 2026-09-23 - Evening - Sunny
72°F 23°C
Sunny
Pleasant near 77°F 25°C, sunny throughout the day, with lower humidity and steady pressure. Winds turning from the SW to the SE at 10 mph 16 km/h.

Thursday, September 24, 2026

Mid-Morning
Chester Weather - 2026-09-24 - Morning - Sunny
55°F 13°C
Sunny
Mid-Afternoon
Chester Weather - 2026-09-24 - Afternoon - Sunny
71°F 21°C
Sunny
Early-Evening
Chester Weather - 2026-09-24 - Evening - Sunny
68°F 20°C
Sunny
Comfortable with temperatures reaching 71°F 21°C, sunny throughout the day, with steady humidity and steady pressure. Winds switching from the SSE to the SE at 12 mph 19 km/h. Gusts up to 23 mph 37 km/h.

Friday, September 25, 2026

Mid-Morning
Chester Weather - 2026-09-25 - Morning - Sunny
58°F 14°C
Sunny
Mid-Afternoon
Chester Weather - 2026-09-25 - Afternoon - Overcast
72°F 22°C
Overcast
Early-Evening
Chester Weather - 2026-09-25 - Evening - Overcast
68°F 20°C
Overcast
Enjoyable around 72°F 22°C, sunny in the morning, overcast in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds out of the S at 19 mph 31 km/h. Gusts up to 30 mph 48 km/h.

Saturday, September 26, 2026

Mid-Morning
Chester Weather - 2026-09-26 - Morning - Sunny
63°F 17°C
Sunny
Mid-Afternoon
Chester Weather - 2026-09-26 - Afternoon - Sunny
79°F 26°C
Sunny
Early-Evening
Chester Weather - 2026-09-26 - Evening - Sunny
75°F 24°C
Sunny
Mild temperatures up to 79°F 26°C, sunny throughout the day, with lower humidity and steady pressure. Winds swinging from the S to the SSE at 14 mph 23 km/h. Gusts up to 26 mph 41 km/h.

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Weather by the Numbers

Sun, 13th
Chester SD Weather - Sunday, Sep 13, 2026 - Sunny
Hi: 69°F 21°C
Lo: 54°F 12°C
Sunrise 07:05 AM
Sunset 07:42 PM
Wind E 10 mph15 km/h
Dew Point 35°F2°C
uv Index 2
Barometric Pressure 30.18 in1022 mb
POP 1% *
Humidity 38%
Mon, 14th
Chester SD Weather - Monday, Sep 14, 2026 - Light Rain Shower
Hi: 80°F 27°C
Lo: 54°F 12°C
Sunrise 07:06 AM
Sunset 07:40 PM
Wind SSE 19 mph31 km/h
Dew Point 55°F13°C
uv Index 1
Barometric Pressure 29.83 in1010 mb
POP 43% *
Humidity 91%
Tue, 15th
Chester SD Weather - Tuesday, Sep 15, 2026 - Cloudy
Hi: 71°F 22°C
Lo: 48°F 9°C
Sunrise 07:07 AM
Sunset 07:38 PM
Wind NNW 10 mph16 km/h
Dew Point 35°F2°C
uv Index 4
Barometric Pressure 30.15 in1021 mb
POP 7% *
Humidity 37%
Wed, 16th
Chester SD Weather - Wednesday, Sep 16, 2026 - Patchy Rain Nearby
Hi: 60°F 15°C
Lo: 50°F 10°C
Sunrise 07:08 AM
Sunset 07:36 PM
Wind SE 10 mph16 km/h
Dew Point 44°F7°C
uv Index 1
Barometric Pressure 30.3 in1026 mb
POP 20% *
Humidity 67%
Thu, 17th
Chester SD Weather - Thursday, Sep 17, 2026 - Cloudy
Hi: 76°F 25°C
Lo: 52°F 11°C
Sunrise 07:10 AM
Sunset 07:34 PM
Wind SE 9 mph14 km/h
Dew Point 57°F14°C
uv Index 4
Barometric Pressure 30.24 in1024 mb
POP 17% *
Humidity 77%
Fri, 18th
Chester SD Weather - Friday, Sep 18, 2026 - Overcast
Hi: 83°F 29°C
Lo: 62°F 16°C
Sunrise 07:11 AM
Sunset 07:32 PM
Wind SSE 12 mph20 km/h
Dew Point 63°F17°C
uv Index 4
Barometric Pressure 29.88 in1012 mb
POP 39% *
Humidity 90%
Sat, 19th
Chester SD Weather - Saturday, Sep 19, 2026 - Overcast
Hi: 73°F 23°C
Lo: 58°F 15°C
Sunrise 07:12 AM
Sunset 07:31 PM
Wind NNE 12 mph19 km/h
Dew Point 56°F13°C
uv Index 4
Barometric Pressure 29.97 in1015 mb
POP 17% *
Humidity 69%
Sun, 20th
Chester SD Weather - Sunday, Sep 20, 2026 - Overcast
Hi: 64°F 18°C
Lo: 59°F 15°C
Sunrise 07:13 AM
Sunset 07:29 PM
Wind E 11 mph18 km/h
Dew Point 53°F11°C
uv Index 4
Barometric Pressure 30.06 in1018 mb
POP 20% *
Humidity 74%
Mon, 21st
Chester SD Weather - Monday, Sep 21, 2026 - Overcast
Hi: 64°F 18°C
Lo: 52°F 11°C
Sunrise 07:14 AM
Sunset 07:27 PM
Wind ENE 8 mph12 km/h
Dew Point 34°F1°C
uv Index 3
Barometric Pressure 30.12 in1020 mb
POP 6% *
Humidity 42%
Tue, 22nd
Chester SD Weather - Tuesday, Sep 22, 2026 - Overcast
Hi: 68°F 20°C
Lo: 49°F 10°C
Sunrise 07:15 AM
Sunset 07:25 PM
Wind SSE 8 mph13 km/h
Dew Point 39°F4°C
uv Index 4
Barometric Pressure 30.09 in1019 mb
POP 4% *
Humidity 49%
Wed, 23rd
Chester SD Weather - Wednesday, Sep 23, 2026 - Sunny
Hi: 78°F 26°C
Lo: 56°F 14°C
Sunrise 07:16 AM
Sunset 07:23 PM
Wind WNW 10 mph16 km/h
Dew Point 55°F13°C
uv Index 6
Barometric Pressure 29.97 in1015 mb
POP 3% *
Humidity 61%
Thu, 24th
Chester SD Weather - Thursday, Sep 24, 2026 - Sunny
Hi: 72°F 22°C
Lo: 52°F 11°C
Sunrise 07:18 AM
Sunset 07:21 PM
Wind SSE 11 mph18 km/h
Dew Point 42°F6°C
uv Index 5
Barometric Pressure 30.12 in1020 mb
POP 1% *
Humidity 45%
Fri, 25th
Chester SD Weather - Friday, Sep 25, 2026 - Sunny
Hi: 73°F 23°C
Lo: 56°F 13°C
Sunrise 07:19 AM
Sunset 07:20 PM
Wind S 18 mph29 km/h
Dew Point 40°F5°C
uv Index 5
Barometric Pressure 30.06 in1018 mb
POP 5% *
Humidity 39%
Sat, 26th
Chester SD Weather - Saturday, Sep 26, 2026 - Sunny
Hi: 80°F 27°C
Lo: 61°F 16°C
Sunrise 07:20 AM
Sunset 07:18 PM
Wind S 15 mph24 km/h
Dew Point 45°F7°C
uv Index 6
Barometric Pressure 30.03 in1017 mb
POP 1% *
Humidity 39%
* POP = Probability of Precipitation. Data for 12:00 PM.