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Westerville SD Weather - Clear - 69°F
Clear
69°F
Updated 12:56 pm
Feels Like 63°F
Humidity 49%
Wind N 14 mph
Barometer  30.09 in
Dew Point 50°F
Westerville SD Weather - Clear - 21°C
Clear
21°C
Updated 12:56 pm
Feels Like 17°C
Humidity 49%
Wind N 23 km/h
Barometer  101.8 kPa
Dew Point 10°C
Westerville, SD Weather and Current Conditionswesterville sd weather forecast

Westerville, SD Weather Forecast

Westerville South Dakota WeatherWesterville, South Dakota Weather Weather Forecast
14 day API forecast for Westerville, South Dakota. Note. The 7-day weather forecast for Westerville, 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.
Westerville, SD Weather Forecast Dated: 1256 PM Sat Sep 12 2026
Expect a mild stretch with a mix of sun and clouds and frequent chances of rain over the coming period. moderate humidity and no major pressure swings will dominate.

Saturday, September 12, 2026

Mid-Morning
Westerville Weather - 2026-09-12 - Morning - Drizzle
62°F 17°C
Drizzle
Mid-Afternoon
Westerville Weather - 2026-09-12 - Afternoon - Drizzle
74°F 23°C
Drizzle
Early-Evening
Westerville Weather - 2026-09-12 - Evening - Cloudy
71°F 22°C
Cloudy
Pleasant near 74°F 23°C, intermittent showers through midday, easing by evening, with lower humidity and steady pressure. Winds easing from N 15 mph 24 km/h to NW 7 mph 11 km/h.

Sunday, September 13, 2026

Mid-Morning
Westerville Weather - 2026-09-13 - Morning - Overcast
59°F 15°C
Overcast
Mid-Afternoon
Westerville Weather - 2026-09-13 - Afternoon - Overcast
77°F 25°C
Overcast
Early-Evening
Westerville Weather - 2026-09-13 - Evening - Overcast
71°F 22°C
Overcast
Comfortable with temperatures reaching 77°F 25°C, overcast throughout the day, with steady humidity and steady pressure. Winds switching from the E to the ESE at 12 mph 19 km/h.

Monday, September 14, 2026

Mid-Morning
Westerville Weather - 2026-09-14 - Morning - Light Showers
57°F 14°C
Light Showers
Mid-Afternoon
Westerville Weather - 2026-09-14 - Afternoon - Overcast
69°F 20°C
Overcast
Early-Evening
Westerville Weather - 2026-09-14 - Evening - Heavy Rain Showers
75°F 24°C
Heavy Rain Showers
Enjoyable around 69°F 20°C, passing showers during morning and evening, with a dry break midday, with steady humidity and barometric pressure falling. Winds decreasing from SE 22 mph 35 km/h to S 9 mph 14 km/h.

Tuesday, September 15, 2026

Mid-Morning
Westerville Weather - 2026-09-15 - Morning - Overcast
57°F 14°C
Overcast
Mid-Afternoon
Westerville Weather - 2026-09-15 - Afternoon - Partly Cloudy
73°F 23°C
Partly Cloudy
Early-Evening
Westerville Weather - 2026-09-15 - Evening - Overcast
71°F 22°C
Overcast
Mild temperatures up to 73°F 23°C, overcast in the morning, partly cloudy in the afternoon, and overcast this evening, with lower humidity and steady pressure.

Wednesday, September 16, 2026

Mid-Morning
Westerville Weather - 2026-09-16 - Morning - Overcast
59°F 15°C
Overcast
Mid-Afternoon
Westerville Weather - 2026-09-16 - Afternoon - Scattered Showers
55°F 13°C
Scattered Showers
Early-Evening
Westerville Weather - 2026-09-16 - Evening - Scattered Showers
55°F 13°C
Scattered Showers
Brisk around 55°F 13°C, scattered downpours possible, with steady humidity and barometric pressure rising. Winds swinging from the E to the ESE at 6 mph 10 km/h.

Thursday, September 17, 2026

Mid-Morning
Westerville Weather - 2026-09-17 - Morning - Fog
60°F 16°C
Fog
Mid-Afternoon
Westerville Weather - 2026-09-17 - Afternoon - Overcast
69°F 20°C
Overcast
Early-Evening
Westerville Weather - 2026-09-17 - Evening - Overcast
64°F 17°C
Overcast
Pleasant near 69°F 20°C, overcast throughout the day, with lower humidity and steady pressure.

Friday, September 18, 2026

Mid-Morning
Westerville Weather - 2026-09-18 - Morning - Scattered Showers
49°F 10°C
Scattered Showers
Mid-Afternoon
Westerville Weather - 2026-09-18 - Afternoon - Light Showers
50°F 10°C
Light Showers
Early-Evening
Westerville Weather - 2026-09-18 - Evening - Light Showers
52°F 11°C
Light Showers
Chilly near 50°F 10°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds shifting from the SW to the NW at 8 mph 12 km/h.

Saturday, September 19, 2026

Mid-Morning
Westerville Weather - 2026-09-19 - Morning - Light Fog
56°F 13°C
Light Fog
Mid-Afternoon
Westerville Weather - 2026-09-19 - Afternoon - Partly Cloudy
68°F 20°C
Partly Cloudy
Early-Evening
Westerville Weather - 2026-09-19 - Evening - Partly Cloudy
67°F 19°C
Partly Cloudy
Enjoyable around 68°F 20°C, sunny in the morning, partly cloudy in the afternoon, and sunny this evening, with lower humidity and steady pressure.

Sunday, September 20, 2026

Mid-Morning
Westerville Weather - 2026-09-20 - Morning - Sunny
57°F 14°C
Sunny
Mid-Afternoon
Westerville Weather - 2026-09-20 - Afternoon - Sunny
69°F 20°C
Sunny
Early-Evening
Westerville Weather - 2026-09-20 - Evening - Sunny
67°F 19°C
Sunny
Mild temperatures up to 69°F 20°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds SSE at 8 mph 12 km/h.

Monday, September 21, 2026

Mid-Morning
Westerville Weather - 2026-09-21 - Morning - Sunny
60°F 15°C
Sunny
Mid-Afternoon
Westerville Weather - 2026-09-21 - Afternoon - Sunny
75°F 24°C
Sunny
Early-Evening
Westerville Weather - 2026-09-21 - Evening - Sunny
75°F 24°C
Sunny
Mild with a high of 75°F 24°C, sunny through the afternoon, turning cloudy this evening, with steady humidity and barometric pressure falling. Winds switching from the S to the SSW at 13 mph 21 km/h. Gusts up to 26 mph 42 km/h.

Tuesday, September 22, 2026

Mid-Morning
Westerville Weather - 2026-09-22 - Morning - Sunny
64°F 18°C
Sunny
Mid-Afternoon
Westerville Weather - 2026-09-22 - Afternoon - Sunny
82°F 28°C
Sunny
Early-Evening
Westerville Weather - 2026-09-22 - Evening - Sunny
76°F 24°C
Sunny
Warm and summery near 82°F 28°C, sunny throughout the day, with steady humidity and steady pressure.

Wednesday, September 23, 2026

Mid-Morning
Westerville Weather - 2026-09-23 - Morning - Sunny
59°F 15°C
Sunny
Mid-Afternoon
Westerville Weather - 2026-09-23 - Afternoon - Sunny
69°F 20°C
Sunny
Early-Evening
Westerville Weather - 2026-09-23 - Evening - Sunny
65°F 19°C
Sunny
Comfortable with temperatures reaching 69°F 20°C, sunny throughout the day, with steady humidity and steady pressure. Winds moving from the NW to the SE at 7 mph 11 km/h.

Thursday, September 24, 2026

Mid-Morning
Westerville Weather - 2026-09-24 - Morning - Sunny
52°F 11°C
Sunny
Mid-Afternoon
Westerville Weather - 2026-09-24 - Afternoon - Sunny
68°F 20°C
Sunny
Early-Evening
Westerville Weather - 2026-09-24 - Evening - Sunny
68°F 20°C
Sunny
Enjoyable around 68°F 20°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and barometric pressure falling. Winds swinging from the ESE to the SE at 15 mph 23 km/h. Gusts up to 29 mph 47 km/h.

Friday, September 25, 2026

Mid-Morning
Westerville Weather - 2026-09-25 - Morning - Sunny
64°F 18°C
Sunny
Mid-Afternoon
Westerville Weather - 2026-09-25 - Afternoon - Overcast
73°F 23°C
Overcast
Early-Evening
Westerville Weather - 2026-09-25 - Evening - Overcast
61°F 16°C
Overcast
Mild temperatures up to 73°F 23°C, sunny in the morning, overcast in the afternoon, and cloudy this evening, with steady humidity and barometric pressure rising. Winds picking up from W at 9 mph 14 km/h to NNE at 17 mph 27 km/h. Gusts up to 26 mph 42 km/h.

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Weather by the Numbers

Sat, 12th
Westerville SD Weather - Saturday, Sep 12, 2026 - Moderate Rain At Times
Hi: 75°F 24°C
Lo: 61°F 16°C
Sunrise 07:04 AM
Sunset 07:43 PM
Wind NNW 12 mph19 km/h
Dew Point 48°F9°C
uv Index 5
Barometric Pressure 30.03 in1017 mb
POP 36% *
Humidity 46%
Sun, 13th
Westerville SD Weather - Sunday, Sep 13, 2026 - Overcast
Hi: 77°F 25°C
Lo: 57°F 14°C
Sunrise 07:06 AM
Sunset 07:41 PM
Wind ESE 12 mph20 km/h
Dew Point 37°F3°C
uv Index 5
Barometric Pressure 30.12 in1020 mb
POP 9% *
Humidity 29%
Mon, 14th
Westerville SD Weather - Monday, Sep 14, 2026 - Light Rain Shower
Hi: 76°F 24°C
Lo: 56°F 13°C
Sunrise 07:07 AM
Sunset 07:39 PM
Wind SSE 21 mph33 km/h
Dew Point 60°F15°C
uv Index 3
Barometric Pressure 29.8 in1009 mb
POP 75% *
Humidity 93%
Tue, 15th
Westerville SD Weather - Tuesday, Sep 15, 2026 - Partly Cloudy
Hi: 73°F 23°C
Lo: 57°F 14°C
Sunrise 07:08 AM
Sunset 07:38 PM
Wind N 8 mph13 km/h
Dew Point 42°F5°C
uv Index 5
Barometric Pressure 30.12 in1020 mb
POP 5% *
Humidity 40%
Wed, 16th
Westerville SD Weather - Wednesday, Sep 16, 2026 - Light Rain Shower
Hi: 65°F 18°C
Lo: 53°F 12°C
Sunrise 07:09 AM
Sunset 07:36 PM
Wind ENE 8 mph12 km/h
Dew Point 51°F11°C
uv Index 3
Barometric Pressure 30.24 in1024 mb
POP 60% *
Humidity 91%
Thu, 17th
Westerville SD Weather - Thursday, Sep 17, 2026 - Overcast
Hi: 69°F 21°C
Lo: 52°F 11°C
Sunrise 07:10 AM
Sunset 07:34 PM
Wind NNE 6 mph9 km/h
Dew Point 57°F14°C
uv Index 4
Barometric Pressure 30.21 in1023 mb
POP 20% *
Humidity 76%
Fri, 18th
Westerville SD Weather - Friday, Sep 18, 2026 - Light Rain Shower
Hi: 55°F 13°C
Lo: 49°F 9°C
Sunrise 07:11 AM
Sunset 07:32 PM
Wind NNW 9 mph14 km/h
Dew Point 48°F9°C
uv Index 2
Barometric Pressure 30.18 in1022 mb
POP 77% *
Humidity 97%
Sat, 19th
Westerville SD Weather - Saturday, Sep 19, 2026 - Sunny
Hi: 69°F 21°C
Lo: 54°F 12°C
Sunrise 07:12 AM
Sunset 07:30 PM
Wind ESE 6 mph10 km/h
Dew Point 52°F11°C
uv Index 5
Barometric Pressure 30.21 in1023 mb
POP 6% *
Humidity 69%
Sun, 20th
Westerville SD Weather - Sunday, Sep 20, 2026 - Sunny
Hi: 70°F 21°C
Lo: 54°F 12°C
Sunrise 07:13 AM
Sunset 07:29 PM
Wind SSE 7 mph11 km/h
Dew Point 47°F9°C
uv Index 5
Barometric Pressure 30.21 in1023 mb
POP 3% *
Humidity 55%
Mon, 21st
Westerville SD Weather - Monday, Sep 21, 2026 - Sunny
Hi: 77°F 25°C
Lo: 57°F 14°C
Sunrise 07:14 AM
Sunset 07:27 PM
Wind S 17 mph27 km/h
Dew Point 48°F9°C
uv Index 6
Barometric Pressure 30 in1016 mb
POP 2% *
Humidity 50%
Tue, 22nd
Westerville SD Weather - Tuesday, Sep 22, 2026 - Sunny
Hi: 84°F 29°C
Lo: 60°F 15°C
Sunrise 07:15 AM
Sunset 07:25 PM
Wind S 4 mph7 km/h
Dew Point 47°F9°C
uv Index 6
Barometric Pressure 29.83 in1010 mb
POP 1% *
Humidity 39%
Wed, 23rd
Westerville SD Weather - Wednesday, Sep 23, 2026 - Sunny
Hi: 69°F 20°C
Lo: 57°F 14°C
Sunrise 07:16 AM
Sunset 07:23 PM
Wind NNW 12 mph19 km/h
Dew Point 37°F3°C
uv Index 5
Barometric Pressure 30.09 in1019 mb
POP 1% *
Humidity 35%
Thu, 24th
Westerville SD Weather - Thursday, Sep 24, 2026 - Sunny
Hi: 70°F 21°C
Lo: 50°F 10°C
Sunrise 07:18 AM
Sunset 07:21 PM
Wind SE 15 mph24 km/h
Dew Point 36°F2°C
uv Index 5
Barometric Pressure 30.09 in1019 mb
POP 1% *
Humidity 39%
Fri, 25th
Westerville SD Weather - Friday, Sep 25, 2026 - Sunny
Hi: 74°F 24°C
Lo: 53°F 11°C
Sunrise 07:19 AM
Sunset 07:20 PM
Wind NNW 14 mph23 km/h
Dew Point 48°F9°C
uv Index 6
Barometric Pressure 29.85 in1011 mb
POP 6% *
Humidity 44%
* POP = Probability of Precipitation. Data for 12:00 PM.