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Amherst SD Weather - Clear - 59°F
Clear
59°F
Updated 12:28 am
Feels Like 51°F
Humidity 62%
Wind NNW 14 mph
Barometer  29.86 in
Dew Point 46°F
Amherst SD Weather - Clear - 15°C
Clear
15°C
Updated 12:28 am
Feels Like 10°C
Humidity 62%
Wind NNW 23 km/h
Barometer  101.1 kPa
Dew Point 8°C
Amherst, SD Weather and Current Conditionsamherst sd weather forecast

Amherst, SD Weather Forecast

Amherst South Dakota WeatherAmherst, South Dakota Weather Weather Forecast
14 day API weather forecast for Amherst, South Dakota. Note: The 7-day weather forecast for Amherst, SD is the most reliable and accurate weather forecast. This model should only be used as a likely scenario. It is difficult to predict weather more than 7 days ahead.
Amherst, SD Weather Forecast Dated: 1228 AM Sat Sep 12 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.

Saturday, September 12, 2026

Mid-Morning
Amherst Weather - 2026-09-12 - Morning - Cloudy
55°F 13°C
Cloudy
Mid-Afternoon
Amherst Weather - 2026-09-12 - Afternoon - Overcast
68°F 20°C
Overcast
Early-Evening
Amherst Weather - 2026-09-12 - Evening - Overcast
64°F 18°C
Overcast
Pleasant near 68°F 20°C, cloudy in the morning, becoming overcast through the afternoon and evening, with lower humidity and steady pressure. Winds turning from the NW to the NNW at 9 mph 15 km/h.

Sunday, September 13, 2026

Mid-Morning
Amherst Weather - 2026-09-13 - Morning - Sunny
52°F 11°C
Sunny
Mid-Afternoon
Amherst Weather - 2026-09-13 - Afternoon - Sunny
69°F 20°C
Sunny
Early-Evening
Amherst Weather - 2026-09-13 - Evening - Partly Cloudy
65°F 18°C
Partly Cloudy
Comfortable with temperatures reaching 69°F 20°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and barometric pressure falling.

Monday, September 14, 2026

Mid-Morning
Amherst Weather - 2026-09-14 - Morning - Light Showers
54°F 12°C
Light Showers
Mid-Afternoon
Amherst Weather - 2026-09-14 - Afternoon - Scattered Showers
58°F 14°C
Scattered Showers
Early-Evening
Amherst Weather - 2026-09-14 - Evening - Overcast
62°F 17°C
Overcast
Comfortable at 58°F 14°C, locally heavy downpours at times, with increasing humidity and barometric pressure falling. Winds tapering down from SSE 18 mph 29 km/h to SSW 9 mph 15 km/h.

Tuesday, September 15, 2026

Mid-Morning
Amherst Weather - 2026-09-15 - Morning - Sunny
49°F 9°C
Sunny
Mid-Afternoon
Amherst Weather - 2026-09-15 - Afternoon - Sunny
67°F 19°C
Sunny
Early-Evening
Amherst Weather - 2026-09-15 - Evening - Partly Cloudy
65°F 18°C
Partly Cloudy
Cool with a high near 67°F 19°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure. Winds moving from the WNW to the E at 7 mph 11 km/h.

Wednesday, September 16, 2026

Mid-Morning
Amherst Weather - 2026-09-16 - Morning - Scattered Showers
56°F 13°C
Scattered Showers
Mid-Afternoon
Amherst Weather - 2026-09-16 - Afternoon - Light Showers
59°F 15°C
Light Showers
Early-Evening
Amherst Weather - 2026-09-16 - Evening - Overcast
56°F 13°C
Overcast
Refreshing around 59°F 15°C, scattered downpours possible, with increasing humidity and steady pressure. Winds swinging from the SE to the WSW at 5 mph 9 km/h.

Thursday, September 17, 2026

Mid-Morning
Amherst Weather - 2026-09-17 - Morning - Overcast
52°F 11°C
Overcast
Mid-Afternoon
Amherst Weather - 2026-09-17 - Afternoon - Sunny
65°F 18°C
Sunny
Early-Evening
Amherst Weather - 2026-09-17 - Evening - Sunny
65°F 18°C
Sunny
Mildly cool near 65°F 18°C, cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and barometric pressure falling.

Friday, September 18, 2026

Mid-Morning
Amherst Weather - 2026-09-18 - Morning - Sunny
59°F 15°C
Sunny
Mid-Afternoon
Amherst Weather - 2026-09-18 - Afternoon - Sunny
79°F 26°C
Sunny
Early-Evening
Amherst Weather - 2026-09-18 - Evening - Partly Cloudy
79°F 26°C
Partly Cloudy
Comfortable with temperatures reaching 79°F 26°C, sunny in the morning, partly cloudy in the afternoon, and cloudy this evening, with lower humidity and barometric pressure falling. Winds shifting from the SSW to the NW at 7 mph 11 km/h.

Saturday, September 19, 2026

Mid-Morning
Amherst Weather - 2026-09-19 - Morning - Sunny
56°F 14°C
Sunny
Mid-Afternoon
Amherst Weather - 2026-09-19 - Afternoon - Sunny
71°F 22°C
Sunny
Early-Evening
Amherst Weather - 2026-09-19 - Evening - Sunny
68°F 20°C
Sunny
Enjoyable around 71°F 22°C, cloudy in the morning, sunny in the afternoon, and cloudy this evening, with lower humidity and steady pressure. Winds NE at 10 mph 17 km/h.

Sunday, September 20, 2026

Mid-Morning
Amherst Weather - 2026-09-20 - Morning - Cloudy
61°F 16°C
Cloudy
Mid-Afternoon
Amherst Weather - 2026-09-20 - Afternoon - Light Showers
73°F 23°C
Light Showers
Early-Evening
Amherst Weather - 2026-09-20 - Evening - Scattered Showers
69°F 21°C
Scattered Showers
Mild temperatures up to 73°F 23°C, locally heavy downpours at times, with increasing humidity and steady pressure. Winds out of the S at 10 mph 16 km/h.

Monday, September 21, 2026

Mid-Morning
Amherst Weather - 2026-09-21 - Morning - Light Showers
62°F 17°C
Light Showers
Mid-Afternoon
Amherst Weather - 2026-09-21 - Afternoon - Nearby Thunderstorms
71°F 22°C
Nearby Thunderstorms
Early-Evening
Amherst Weather - 2026-09-21 - Evening - Nearby Thunderstorms
64°F 18°C
Nearby Thunderstorms
Mild with a high of 71°F 22°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds moving from the ESE to the SE at 11 mph 17 km/h. Gusts up to 21 mph 34 km/h.

Tuesday, September 22, 2026

Mid-Morning
Amherst Weather - 2026-09-22 - Morning - Cloudy
60°F 15°C
Cloudy
Mid-Afternoon
Amherst Weather - 2026-09-22 - Afternoon - Partly Cloudy
72°F 22°C
Partly Cloudy
Early-Evening
Amherst Weather - 2026-09-22 - Evening - Nearby Thunderstorms
72°F 23°C
Nearby Thunderstorms
Pleasant near 72°F 22°C, locally heavy thunderstorms at times, with lower humidity and steady pressure. Winds swinging from the S to the NE at 6 mph 10 km/h.

Wednesday, September 23, 2026

Mid-Morning
Amherst Weather - 2026-09-23 - Morning - Light Fog
61°F 16°C
Light Fog
Mid-Afternoon
Amherst Weather - 2026-09-23 - Afternoon - Light Showers
60°F 15°C
Light Showers
Early-Evening
Amherst Weather - 2026-09-23 - Evening - Light Showers
58°F 15°C
Light Showers
Cool with a high near 60°F 15°C, dry early, with showers continuing through afternoon and evening, with steady humidity and steady pressure.

Thursday, September 24, 2026

Mid-Morning
Amherst Weather - 2026-09-24 - Morning - Overcast
58°F 14°C
Overcast
Mid-Afternoon
Amherst Weather - 2026-09-24 - Afternoon - Sunny
70°F 21°C
Sunny
Early-Evening
Amherst Weather - 2026-09-24 - Evening - Sunny
69°F 21°C
Sunny
Enjoyable around 70°F 21°C, overcast in the morning, sunny in the afternoon, and partly cloudy this evening, with lower humidity and barometric pressure falling. Winds shifting from the SSE to the SE at 9 mph 15 km/h.

Friday, September 25, 2026

Mid-Morning
Amherst Weather - 2026-09-25 - Morning - Scattered Showers
59°F 15°C
Scattered Showers
Mid-Afternoon
Amherst Weather - 2026-09-25 - Afternoon - Overcast
68°F 20°C
Overcast
Early-Evening
Amherst Weather - 2026-09-25 - Evening - Cloudy
62°F 17°C
Cloudy
Mild temperatures up to 68°F 20°C, scattered downpours possible, with lower humidity and steady pressure. Winds turning from the NNW to the W at 15 mph 23 km/h. Gusts up to 27 mph 43 km/h.

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Weather by the Numbers

Sat, 12th
Amherst SD Weather - Saturday, Sep 12, 2026 - Partly Cloudy
Hi: 68°F 20°C
Lo: 53°F 12°C
Sunrise 07:07 AM
Sunset 07:49 PM
Wind NW 13 mph21 km/h
Dew Point 34°F1°C
uv Index 4
Barometric Pressure 30.06 in1018 mb
POP 3% *
Humidity 34%
Sun, 13th
Amherst SD Weather - Sunday, Sep 13, 2026 - Sunny
Hi: 69°F 21°C
Lo: 49°F 10°C
Sunrise 07:08 AM
Sunset 07:47 PM
Wind NNE 8 mph13 km/h
Dew Point 30°F-1°C
uv Index 1
Barometric Pressure 30.18 in1022 mb
POP 1% *
Humidity 31%
Mon, 14th
Amherst SD Weather - Monday, Sep 14, 2026 - Light Rain Shower
Hi: 65°F 18°C
Lo: 52°F 11°C
Sunrise 07:09 AM
Sunset 07:45 PM
Wind S 18 mph29 km/h
Dew Point 53°F11°C
uv Index 1
Barometric Pressure 29.8 in1009 mb
POP 75% *
Humidity 89%
Tue, 15th
Amherst SD Weather - Tuesday, Sep 15, 2026 - Sunny
Hi: 68°F 20°C
Lo: 49°F 9°C
Sunrise 07:10 AM
Sunset 07:43 PM
Wind NNW 12 mph19 km/h
Dew Point 35°F1°C
uv Index 5
Barometric Pressure 30.09 in1019 mb
POP 1% *
Humidity 38%
Wed, 16th
Amherst SD Weather - Wednesday, Sep 16, 2026 - Patchy Rain Nearby
Hi: 66°F 19°C
Lo: 54°F 12°C
Sunrise 07:12 AM
Sunset 07:41 PM
Wind SE 11 mph18 km/h
Dew Point 44°F7°C
uv Index 4
Barometric Pressure 30.09 in1019 mb
POP 6% *
Humidity 48%
Thu, 17th
Amherst SD Weather - Thursday, Sep 17, 2026 - Partly Cloudy
Hi: 67°F 20°C
Lo: 48°F 9°C
Sunrise 07:13 AM
Sunset 07:39 PM
Wind WNW 4 mph6 km/h
Dew Point 39°F4°C
uv Index 4
Barometric Pressure 30.33 in1027 mb
POP 2% *
Humidity 48%
Fri, 18th
Amherst SD Weather - Friday, Sep 18, 2026 - Sunny
Hi: 83°F 29°C
Lo: 54°F 12°C
Sunrise 07:14 AM
Sunset 07:37 PM
Wind SSW 11 mph18 km/h
Dew Point 43°F6°C
uv Index 6
Barometric Pressure 30.06 in1018 mb
POP 1% *
Humidity 38%
Sat, 19th
Amherst SD Weather - Saturday, Sep 19, 2026 - Overcast
Hi: 73°F 23°C
Lo: 53°F 12°C
Sunrise 07:15 AM
Sunset 07:35 PM
Wind NE 13 mph22 km/h
Dew Point 36°F2°C
uv Index 4
Barometric Pressure 30.15 in1021 mb
POP 2% *
Humidity 34%
Sun, 20th
Amherst SD Weather - Sunday, Sep 20, 2026 - Overcast
Hi: 73°F 23°C
Lo: 57°F 14°C
Sunrise 07:17 AM
Sunset 07:33 PM
Wind SSE 7 mph11 km/h
Dew Point 47°F8°C
uv Index 5
Barometric Pressure 30.03 in1017 mb
POP 36% *
Humidity 43%
Mon, 21st
Amherst SD Weather - Monday, Sep 21, 2026 - Overcast
Hi: 73°F 23°C
Lo: 60°F 16°C
Sunrise 07:18 AM
Sunset 07:31 PM
Wind ESE 9 mph15 km/h
Dew Point 56°F14°C
uv Index 5
Barometric Pressure 29.97 in1015 mb
POP 16% *
Humidity 64%
Tue, 22nd
Amherst SD Weather - Tuesday, Sep 22, 2026 - Light Rain Shower
Hi: 75°F 24°C
Lo: 57°F 14°C
Sunrise 07:19 AM
Sunset 07:29 PM
Wind SSW 10 mph15 km/h
Dew Point 58°F15°C
uv Index 4
Barometric Pressure 29.94 in1014 mb
POP 21% *
Humidity 77%
Wed, 23rd
Amherst SD Weather - Wednesday, Sep 23, 2026 - Light Rain Shower
Hi: 66°F 19°C
Lo: 56°F 14°C
Sunrise 07:20 AM
Sunset 07:27 PM
Wind SSE 7 mph11 km/h
Dew Point 58°F15°C
uv Index 4
Barometric Pressure 29.97 in1015 mb
POP 71% *
Humidity 89%
Thu, 24th
Amherst SD Weather - Thursday, Sep 24, 2026 - Overcast
Hi: 71°F 22°C
Lo: 57°F 14°C
Sunrise 07:22 AM
Sunset 07:25 PM
Wind SSE 11 mph17 km/h
Dew Point 54°F12°C
uv Index 4
Barometric Pressure 29.88 in1012 mb
POP 9% *
Humidity 70%
Fri, 25th
Amherst SD Weather - Friday, Sep 25, 2026 - Overcast
Hi: 69°F 21°C
Lo: 52°F 11°C
Sunrise 07:23 AM
Sunset 07:23 PM
Wind NW 11 mph17 km/h
Dew Point 38°F3°C
uv Index 4
Barometric Pressure 29.83 in1010 mb
POP 10% *
Humidity 40%
* POP = Probability of Precipitation. Data for 12:00 PM.