What is the weather in Erwin right now?

Current weather in Erwin is clear sky.

Where can I find the hourly weather forecast for Erwin?

This page shows hourly weather forecast for Erwin, including temperature, wind, precipitation, humidity and cloud cover.

Is the weather forecast for Erwin updated regularly?

Weather data for Erwin is updated regularly with the latest available observations and forecasts.

Now · 6:27 PM

Erwin Weather & Hourly Forecast

United States · South Dakota · 57233

80°F

Sunny

Feels like: 75°F

💧 Humidity 33% 🌡 Pressure 29.91 inHg 💨 Wind 9 mph 👁 Visibility 32.7 mi ☁ Clouds 0% ☀️ UV index 0.9 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Erwin

Today

7:00 PM

Sunny

77° 💧 None 💨 7 mph H 40%29.91 inHg

10:00 PM

Clear night

67° 💧 None 💨 6 mph H 55%29.97 inHg

Tomorrow

1:00 AM

Clear night

63° 💧 None 💨 5 mph H 66%30.00 inHg

4:00 AM

Clear night

61° 💧 None 💨 5 mph H 71%30.00 inHg

7:00 AM

Mostly clear night

62° 💧 0.000 in 💨 7 mph H 70%30.06 inHg

10:00 AM

Mostly sunny

68° 💧 None 💨 14 mph H 55%30.09 inHg

1:00 PM

Sunny

73° 💧 None 💨 13 mph H 47%30.09 inHg

4:00 PM

Sunny

75° 💧 None 💨 11 mph H 40%30.06 inHg

7:00 PM

Sunny

72° 💧 None 💨 5 mph H 47%30.03 inHg

10:00 PM

Partly cloudy night

64° 💧 None 💨 3 mph H 70%30.06 inHg

Thursday

1:00 AM

Clear night

60° 💧 0.000 in 💨 3 mph H 75%30.06 inHg

4:00 AM

Clear night

60° 💧 None 💨 6 mph H 70%30.03 inHg

7:00 AM

Clear night

59° 💧 None 💨 7 mph H 69%30.00 inHg

10:00 AM

Sunny

70° 💧 None 💨 7 mph H 55%30.00 inHg

1:00 PM

Sunny

79° 💧 None 💨 16 mph H 38%29.97 inHg

4:00 PM

Sunny

81° 💧 None 💨 17 mph H 36%29.85 inHg

Today

7:00 PM

Sunny

77° 💧 None 💨 7 mph H 40%29.91 inHg

8:00 PM

Clear night

72° 💧 None 💨 5 mph H 46%29.94 inHg

9:00 PM

Clear night

68° 💧 None 💨 5 mph H 52%29.97 inHg

10:00 PM

Clear night

67° 💧 None 💨 6 mph H 55%29.97 inHg

11:00 PM

Clear night

65° 💧 None 💨 5 mph H 59%30.00 inHg

Tomorrow

12:00 AM

Clear night

64° 💧 None 💨 4 mph H 65%30.00 inHg

1:00 AM

Clear night

63° 💧 None 💨 5 mph H 66%30.00 inHg

2:00 AM

Clear night

62° 💧 None 💨 4 mph H 69%30.00 inHg

3:00 AM

Clear night

62° 💧 None 💨 3 mph H 71%30.00 inHg

4:00 AM

Clear night

61° 💧 None 💨 5 mph H 71%30.00 inHg

5:00 AM

Clear night

61° 💧 None 💨 6 mph H 70%30.03 inHg

6:00 AM

Clear night

61° 💧 None 💨 6 mph H 72%30.06 inHg

7:00 AM

Mostly clear night

62° 💧 None 💨 7 mph H 70%30.06 inHg

8:00 AM

Partly cloudy

63° 💧 0.000 in 💨 7 mph H 70%30.09 inHg

9:00 AM

Sunny

66° 💧 None 💨 10 mph H 65%30.09 inHg

10:00 AM

Mostly sunny

68° 💧 None 💨 14 mph H 55%30.09 inHg

11:00 AM

Sunny

69° 💧 None 💨 14 mph H 52%30.09 inHg

12:00 PM

Sunny

71° 💧 None 💨 14 mph H 50%30.12 inHg

1:00 PM

Sunny

73° 💧 None 💨 13 mph H 47%30.09 inHg

2:00 PM

Sunny

74° 💧 None 💨 12 mph H 44%30.06 inHg

3:00 PM

Sunny

75° 💧 None 💨 11 mph H 42%30.06 inHg

4:00 PM

Sunny

75° 💧 None 💨 11 mph H 40%30.06 inHg

5:00 PM

Sunny

75° 💧 None 💨 11 mph H 40%30.03 inHg

6:00 PM

Sunny

75° 💧 None 💨 9 mph H 40%30.03 inHg

7:00 PM

Sunny

72° 💧 None 💨 5 mph H 47%30.03 inHg

8:00 PM

Mostly clear night

67° 💧 None 💨 3 mph H 59%30.03 inHg

9:00 PM

Mostly clear night

65° 💧 None 💨 3 mph H 64%30.03 inHg

10:00 PM

Partly cloudy night

64° 💧 None 💨 3 mph H 70%30.06 inHg

11:00 PM

Clear night

63° 💧 None 💨 2 mph H 72%30.06 inHg

Thursday

12:00 AM

Clear night

62° 💧 None 💨 1 mph H 73%30.06 inHg

1:00 AM

Clear night

60° 💧 None 💨 3 mph H 75%30.06 inHg

2:00 AM

Mostly cloudy night

60° 💧 None 💨 4 mph H 74%30.06 inHg

3:00 AM

Clear night

60° 💧 0.000 in 💨 5 mph H 72%30.03 inHg

4:00 AM

Clear night

60° 💧 None 💨 6 mph H 70%30.03 inHg

5:00 AM

Clear night

60° 💧 None 💨 6 mph H 68%30.03 inHg

6:00 AM

Clear night

60° 💧 None 💨 7 mph H 67%30.03 inHg

7:00 AM

Clear night

59° 💧 None 💨 7 mph H 69%30.00 inHg

8:00 AM

Sunny

61° 💧 None 💨 7 mph H 69%30.00 inHg

9:00 AM

Sunny

65° 💧 None 💨 7 mph H 65%30.00 inHg

10:00 AM

Sunny

70° 💧 None 💨 7 mph H 55%30.00 inHg

11:00 AM

Sunny

75° 💧 None 💨 11 mph H 46%30.00 inHg

12:00 PM

Sunny

77° 💧 None 💨 15 mph H 40%30.00 inHg

1:00 PM

Sunny

79° 💧 None 💨 16 mph H 38%29.97 inHg

2:00 PM

Sunny

80° 💧 None 💨 16 mph H 37%29.91 inHg

3:00 PM

Mostly sunny

81° 💧 None 💨 16 mph H 36%29.88 inHg

4:00 PM

Sunny

81° 💧 None 💨 17 mph H 36%29.85 inHg

5:00 PM

Sunny

81° 💧 None 💨 17 mph H 38%29.83 inHg

6:00 PM

Sunny

79° 💧 None 💨 16 mph H 43%29.83 inHg

7:00 PM

Sunny

76° 💧 None 💨 14 mph H 51%29.83 inHg

8:00 PM

Clear night

73° 💧 None 💨 13 mph H 58%29.80 inHg

9:00 PM

Clear night

72° 💧 None 💨 14 mph H 62%29.80 inHg

10:00 PM

Clear night

71° 💧 None 💨 15 mph H 61%29.80 inHg

11:00 PM

Clear night

71° 💧 None 💨 16 mph H 60%29.80 inHg

Friday

12:00 AM

Clear night

70° 💧 None 💨 16 mph H 59%29.80 inHg

1:00 AM

Clear night

69° 💧 None 💨 15 mph H 59%29.77 inHg

2:00 AM

Clear night

69° 💧 None 💨 15 mph H 60%29.77 inHg

3:00 AM

Clear night

68° 💧 None 💨 15 mph H 61%29.77 inHg

4:00 AM

Clear night

67° 💧 None 💨 14 mph H 63%29.74 inHg

5:00 AM

Clear night

67° 💧 None 💨 14 mph H 66%29.74 inHg

6:00 AM

Partly cloudy night

66° 💧 None 💨 14 mph H 69%29.71 inHg

7:00 AM

Partly cloudy night

66° 💧 None 💨 14 mph H 72%29.71 inHg

10:00 AM

Mostly cloudy

72° 💧 None 💨 16 mph H 70%29.65 inHg

1:00 PM

Mostly cloudy

81° 💧 None 💨 20 mph H 62%29.56 inHg

4:00 PM

Overcast

87° 💧 None 💨 21 mph H 47%29.50 inHg

7:00 PM

Sunny

85° 💧 None 💨 15 mph H 26%29.47 inHg

10:00 PM

Mostly clear night

74° 💧 None 💨 16 mph H 64%29.65 inHg

Saturday

1:00 AM

Clear night

66° 💧 None 💨 10 mph H 65%29.77 inHg

4:00 AM

Clear night

61° 💧 None 💨 11 mph H 60%29.88 inHg

7:00 AM

Clear night

57° 💧 None 💨 7 mph H 70%29.94 inHg

10:00 AM

Sunny

64° 💧 None 💨 7 mph H 55%30.00 inHg

1:00 PM

Overcast

69° 💧 None 💨 9 mph H 40%30.00 inHg

4:00 PM

Mostly sunny

72° 💧 None 💨 6 mph H 35%29.97 inHg

7:00 PM

Mostly sunny

69° 💧 None 💨 3 mph H 46%29.97 inHg

10:00 PM

Partly cloudy night

62° 💧 None 💨 5 mph H 63%30.00 inHg

Sunday

1:00 AM

Mostly clear night

60° 💧 None 💨 6 mph H 66%30.00 inHg

4:00 AM

Partly cloudy night

60° 💧 None 💨 9 mph H 66%30.00 inHg

7:00 AM

Overcast night

59° 💧 None 💨 11 mph H 70%29.94 inHg

10:00 AM

Moderate rain

61° 💧 None 💨 13 mph H 76%29.91 inHg

1:00 PM

Moderate rain

60° 💧 None 💨 13 mph H 92%29.83 inHg

4:00 PM

Light thunderstorms

65° 💧 None 💨 13 mph H 92%29.74 inHg

7:00 PM

Overcast

65° 💧 None 💨 12 mph H 95%29.71 inHg

10:00 PM

Light rain

62° 💧 None 💨 12 mph H 97%29.74 inHg

Monday

1:00 AM

Overcast night

60° 💧 None 💨 8 mph H 98%29.71 inHg

4:00 AM

Light rain

59° 💧 None 💨 6 mph H 99%29.74 inHg

7:00 AM

Overcast night

59° 💧 None 💨 5 mph H 98%29.77 inHg

1:00 PM

Partly cloudy

62° 💧 None 💨 15 mph H 75%29.88 inHg

7:00 PM

Sunny

63° 💧 None 💨 13 mph H 60%29.88 inHg

Tuesday

1:00 AM

Clear night

53° 💧 None 💨 9 mph H 81%30.03 inHg

7:00 AM

Clear night

49° 💧 None 💨 6 mph H 98%30.12 inHg

1:00 PM

Mostly sunny

61° 💧 None 💨 5 mph H 62%30.18 inHg

7:00 PM

Partly cloudy

62° 💧 None 💨 4 mph H 71%30.12 inHg

Wednesday

1:00 AM

Overcast night

59° 💧 None 💨 7 mph H 82%30.18 inHg

7:00 AM

Partly cloudy night

57° 💧 None 💨 11 mph H 85%30.12 inHg

1:00 PM

Light rain

67° 💧 None 💨 18 mph H 71%30.00 inHg

7:00 PM

Mostly sunny

69° 💧 None 💨 6 mph H 89%29.91 inHg

Thursday

1:00 AM

Partly cloudy night

66° 💧 None 💨 6 mph H 97%29.91 inHg

7:00 AM

Moderate rain

66° 💧 None 💨 8 mph H 99%29.94 inHg

1:00 PM

Overcast

69° 💧 None 💨 15 mph H 83%30.00 inHg

7:00 PM

Overcast

64° 💧 None 💨 16 mph H 88%30.03 inHg

Friday

1:00 AM

Overcast night

62° 💧 None 💨 14 mph H 89%30.09 inHg

7:00 AM

Overcast night

58° 💧 None 💨 14 mph H 92%30.09 inHg

1:00 PM

Light rain

62° 💧 None 💨 15 mph H 87%30.03 inHg

7:00 PM

Light rain

63° 💧 None 💨 13 mph H 94%29.91 inHg

Saturday

1:00 AM

Light thunderstorms

64° 💧 None 💨 13 mph H 97%29.71 inHg

7:00 AM

Light rain

69° 💧 None 💨 13 mph H 96%29.50 inHg

1:00 PM

Sunny

69° 💧 None 💨 21 mph H 58%29.65 inHg

7:00 PM

Sunny

66° 💧 None 💨 16 mph H 57%29.74 inHg

Sunday

1:00 AM

Clear night

58° 💧 None 💨 15 mph H 59%29.94 inHg

7:00 AM

Clear night

52° 💧 None 💨 13 mph H 75%30.12 inHg

1:00 PM

Overcast

57° 💧 None 💨 16 mph H 58%30.24 inHg

7:00 PM

Sunny

55° 💧 None 💨 8 mph H 57%30.27 inHg

Monday

1:00 AM

Clear night

47° 💧 None 💨 2 mph H 75%30.39 inHg

7:00 AM

Overcast night

42° 💧 None 💨 5 mph H 100%30.39 inHg

1:00 PM

Sunny

60° 💧 None 💨 14 mph H 54%30.33 inHg

7:00 PM

Overcast

60° 💧 None 💨 16 mph H 68%30.12 inHg

Tuesday

1:00 AM

Overcast night

56° 💧 None 💨 17 mph H 73%30.06 inHg

7:00 AM

Overcast night

55° 💧 None 💨 16 mph H 70%29.94 inHg

1:00 PM

Overcast

65° 💧 None 💨 16 mph H 67%29.88 inHg

7:00 PM

Sunny

66° 💧 None 💨 10 mph H 78%29.80 inHg

Wednesday

1:00 AM

Clear night

61° 💧 None 💨 11 mph H 83%29.77 inHg

7:00 AM

Partly cloudy night

58° 💧 None 💨 11 mph H 70%29.94 inHg

In Erwin and, more broadly, across the state of South Dakota: This evening will feature a mix of sun and clouds with mild to warm temperatures ranging from 74 to 77 degrees Fahrenheit. Winds will be light, coming from the northwest at around 7 mph, with gusts up to 13 mph. No precipitation is expected during the next few hours, so conditions will remain dry. Overall, it should be a pleasant evening with comfortable temperatures and gentle breezes.

15-Day Weather Outlook for Erwin

TomorrowTomorrow

Mostly sunny 77°/61° 💧 None 💨 14 mph

Thursday, Sep 10Thu Sep 10

Mostly sunny 81°/59° 💧 None 💨 17 mph

Friday, Sep 11Fri Sep 11

Partly cloudy 87°/66° 💧 0.004 in 💨 21 mph

Saturday, Sep 12Sat Sep 12

Mostly sunny 85°/57° 💧 None 💨 16 mph

Sunday, Sep 13Sun Sep 13

Light thunderstorms 69°/59° 💧 1.706 in 💨 13 mph

Monday, Sep 14Mon Sep 14

Light rain 65°/59° 💧 0.314 in 💨 15 mph

Tuesday, Sep 15Tue Sep 15

Mostly sunny 63°/49° 💧 None 💨 13 mph

Wednesday, Sep 16Wed Sep 16

Partly cloudy 67°/57° 💧 0.004 in 💨 18 mph

Thursday, Sep 17Thu Sep 17

Moderate rain 69°/66° 💧 0.505 in 💨 15 mph

Friday, Sep 18Fri Sep 18

Light rain 64°/58° 💧 0.156 in 💨 16 mph

Saturday, Sep 19Sat Sep 19

Light thunderstorms 69°/63° 💧 1.721 in 💨 21 mph

Sunday, Sep 20Sun Sep 20

Overcast 66°/52° 💧 0.001 in 💨 16 mph

Monday, Sep 21Mon Sep 21

Overcast 60°/42° 💧 0.001 in 💨 14 mph

Tuesday, Sep 22Tue Sep 22

Overcast 65°/55° 💧 None 💨 17 mph

Wednesday, Sep 23Wed Sep 23

Partly cloudy 66°/58° 💧 0.003 in 💨 11 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Erwin

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Erwin

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 7:00 PM

PM2.5 Fine particles Good 1,4µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 1,8µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Fair 69,7µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 2,5µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is acceptable for most people.

UV & HEALTH

UV, Sun & Health Outlook in Erwin

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 6,6High 🙂Fair

Tomorrow UV 6,1High 🙂Fair

Thursday UV 6,1High 🙂Fair

Friday UV 5,9Moderate 🙂Fair

Saturday UV 4,4Moderate 🙂Fair

Sunday UV 6,0High —Unavailable

Monday UV 5,0Moderate —Unavailable

Hourly UV index today

7:00 PMUV 0,2

Today's weather health advice Open today's recommendations.

Strong UV exposure

Protect exposed skin with SPF 30+ sunscreen, wear sunglasses, and try to limit direct midday sun.

Acceptable air quality

Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged exertion.

Stay hydrated

Drink water regularly, especially during physical activity or prolonged sun exposure.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Erwin

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · ERWIN, SOUTH DAKOTA

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 3:00 AM–4:00 AM.

100/100Best-hour score

BEST TIME TONIGHT 3:00 AM–4:00 AM Astronomical darkness: 9:35 PM–5:21 AM

☁ Cloud cover 0% Real hourly forecast for the best viewing hour.

☾ Moonlight 7% Waning Crescent · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 62° high at the best hour.

✦ Estimated visible meteors 2–4/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min77%

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

SEP 5–SEP 21

September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak

ACTIVE NOW

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

UPCOMING

OCT 2–NOV 7

OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak

UPCOMING

OCT 20–DEC 10

Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak

UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

DISCOVER WEATHER NEARBY Weather in other cities

Explore current conditions and forecasts for other locations.

Hawthorne US · New York · 4,878 residents Barkisland GB · England · 990 residents Elberta US · Michigan · 174 residents Milford US · Iowa · 3,311 residents Hollins US · Virginia · 17,097 residents North Aurora US · Illinois · 18,696 residents Waverly US · Ohio · 4,127 residents South Barrington US · Illinois · 5,021 residents Attwood AU · Victoria · 3,309 residents Spring Creek US · Nevada · 14,739 residents Irthlingborough GB · England · 9,310 residents Mitcham (Vic.) AU · Victoria · 16,795 residents Levan US · Utah · 853 residents Coon Rapids US · Minnesota · 63,468 residents Federal Way US · Washington · 99,493 residents Oxford GB · England · 172,436 residents

Forecast data for Erwin were last refreshed today at 6:27 PM. The current forecast period extends through 10/09/2026 at 4:00 PM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.