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Current weather in Willow Lake is clear sky.

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

Is the weather forecast for Willow Lake updated regularly?

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

Now · 9:05 AM

Willow Lake Weather & Hourly Forecast

United States · South Dakota · 57278

70°F

Sunny

Feels like: 71°F

💧 Humidity 82% 🌡 Pressure 29.85 inHg 💨 Wind 13 mph 👁 Visibility 6.2 mi ☁ Clouds 0% ☀️ UV index 1.0 · Low 🌅 Sunrise 6:56 AM 🌇 Sunset 8:02 PM

Hourly Forecast for Willow Lake

Today

10:00 AM

Sunny

70° 💧 None 💨 13 mph H 82%29.85 inHg

1:00 PM

Sunny

83° 💧 None 💨 12 mph H 36%29.83 inHg

4:00 PM

Sunny

94° 💧 None 💨 11 mph H 22%29.80 inHg

7:00 PM

Partly cloudy

88° 💧 None 💨 11 mph H 26%29.77 inHg

10:00 PM

Mostly cloudy night

75° 💧 None 💨 10 mph H 34%29.83 inHg

Tomorrow

1:00 AM

Mostly cloudy night

72° 💧 0.08 in 💨 11 mph H 52%29.85 inHg

4:00 AM

Moderate rain

69° 💧 0.09 in 💨 8 mph H 86%29.91 inHg

7:00 AM

Mostly cloudy

68° 💧 None 💨 13 mph H 89%29.91 inHg

10:00 AM

Sunny

74° 💧 None 💨 16 mph H 65%29.91 inHg

1:00 PM

Sunny

85° 💧 None 💨 13 mph H 35%29.85 inHg

4:00 PM

Sunny

94° 💧 None 💨 11 mph H 25%29.80 inHg

7:00 PM

Sunny

90° 💧 None 💨 7 mph H 31%29.77 inHg

10:00 PM

Clear night

76° 💧 None 💨 10 mph H 51%29.85 inHg

Sunday

1:00 AM

Light rain

73° 💧 0.01 in 💨 7 mph H 74%29.88 inHg

4:00 AM

Mostly cloudy night

73° 💧 None 💨 10 mph H 79%29.88 inHg

7:00 AM

Mostly cloudy

73° 💧 None 💨 10 mph H 88%29.91 inHg

Today

10:00 AM

Sunny

70° 💧 None 💨 13 mph H 82%29.85 inHg

11:00 AM

Sunny

73° 💧 None 💨 14 mph H 68%29.85 inHg

12:00 PM

Sunny

78° 💧 None 💨 13 mph H 51%29.83 inHg

1:00 PM

Sunny

83° 💧 None 💨 12 mph H 36%29.83 inHg

2:00 PM

Sunny

89° 💧 None 💨 11 mph H 24%29.83 inHg

3:00 PM

Sunny

92° 💧 None 💨 11 mph H 23%29.80 inHg

4:00 PM

Sunny

94° 💧 None 💨 11 mph H 22%29.80 inHg

5:00 PM

Sunny

94° 💧 None 💨 11 mph H 21%29.77 inHg

6:00 PM

Sunny

93° 💧 None 💨 13 mph H 21%29.77 inHg

7:00 PM

Partly cloudy

88° 💧 None 💨 11 mph H 26%29.77 inHg

8:00 PM

Overcast

82° 💧 None 💨 10 mph H 32%29.80 inHg

9:00 PM

Mostly cloudy night

78° 💧 None 💨 10 mph H 32%29.80 inHg

10:00 PM

Mostly cloudy night

75° 💧 None 💨 10 mph H 34%29.83 inHg

11:00 PM

Mostly cloudy night

72° 💧 None 💨 12 mph H 42%29.85 inHg

Tomorrow

12:00 AM

Mostly cloudy night

71° 💧 None 💨 12 mph H 47%29.85 inHg

1:00 AM

Mostly cloudy night

72° 💧 None 💨 11 mph H 52%29.85 inHg

2:00 AM

Overcast night

72° 💧 None 💨 10 mph H 60%29.88 inHg

3:00 AM

Moderate rain

69° 💧 0.08 in 💨 1 mph H 82%29.91 inHg

4:00 AM

Moderate rain

69° 💧 0.06 in 💨 8 mph H 86%29.91 inHg

5:00 AM

Light rain

68° 💧 0.01 in 💨 8 mph H 85%29.91 inHg

6:00 AM

Light rain

67° 💧 0.02 in 💨 11 mph H 89%29.91 inHg

7:00 AM

Mostly cloudy

68° 💧 None 💨 13 mph H 89%29.91 inHg

8:00 AM

Sunny

68° 💧 None 💨 15 mph H 82%29.91 inHg

9:00 AM

Sunny

69° 💧 None 💨 15 mph H 76%29.91 inHg

10:00 AM

Sunny

74° 💧 None 💨 16 mph H 65%29.91 inHg

11:00 AM

Sunny

78° 💧 None 💨 15 mph H 51%29.88 inHg

12:00 PM

Sunny

82° 💧 None 💨 15 mph H 41%29.88 inHg

1:00 PM

Sunny

85° 💧 None 💨 13 mph H 35%29.85 inHg

2:00 PM

Sunny

89° 💧 None 💨 12 mph H 30%29.83 inHg

3:00 PM

Sunny

91° 💧 None 💨 11 mph H 27%29.83 inHg

4:00 PM

Sunny

94° 💧 None 💨 11 mph H 25%29.80 inHg

5:00 PM

Sunny

95° 💧 None 💨 10 mph H 25%29.80 inHg

6:00 PM

Sunny

95° 💧 None 💨 10 mph H 25%29.77 inHg

7:00 PM

Sunny

90° 💧 None 💨 7 mph H 31%29.77 inHg

8:00 PM

Sunny

83° 💧 None 💨 8 mph H 40%29.80 inHg

9:00 PM

Clear night

79° 💧 None 💨 8 mph H 47%29.83 inHg

10:00 PM

Clear night

76° 💧 None 💨 10 mph H 51%29.85 inHg

11:00 PM

Clear night

74° 💧 None 💨 12 mph H 58%29.85 inHg

Sunday

12:00 AM

Mostly clear night

73° 💧 None 💨 13 mph H 62%29.88 inHg

1:00 AM

Light rain

73° 💧 0.01 in 💨 7 mph H 74%29.88 inHg

2:00 AM

Overcast night

74° 💧 None 💨 9 mph H 74%29.88 inHg

3:00 AM

Overcast night

73° 💧 None 💨 11 mph H 74%29.88 inHg

4:00 AM

Mostly cloudy night

73° 💧 None 💨 10 mph H 79%29.88 inHg

5:00 AM

Mostly cloudy night

73° 💧 None 💨 9 mph H 83%29.88 inHg

6:00 AM

Mostly cloudy night

73° 💧 None 💨 12 mph H 87%29.91 inHg

7:00 AM

Mostly cloudy

73° 💧 None 💨 10 mph H 88%29.91 inHg

8:00 AM

Overcast

73° 💧 None 💨 8 mph H 87%29.91 inHg

9:00 AM

Mostly cloudy

78° 💧 None 💨 11 mph H 73%29.88 inHg

10:00 AM

Overcast

82° 💧 None 💨 11 mph H 62%29.88 inHg

11:00 AM

Overcast

86° 💧 None 💨 13 mph H 51%29.88 inHg

12:00 PM

Overcast

89° 💧 None 💨 11 mph H 44%29.88 inHg

1:00 PM

Overcast

92° 💧 None 💨 12 mph H 37%29.85 inHg

2:00 PM

Overcast

94° 💧 None 💨 16 mph H 33%29.83 inHg

3:00 PM

Mostly cloudy

92° 💧 None 💨 18 mph H 37%29.83 inHg

4:00 PM

Mostly cloudy

95° 💧 None 💨 18 mph H 32%29.80 inHg

5:00 PM

Mostly cloudy

93° 💧 None 💨 20 mph H 37%29.80 inHg

6:00 PM

Mostly cloudy

91° 💧 None 💨 15 mph H 38%29.80 inHg

7:00 PM

Mostly cloudy

91° 💧 None 💨 13 mph H 39%29.77 inHg

8:00 PM

Light rain

76° 💧 0.02 in 💨 21 mph H 80%29.83 inHg

9:00 PM

Light rain

72° 💧 0.03 in 💨 17 mph H 88%29.85 inHg

10:00 PM

Mostly cloudy night

71° 💧 None 💨 14 mph H 83%29.85 inHg

11:00 PM

Partly cloudy night

70° 💧 None 💨 12 mph H 81%29.85 inHg

Monday

12:00 AM

Partly cloudy night

70° 💧 None 💨 16 mph H 85%29.85 inHg

1:00 AM

Partly cloudy night

70° 💧 None 💨 17 mph H 86%29.85 inHg

2:00 AM

Overcast night

70° 💧 None 💨 15 mph H 87%29.85 inHg

3:00 AM

Light rain

69° 💧 0.01 in 💨 15 mph H 91%29.85 inHg

4:00 AM

Light rain

68° 💧 0.01 in 💨 14 mph H 93%29.85 inHg

5:00 AM

Light rain

68° 💧 0.01 in 💨 15 mph H 93%29.85 inHg

6:00 AM

Overcast night

68° 💧 None 💨 15 mph H 90%29.85 inHg

7:00 AM

Overcast night

68° 💧 None 💨 13 mph H 92%29.83 inHg

8:00 AM

Overcast

69° 💧 None 💨 15 mph H 90%29.83 inHg

9:00 AM

Overcast

72° 💧 None 💨 18 mph H 82%29.83 inHg

10:00 AM

Overcast

75° 💧 None 💨 20 mph H 73%29.80 inHg

11:00 AM

Overcast

79° 💧 None 💨 22 mph H 62%29.77 inHg

12:00 PM

Overcast

84° 💧 None 💨 22 mph H 52%29.77 inHg

1:00 PM

Overcast

87° 💧 None 💨 21 mph H 46%29.74 inHg

2:00 PM

Overcast

91° 💧 None 💨 21 mph H 39%29.71 inHg

3:00 PM

Overcast

94° 💧 None 💨 22 mph H 34%29.68 inHg

4:00 PM

Overcast

96° 💧 None 💨 23 mph H 31%29.65 inHg

5:00 PM

Overcast

99° 💧 None 💨 21 mph H 27%29.62 inHg

6:00 PM

Overcast

98° 💧 None 💨 17 mph H 26%29.59 inHg

7:00 PM

Overcast

93° 💧 None 💨 15 mph H 31%29.62 inHg

8:00 PM

Overcast night

87° 💧 None 💨 11 mph H 40%29.62 inHg

9:00 PM

Light rain

78° 💧 0.01 in 💨 9 mph H 61%29.68 inHg

10:00 PM

Light rain

75° 💧 0.03 in 💨 11 mph H 74%29.74 inHg

11:00 PM

Overcast night

74° 💧 None 💨 13 mph H 79%29.74 inHg

Tuesday

12:00 AM

Overcast night

74° 💧 None 💨 10 mph H 74%29.74 inHg

1:00 AM

Light rain

74° 💧 0.00 in 💨 12 mph H 74%29.74 inHg

2:00 AM

Light rain

74° 💧 0.01 in 💨 20 mph H 73%29.71 inHg

3:00 AM

Overcast night

74° 💧 None 💨 18 mph H 75%29.71 inHg

4:00 AM

Light rain

76° 💧 0.00 in 💨 21 mph H 69%29.71 inHg

5:00 AM

Light rain

74° 💧 0.00 in 💨 17 mph H 75%29.65 inHg

6:00 AM

Overcast night

73° 💧 None 💨 13 mph H 78%29.68 inHg

7:00 AM

Overcast night

71° 💧 None 💨 9 mph H 82%29.71 inHg

8:00 AM

Sunny

71° 💧 None 💨 9 mph H 85%29.74 inHg

9:00 AM

Mostly sunny

75° 💧 None 💨 13 mph H 72%29.71 inHg

In Willow Lake and, more broadly, across the state of South Dakota: This morning, the sky will be mostly sunny with a few clouds, and temperatures will start off warm, around 64 degrees. As the day progresses, expect the heat to build, with highs reaching up to 97 degrees. Winds will be from the southeast at a moderate pace, peaking at around 14 mph, with gusts up to 33 mph. No significant rainfall is expected throughout the day, so conditions will remain dry. The hot temperatures combined with the breezy southeast wind may make outdoor activities uncomfortable, especially during the peak afternoon hours. It’s advisable to stay hydrated and take precautions against the sun’s intensity.

15-Day Weather Outlook for Willow Lake

TomorrowTomorrow

Sunny 96°/71° 💧 None 💨 17 mph

Sunday, Sep 6Sun Sep 6

Light rain 95°/68° 💧 0.06 in 💨 21 mph

Monday, Sep 7Mon Sep 7

Moderate rain 94°/69° 💧 0.13 in 💨 21 mph

Tuesday, Sep 8Tue Sep 8

Moderate rain 89°/69° 💧 0.22 in 💨 21 mph

Wednesday, Sep 9Wed Sep 9

Mostly sunny 86°/61° 💧 None 💨 16 mph

Thursday, Sep 10Thu Sep 10

Partly cloudy 81°/52° 💧 None 💨 18 mph

Friday, Sep 11Fri Sep 11

Light rain 88°/61° 💧 0.06 in 💨 14 mph

Saturday, Sep 12Sat Sep 12

Mostly sunny 94°/63° 💧 None 💨 22 mph

Sunday, Sep 13Sun Sep 13

Light rain 105°/72° 💧 0.01 in 💨 22 mph

Monday, Sep 14Mon Sep 14

Light rain 74°/56° 💧 0.27 in 💨 20 mph

Tuesday, Sep 15Tue Sep 15

Light rain 71°/56° 💧 0.17 in 💨 14 mph

Wednesday, Sep 16Wed Sep 16

Light rain 68°/62° 💧 0.19 in 💨 14 mph

Thursday, Sep 17Thu Sep 17

Light rain 77°/64° 💧 0.01 in 💨 10 mph

Friday, Sep 18Fri Sep 18

Moderate rain 75°/63° 💧 0.52 in 💨 23 mph

Saturday, Sep 19Sat Sep 19

Light rain 88°/63° 💧 0.01 in 💨 14 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Willow Lake

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Willow Lake

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 10:00 AM

PM2.5 Fine particles Good 4,0µg/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 4,8µg/m³

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

O₃ Ozone Good 24,4µg/m³

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

NO₂ Nitrogen dioxide Good 3,0µg/m³

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

Air quality is favorable for outdoor activities.

UV & HEALTH

UV, Sun & Health Outlook in Willow Lake

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 6,8High 😊Good

Tomorrow UV 7,0High 🙂Fair

Sunday UV 7,0High 🙂Fair

Monday UV 8,0Very high 🙂Fair

Tuesday UV 7,0High 🙂Fair

Wednesday UV 8,0Very high —Unavailable

Thursday UV 6,0High —Unavailable

Hourly UV index today

10:00 AMUV 2,3 11:00 AMUV 4,0 12:00 PMUV 5,7 1:00 PMUV 6,8 2:00 PMUV 6,8 3:00 PMUV 5,8 4:00 PMUV 4,2 5:00 PMUV 2,4 6:00 PMUV 1,0 7:00 PMUV 0,3

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.

Good air quality

Air quality is good and outdoor activities can be enjoyed normally.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

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 Willow Lake

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

Internal PR simulation: 3.39 Population: 433

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Forecast data for Willow Lake were last refreshed today at 9:05 AM. The current forecast period extends through 06/09/2026 at 7:00 AM. 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.