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Current weather in Frederick is overcast clouds.

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

Now · 2:03 PM

Frederick Weather & Hourly Forecast

United States · South Dakota · 57441

65°F

Overcast

Feels like: 60°F

💧 Humidity 69% 🌡 Pressure 30.15 inHg 💨 Wind 11 mph 👁 Visibility 29.3 mi ☁ Clouds 100% ☀️ UV index 2.7 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Frederick

Today

3:00 PM

Overcast

65° 💧 None 💨 11 mph H 64%30.15 inHg

6:00 PM

Overcast

64° 💧 0.000 in 💨 9 mph H 64%30.12 inHg

9:00 PM

Overcast night

60° 💧 0.001 in 💨 7 mph H 75%30.18 inHg

Tomorrow

12:00 AM

Light rain

57° 💧 0.059 in 💨 6 mph H 81%30.21 inHg

3:00 AM

Light rain

55° 💧 0.031 in 💨 5 mph H 91%30.24 inHg

6:00 AM

Overcast night

54° 💧 0.000 in 💨 7 mph H 92%30.24 inHg

9:00 AM

Overcast

53° 💧 0.000 in 💨 7 mph H 89%30.27 inHg

12:00 PM

Mostly cloudy

57° 💧 0.001 in 💨 7 mph H 76%30.27 inHg

3:00 PM

Mostly cloudy

63° 💧 0.001 in 💨 6 mph H 63%30.24 inHg

6:00 PM

Mostly sunny

63° 💧 None 💨 7 mph H 59%30.21 inHg

9:00 PM

Clear night

56° 💧 None 💨 7 mph H 77%30.24 inHg

Tuesday

12:00 AM

Clear night

50° 💧 None 💨 6 mph H 91%30.30 inHg

3:00 AM

Clear night

46° 💧 None 💨 3 mph H 94%30.30 inHg

6:00 AM

Clear night

45° 💧 None 💨 3 mph H 96%30.30 inHg

9:00 AM

Overcast

51° 💧 None 💨 3 mph H 87%30.30 inHg

12:00 PM

Overcast

57° 💧 0.001 in 💨 9 mph H 78%30.30 inHg

Today

3:00 PM

Overcast

65° 💧 None 💨 11 mph H 64%30.15 inHg

4:00 PM

Overcast

65° 💧 None 💨 11 mph H 62%30.12 inHg

5:00 PM

Overcast

65° 💧 None 💨 11 mph H 60%30.15 inHg

6:00 PM

Overcast

64° 💧 None 💨 9 mph H 64%30.12 inHg

7:00 PM

Overcast

63° 💧 None 💨 8 mph H 67%30.15 inHg

8:00 PM

Overcast night

61° 💧 0.000 in 💨 8 mph H 72%30.15 inHg

9:00 PM

Overcast night

60° 💧 0.001 in 💨 7 mph H 75%30.18 inHg

10:00 PM

Overcast night

59° 💧 None 💨 7 mph H 74%30.18 inHg

11:00 PM

Overcast night

58° 💧 0.000 in 💨 6 mph H 75%30.18 inHg

Tomorrow

12:00 AM

Light rain

57° 💧 0.013 in 💨 6 mph H 81%30.21 inHg

1:00 AM

Light rain

56° 💧 0.023 in 💨 6 mph H 87%30.21 inHg

2:00 AM

Light rain

56° 💧 0.023 in 💨 5 mph H 90%30.21 inHg

3:00 AM

Light rain

55° 💧 0.018 in 💨 5 mph H 91%30.24 inHg

4:00 AM

Light rain

55° 💧 0.011 in 💨 6 mph H 91%30.24 inHg

5:00 AM

Overcast night

54° 💧 0.002 in 💨 7 mph H 92%30.24 inHg

6:00 AM

Overcast night

54° 💧 0.000 in 💨 7 mph H 92%30.24 inHg

7:00 AM

Overcast night

53° 💧 None 💨 7 mph H 92%30.24 inHg

8:00 AM

Overcast

53° 💧 None 💨 8 mph H 92%30.27 inHg

9:00 AM

Overcast

53° 💧 0.000 in 💨 7 mph H 89%30.27 inHg

10:00 AM

Overcast

54° 💧 None 💨 7 mph H 85%30.27 inHg

11:00 AM

Overcast

56° 💧 None 💨 8 mph H 79%30.27 inHg

12:00 PM

Mostly cloudy

57° 💧 None 💨 7 mph H 76%30.27 inHg

1:00 PM

Partly cloudy

61° 💧 None 💨 6 mph H 69%30.27 inHg

2:00 PM

Overcast

63° 💧 0.001 in 💨 7 mph H 64%30.24 inHg

3:00 PM

Mostly cloudy

63° 💧 0.001 in 💨 6 mph H 63%30.24 inHg

4:00 PM

Mostly cloudy

64° 💧 None 💨 6 mph H 59%30.21 inHg

5:00 PM

Mostly cloudy

64° 💧 0.000 in 💨 6 mph H 58%30.21 inHg

6:00 PM

Mostly sunny

63° 💧 None 💨 7 mph H 59%30.21 inHg

7:00 PM

Mostly sunny

60° 💧 None 💨 5 mph H 67%30.21 inHg

8:00 PM

Mostly clear night

57° 💧 None 💨 6 mph H 73%30.21 inHg

9:00 PM

Clear night

56° 💧 None 💨 7 mph H 77%30.24 inHg

10:00 PM

Clear night

54° 💧 None 💨 7 mph H 84%30.27 inHg

11:00 PM

Clear night

52° 💧 None 💨 6 mph H 89%30.30 inHg

Tuesday

12:00 AM

Clear night

50° 💧 None 💨 6 mph H 91%30.30 inHg

1:00 AM

Clear night

49° 💧 None 💨 5 mph H 91%30.30 inHg

2:00 AM

Clear night

48° 💧 None 💨 4 mph H 93%30.30 inHg

3:00 AM

Clear night

46° 💧 None 💨 3 mph H 94%30.30 inHg

4:00 AM

Clear night

46° 💧 None 💨 3 mph H 95%30.30 inHg

5:00 AM

Clear night

45° 💧 None 💨 3 mph H 95%30.30 inHg

6:00 AM

Clear night

45° 💧 None 💨 3 mph H 96%30.30 inHg

7:00 AM

Mostly clear night

45° 💧 None 💨 3 mph H 96%30.30 inHg

8:00 AM

Mostly cloudy

48° 💧 None 💨 3 mph H 93%30.30 inHg

9:00 AM

Overcast

51° 💧 None 💨 3 mph H 87%30.30 inHg

10:00 AM

Overcast

54° 💧 None 💨 5 mph H 83%30.33 inHg

11:00 AM

Overcast

56° 💧 None 💨 6 mph H 80%30.33 inHg

12:00 PM

Overcast

57° 💧 0.000 in 💨 9 mph H 78%30.30 inHg

1:00 PM

Overcast

58° 💧 0.001 in 💨 10 mph H 77%30.30 inHg

2:00 PM

Overcast

58° 💧 0.000 in 💨 8 mph H 76%30.27 inHg

3:00 PM

Overcast

61° 💧 0.001 in 💨 11 mph H 70%30.24 inHg

4:00 PM

Overcast

62° 💧 0.001 in 💨 12 mph H 68%30.24 inHg

5:00 PM

Partly cloudy

63° 💧 0.001 in 💨 12 mph H 64%30.21 inHg

6:00 PM

Overcast

63° 💧 None 💨 10 mph H 63%30.21 inHg

7:00 PM

Overcast

62° 💧 None 💨 8 mph H 66%30.21 inHg

8:00 PM

Overcast night

61° 💧 None 💨 7 mph H 69%30.21 inHg

9:00 PM

Overcast night

60° 💧 None 💨 7 mph H 72%30.21 inHg

10:00 PM

Overcast night

60° 💧 None 💨 8 mph H 74%30.24 inHg

11:00 PM

Overcast night

59° 💧 None 💨 9 mph H 74%30.24 inHg

Wednesday

12:00 AM

Mostly cloudy night

58° 💧 None 💨 11 mph H 72%30.24 inHg

1:00 AM

Overcast night

58° 💧 None 💨 11 mph H 72%30.21 inHg

2:00 AM

Overcast night

58° 💧 None 💨 12 mph H 71%30.21 inHg

3:00 AM

Overcast night

58° 💧 None 💨 12 mph H 70%30.21 inHg

4:00 AM

Overcast night

57° 💧 0.002 in 💨 11 mph H 76%30.21 inHg

5:00 AM

Overcast night

57° 💧 0.002 in 💨 12 mph H 79%30.21 inHg

6:00 AM

Overcast night

57° 💧 None 💨 12 mph H 81%30.21 inHg

7:00 AM

Overcast night

57° 💧 None 💨 13 mph H 82%30.21 inHg

10:00 AM

Overcast

58° 💧 None 💨 12 mph H 83%30.21 inHg

1:00 PM

Light rain

60° 💧 None 💨 13 mph H 81%30.18 inHg

4:00 PM

Light rain

62° 💧 None 💨 15 mph H 77%30.12 inHg

7:00 PM

Light rain

60° 💧 None 💨 14 mph H 90%30.09 inHg

10:00 PM

Overcast night

60° 💧 None 💨 11 mph H 92%30.09 inHg

Thursday

1:00 AM

Overcast night

59° 💧 None 💨 10 mph H 92%30.09 inHg

4:00 AM

Mostly clear night

58° 💧 None 💨 8 mph H 95%30.06 inHg

7:00 AM

Overcast night

58° 💧 None 💨 3 mph H 95%30.09 inHg

10:00 AM

Overcast

61° 💧 None 💨 4 mph H 91%30.12 inHg

1:00 PM

Overcast

66° 💧 None 💨 5 mph H 79%30.12 inHg

4:00 PM

Overcast

68° 💧 None 💨 5 mph H 77%30.12 inHg

7:00 PM

Overcast

66° 💧 None 💨 5 mph H 81%30.12 inHg

10:00 PM

Mostly cloudy night

64° 💧 None 💨 5 mph H 91%30.15 inHg

Friday

1:00 AM

Overcast night

62° 💧 None 💨 4 mph H 96%30.15 inHg

4:00 AM

Overcast night

61° 💧 None 💨 6 mph H 97%30.15 inHg

7:00 AM

Overcast night

60° 💧 None 💨 5 mph H 97%30.12 inHg

10:00 AM

Overcast

63° 💧 None 💨 9 mph H 89%30.12 inHg

1:00 PM

Overcast

67° 💧 None 💨 12 mph H 78%30.09 inHg

4:00 PM

Overcast

68° 💧 None 💨 12 mph H 75%30.03 inHg

7:00 PM

Overcast

65° 💧 None 💨 11 mph H 78%30.00 inHg

10:00 PM

Light rain

61° 💧 None 💨 11 mph H 91%29.97 inHg

Saturday

1:00 AM

Light rain

60° 💧 None 💨 10 mph H 93%29.91 inHg

7:00 AM

Overcast night

63° 💧 None 💨 12 mph H 81%29.97 inHg

1:00 PM

Overcast

62° 💧 None 💨 11 mph H 89%29.91 inHg

7:00 PM

Overcast

69° 💧 None 💨 9 mph H 70%29.94 inHg

Sunday

1:00 AM

Overcast night

68° 💧 None 💨 3 mph H 80%29.94 inHg

7:00 AM

Overcast night

64° 💧 None 💨 3 mph H 92%30.03 inHg

1:00 PM

Overcast

58° 💧 None 💨 7 mph H 69%30.06 inHg

7:00 PM

Overcast

62° 💧 None 💨 10 mph H 67%30.09 inHg

Monday

1:00 AM

Overcast night

64° 💧 None 💨 9 mph H 81%30.00 inHg

7:00 AM

Overcast night

65° 💧 None 💨 10 mph H 82%29.94 inHg

1:00 PM

Overcast

63° 💧 None 💨 14 mph H 86%29.83 inHg

7:00 PM

Overcast

67° 💧 None 💨 20 mph H 77%29.71 inHg

Tuesday

1:00 AM

Very heavy rain

63° 💧 None 💨 8 mph H 90%29.62 inHg

7:00 AM

Overcast night

60° 💧 None 💨 16 mph H 86%29.65 inHg

1:00 PM

Sunny

53° 💧 None 💨 10 mph H 93%29.80 inHg

7:00 PM

Sunny

62° 💧 None 💨 10 mph H 60%29.85 inHg

Wednesday

1:00 AM

Clear night

60° 💧 None 💨 2 mph H 72%29.85 inHg

7:00 AM

Clear night

50° 💧 None 💨 4 mph H 89%29.91 inHg

1:00 PM

Sunny

49° 💧 None 💨 7 mph H 93%29.94 inHg

7:00 PM

Sunny

68° 💧 None 💨 7 mph H 60%29.94 inHg

Thursday

1:00 AM

Clear night

64° 💧 None 💨 5 mph H 71%29.94 inHg

7:00 AM

Clear night

54° 💧 None 💨 5 mph H 88%30.06 inHg

1:00 PM

Sunny

48° 💧 None 💨 3 mph H 95%30.12 inHg

7:00 PM

Mostly sunny

67° 💧 None 💨 8 mph H 59%30.12 inHg

Friday

1:00 AM

Mostly clear night

64° 💧 None 💨 7 mph H 69%30.06 inHg

7:00 AM

Overcast night

65° 💧 None 💨 12 mph H 80%30.06 inHg

1:00 PM

Mostly sunny

60° 💧 None 💨 14 mph H 92%30.00 inHg

7:00 PM

Mostly cloudy

71° 💧 None 💨 20 mph H 65%29.88 inHg

Saturday

1:00 AM

Mostly cloudy night

69° 💧 None 💨 21 mph H 64%29.74 inHg

7:00 AM

Mostly clear night

64° 💧 None 💨 20 mph H 82%29.65 inHg

1:00 PM

Overcast

62° 💧 None 💨 13 mph H 78%29.71 inHg

7:00 PM

Overcast

61° 💧 None 💨 14 mph H 55%29.83 inHg

Sunday

1:00 AM

Clear night

59° 💧 None 💨 11 mph H 51%29.83 inHg

7:00 AM

Clear night

52° 💧 None 💨 11 mph H 53%29.91 inHg

1:00 PM

Sunny

46° 💧 None 💨 9 mph H 68%29.94 inHg

7:00 PM

Mostly sunny

64° 💧 None 💨 9 mph H 40%29.88 inHg

Monday

1:00 AM

Clear night

62° 💧 None 💨 8 mph H 53%29.71 inHg

In Frederick and, more broadly, across the state of South Dakota: The rest of the day will be characterized by mostly cloudy skies, with temperatures remaining cool between 56 and 59 degrees Fahrenheit. There is a high likelihood of rain, with potential accumulation around 0.49 inches, especially during the afternoon hours. Expect moderate east winds blowing at up to 13 mph, with gusts reaching 22 mph. Conditions may feel damp and breezy, so plan accordingly if you're heading outside. Visibility could be reduced during periods of heavier rain, and outdoor activities might be impacted. Stay prepared for steady rainfall and be cautious on the roads if traveling later today.

15-Day Weather Outlook for Frederick

TomorrowTomorrow

Overcast 64°/52° 💧 None 💨 8 mph

Tuesday, Sep 22Tue Sep 22

Mostly sunny 63°/45° 💧 None 💨 12 mph

Wednesday, Sep 23Wed Sep 23

Light rain 62°/57° 💧 0.118 in 💨 15 mph

Thursday, Sep 24Thu Sep 24

Overcast 68°/58° 💧 0.012 in 💨 10 mph

Friday, Sep 25Fri Sep 25

Light rain 68°/60° 💧 0.078 in 💨 12 mph

Saturday, Sep 26Sat Sep 26

Light rain 69°/60° 💧 0.153 in 💨 12 mph

Sunday, Sep 27Sun Sep 27

Overcast 68°/58° 💧 0.026 in 💨 10 mph

Monday, Sep 28Mon Sep 28

Overcast 67°/63° 💧 0.004 in 💨 20 mph

Tuesday, Sep 29Tue Sep 29

Very heavy rain 63°/53° 💧 0.860 in 💨 16 mph

Wednesday, Sep 30Wed Sep 30

Sunny 68°/49° 💧 None 💨 7 mph

Thursday, Oct 1Thu Oct 1

Mostly sunny 67°/48° 💧 None 💨 8 mph

Friday, Oct 2Fri Oct 2

Overcast 71°/60° 💧 0.001 in 💨 20 mph

Saturday, Oct 3Sat Oct 3

Mostly cloudy 69°/61° 💧 0.057 in 💨 21 mph

Sunday, Oct 4Sun Oct 4

Mostly sunny 64°/46° 💧 None 💨 11 mph

Monday, Oct 5Mon Oct 5

Sunny 62°/62° 💧 None 💨 8 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Frederick

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Frederick

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 3:00 PM

PM2.5 Fine particles Good 0,9µg/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 0,9µg/m³

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

O₃ Ozone Fair 77,5µg/m³

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

NO₂ Nitrogen dioxide Good 0,5µg/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 Frederick

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 3,4Moderate 🙂Fair

Tomorrow UV 4,8Moderate 🙂Fair

Tuesday UV 5,0Moderate 😊Good

Wednesday UV 5,1Moderate 😊Good

Thursday UV 5,0Moderate 😊Good

Friday UV 6,0High —Unavailable

Saturday UV 6,0High —Unavailable

Hourly UV index today

3:00 PMUV 2,3 4:00 PMUV 1,9 5:00 PMUV 1,0 6:00 PMUV 0,3 7:00 PMUV 0,1

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

Moderate UV risk

Sunglasses and sun protection are recommended for prolonged exposure.

Acceptable air quality

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

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 Frederick

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · FREDERICK, SOUTH DAKOTA

Tonight's Stargazing & Shooting Stars

Local night-sky conditions and meteor activity for Jasper.

25/100Best-hour score

No good viewing window tonight Astronomical darkness exists, but current sky conditions are unfavorable.

☁ Cloud cover 100% Real hourly forecast for the best viewing hour.

☾ Moonlight 73% Waxing Gibbous · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 75° high at the best hour.

✦ Estimated visible meteors Poor visibility Meteor activity may occur above the clouds, but local viewing conditions are not suitable.

Chance ≥1 meteor in 30 minNot meaningful

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

ACTIVE NOW

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.

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Forecast data for Frederick were last refreshed today at 2:03 PM. The current forecast period extends through 22/09/2026 at 12:00 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.