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Observed 1:56 AM CDT at K8D3

Summit, SD weather

Clear and 68°20°, rain ~8–10 AM (53%).

Today: low 55°13° (likely 39°4° to 55°13°), high 57°14° (likely 57°14° to 66°19°).

Mostly agree

Now 68°20°

Clear

Wind
17 mph28 km/hgusts 28 mph45 km/h
From the south-southeast. Gusts to 39 mph63 km/h around 4 AM
Dew point
48°9°
Comfortable · down to 40°4° by 12 PM
UV index
0Low
Moderate 12–4 PM · peak 3
Pressure
29.86 inHg1011 hPa
Steady over the last 3 h

Next 2 hours

No precipitation expected in the next 2 hours.

Next 48 hours

Good hours for
  • Dry until 8 AM
  • Gusts to 39 mph63 km/h until 2 PM
  • Rain today 8–11 AM (50%)
  • Below 50°10° tonight after 7 PM
  • Rain tomorrow from 3 PM (60%, 0.58 in15 mm)
  1. TonightNear 62°17° · gusts to 39 mph63 km/h · Partly cloudy
  2. This morningDown to 55°13° by 9 AM · Rain 8–11 AM (50%) · gusts to 35 mph56 km/h
  3. This afternoonNear 53°12° · rain chance 10% · gusts to 28 mph45 km/h · Mostly cloudy
  4. TonightDown to 41°5° by 5 AM · Mostly cloudy
  5. Tomorrow morningNear 43°6° · Cloudy
  6. Tomorrow afternoonNear 45°7° · Rain 3–6 PM (40%)
  7. Tomorrow nightNear 43°6° · Rain all night (60%)
Hourly forecast, next 48 hours, in the place's local time
HourConditionsTemperatureFeels likePrecipitationWindHumidityCloud coverUV index
Sat 3aClear62°17° (likely 62°17° to 65°18°)62°17°5%26 mph42 km/h from SSW, gusts 39 mph63 km/h65%28%0
Sat 4aCloudy62°17° (likely 62°17° to 65°18°)62°17°5%25 mph40 km/h from SSW, gusts 39 mph63 km/h65%38%0
Sat 5aCloudy61°16° (likely 61°16° to 64°18°)61°16°0%24 mph39 km/h from SSW, gusts 37 mph60 km/h67%37%0
Sat 6aMostly clear61°16° (likely 60°16° to 63°17°)61°16°0%22 mph35 km/h from SW, gusts 35 mph56 km/h69%26%0
Sat 7aRain61°16° (likely 59°15° to 61°16°)61°16°30%, 0.01 in0.3 mm17 mph27 km/h from WSW, gusts 29 mph47 km/h70%71%0
Sat 8aCloudy57°14° (likely 56°13° to 59°15°)57°14°40%, 0.01 in0.3 mm17 mph27 km/h from W, gusts 26 mph42 km/h72%87%0
Sat 9aRain55°13° (likely 52°11° to 55°13°)55°13°50%, 0.01 in0.3 mm18 mph29 km/h from WNW, gusts 28 mph46 km/h72%94%0
Sat 10aRain56°13° (likely 48°9° to 56°13°)56°13°40%, 0.01 in0.3 mm18 mph29 km/h from NW, gusts 31 mph50 km/h62%98%1
Sat 11aRain55°13° (likely 46°8° to 55°13°)55°13°20%, 0.01 in0.3 mm18 mph29 km/h from NW, gusts 28 mph45 km/h61%95%2
Sat 12pCloudy54°12° (likely 47°8° to 54°12°)54°12°5%, 0.01 in0.3 mm17 mph27 km/h from NW, gusts 28 mph45 km/h59%91%3
Sat 1pCloudy52°11° (likely 47°8° to 52°11°)52°11°5%16 mph26 km/h from NW, gusts 25 mph41 km/h61%79%3
Sat 2pCloudy55°13° (likely 48°9° to 55°13°)55°13°10%15 mph24 km/h from NW, gusts 23 mph36 km/h51%89%3
Sat 3pCloudy53°12° (likely 49°9° to 53°12°)53°12°5%14 mph23 km/h from NW, gusts 22 mph35 km/h52%90%3
Sat 4pCloudy52°11° (likely 50°10° to 54°12°)52°11°0%13 mph21 km/h from NW, gusts 18 mph30 km/h52%84%2
Sat 5pCloudy52°11° (likely 50°10° to 53°12°)52°11°0%10 mph16 km/h from NNW, gusts 16 mph26 km/h50%71%1
Sat 6pCloudy50°10° (likely 48°9° to 51°11°)47°8°0%8 mph13 km/h from NNW, gusts 12 mph20 km/h50%78%0
Sat 7pCloudy48°9° (likely 45°7° to 48°9°)45°7°0%6 mph10 km/h from NW, gusts 12 mph19 km/h54%87%0
Sat 8pCloudy47°8° (likely 43°6° to 47°8°)44°7°0%6 mph10 km/h from NW, gusts 12 mph19 km/h51%83%0
Sat 9pPartly cloudy46°8° (likely 42°6° to 46°8°)42°6°0%7 mph11 km/h from NW, gusts 12 mph19 km/h51%44%0
Sat 10pMostly cloudy46°8° (likely 41°5° to 46°8°)42°6°0%7 mph11 km/h from NW, gusts 12 mph19 km/h49%47%0
Sat 11pClear45°7° (likely 39°4° to 45°7°)41°5°0%7 mph11 km/h from NNW, gusts 12 mph19 km/h49%40%0
Sun 12aClear45°7° (likely 39°4° to 45°7°)41°5°0%7 mph11 km/h from NNW, gusts 12 mph19 km/h47%40%0
Sun 1aClear45°7° (likely 38°3° to 45°7°)41°5°0%7 mph11 km/h from NNW, gusts 11 mph17 km/h45%38%0
Sun 2aCloudy44°7° (likely 38°3° to 44°7°)40°4°0%7 mph11 km/h from NNW, gusts 11 mph18 km/h47%75%0
Sun 3aCloudy43°6° (likely 37°3° to 43°6°)39°4°0%6 mph10 km/h from N, gusts 12 mph19 km/h49%83%0
Sun 4aCloudy43°6° (likely 37°3° to 43°6°)39°4°0%6 mph10 km/h from N, gusts 12 mph19 km/h47%76%0
Sun 5aCloudy41°5° (likely 37°3° to 41°5°)37°3°0%6 mph10 km/h from N, gusts 12 mph19 km/h48%80%0
Sun 6aCloudy41°5° (likely 36°2° to 41°5°)37°3°0%6 mph10 km/h from N, gusts 11 mph17 km/h48%90%0
Sun 7aCloudy41°5° (likely 36°2° to 41°5°)37°3°0%6 mph10 km/h from NNE, gusts 10 mph16 km/h48%94%0
Sun 8aCloudy40°4° (likely 36°2° to 41°5°)36°2°0%6 mph10 km/h from NNE, gusts 10 mph17 km/h52%98%0
Sun 9aCloudy41°5° (likely 37°3° to 42°6°)37°3°5%6 mph10 km/h from NE, gusts 10 mph17 km/h53%97%0
Sun 10aCloudy43°6° (likely 40°4° to 43°6°)39°4°5%6 mph10 km/h from NE, gusts 12 mph19 km/h49%100%1
Sun 11aCloudy44°7° (likely 41°5° to 44°7°)41°5°5%6 mph10 km/h from NE, gusts 10 mph16 km/h49%100%1
Sun 12pCloudy44°7° (likely 40°4° to 44°7°)40°4°10%7 mph11 km/h from NE, gusts 9 mph14 km/h49%100%2
Sun 1pCloudy43°6° (likely 39°4° to 45°7°)39°4°5%, 0.05 in1.3 mm7 mph11 km/h from ENE, gusts 14 mph22 km/h53%100%3
Sun 2pDrizzle44°7° (likely 39°4° to 44°7°)40°4°10%, 0.05 in1.3 mm7 mph11 km/h from NE, gusts 12 mph20 km/h51%100%2
Sun 3pRain44°7° (likely 38°3° to 44°7°)40°4°40%, 0.05 in1.3 mm7 mph11 km/h from NE, gusts 13 mph21 km/h53%100%1
Sun 4pRain44°7° (likely 37°3° to 44°7°)40°4°40%, 0.05 in1.3 mm7 mph11 km/h from NE, gusts 14 mph22 km/h55%100%0
Sun 5pRain45°7° (likely 37°3° to 45°7°)41°5°40%, 0.05 in1.3 mm7 mph11 km/h from NE, gusts 13 mph21 km/h53%100%0
Sun 6pRain44°7° (likely 37°3° to 44°7°)40°4°20%, 0.05 in1.3 mm7 mph11 km/h from NE, gusts 13 mph20 km/h58%100%0
Sun 7pDrizzle44°7° (likely 37°3° to 44°7°)40°4°60%, 0.06 in1.5 mm7 mph11 km/h from NE, gusts 13 mph20 km/h60%100%0
Sun 8pDrizzle44°7° (likely 37°3° to 44°7°)40°4°60%, 0.06 in1.5 mm7 mph11 km/h from ENE, gusts 14 mph22 km/h60%100%0
Sun 9pDrizzle43°6° (likely 37°3° to 43°6°)38°3°60%, 0.06 in1.5 mm8 mph13 km/h from ENE, gusts 14 mph22 km/h62%99%0
Sun 10pRain43°6° (likely 38°3° to 43°6°)38°3°60%, 0.06 in1.5 mm9 mph14 km/h from NE, gusts 15 mph24 km/h65%100%0
Sun 11pRain43°6° (likely 38°3° to 43°6°)37°3°60%, 0.06 in1.5 mm10 mph16 km/h from NE, gusts 16 mph26 km/h65%100%0
Mon 12aRain43°6° (likely 37°3° to 43°6°)37°3°60%, 0.06 in1.5 mm10 mph16 km/h from NE, gusts 17 mph27 km/h65%100%0
Mon 1aRain43°6° (likely 37°3° to 43°6°)37°3°40%, 0.01 in0.3 mm10 mph16 km/h from NE, gusts 17 mph27 km/h65%100%0
Mon 2aRain42°6° (likely 36°2° to 45°7°)36°2°40%, 0.01 in0.3 mm10 mph16 km/h from NE, gusts 19 mph31 km/h67%100%0

Days ahead

Shaded: typical range for these dates (1991–2020)
  1. Today, Oct 24. Rain. High 57°14°, low 55°13°. Typical 53°12° / 31°−1°. Rain 0.14 in3.6 mm, 50% chance. Mostly agree.
    1. Morning

      6 AM–noon

      Rain, 57°14°

      50% chance · 0.05 in1.3 mm

    2. Afternoon

      noon–6 PM

      Cloudy, 55°13°

      Dry

    3. Evening

      6 PM–midnight

      Partly cloudy, 47°8°

      Dry

    4. Overnight

      midnight–6 AM

      Cloudy, 41°5°

      Dry

    Official NWS forecast

    Today: A chance of rain between 7am and noon. Mostly cloudy. High near 57, with temperatures falling to around 52 in the afternoon. West northwest wind 10 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.

    Tonight: Partly cloudy. Low around 55, with temperatures rising to around 61 overnight. South southwest wind around 26 mph, with gusts as high as 38 mph.

    Mostly agreeIndependent forecasts are fairly close; small surprises are possible.

    High, likely
    57°14°–66°19°
    Low, likely
    39°4°–55°13°
    Typical high / low
    53°12° / 31°−1°
    Wind
    27 mph44 km/h, gusts 49 mph79 km/h
    UV peak
    3
  2. Tomorrow, Oct 25. Rain. High 46°8°, low 36°2°. Typical 52°11° / 30°−1°. Rain 0.28 in7.1 mm, 40% chance. Mostly agree.
    1. Morning

      6 AM–noon

      Cloudy, 40°4°

      Dry

    2. Afternoon

      noon–6 PM

      Rain, 45°7°

      40% chance · 0.25 in6.4 mm

    3. Evening

      6 PM–midnight

      Rain, 44°7°

      60% chance · 0.35 in8.9 mm

    4. Overnight

      midnight–6 AM

      Rain, 39°4°

      60% chance · 0.11 in2.8 mm

    Official NWS forecast

    Day: A chance of rain after 3pm. Cloudy, with a high near 46. Northeast wind around 7 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

    Night: Rain likely. Cloudy, with a low around 36. Northeast wind 7 to 13 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.

    Mostly agreeIndependent forecasts are fairly close; small surprises are possible.

    High, likely
    42°6°–46°8°
    Low, likely
    36°2°–40°4°
    Typical high / low
    52°11° / 30°−1°
    Wind
    13 mph21 km/h, gusts 20 mph32 km/h
    UV peak
    3
  3. Monday, Oct 26. Rain. High 40°4°, low 35°2°. Typical 52°11° / 30°−1°. Rain 0.91 in23 mm, 80% chance. Mostly agree.
    1. Morning

      6 AM–noon

      Rain, 38°3°

      80% chance · 0.15 in3.8 mm

    2. Afternoon

      noon–6 PM

      Rain, 37°3°

      90% chance · 0.41 in10 mm

    3. Evening

      6 PM–midnight

      Rain, 38°3°

      90% chance · 0.38 in9.6 mm

    4. Overnight

      midnight–6 AM

      Drizzle, 39°4°

      90% chance · 0.1 in2.5 mm

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Rain. Cloudy, with a high near 40. Northeast wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Night: Rain. Cloudy, with a low around 35. East northeast wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 90%.

    Mostly agreeIndependent forecasts are fairly close; small surprises are possible.

    High, likely
    39°4°–43°6°
    Low, likely
    35°2°–38°3°
    Typical high / low
    52°11° / 30°−1°
    Wind
    21 mph34 km/h, gusts 33 mph54 km/h
  4. Tuesday, Oct 27. Rain. High 48°9°, low 42°6°. Typical 51°11° / 29°−2°. Rain 0.27 in6.9 mm, 80% chance. Mostly agree.
    1. Morning

      6 AM–noon

      Fog, 42°5°

      70% chance

    2. Afternoon

      noon–6 PM

      Partly sunny, 52°11°

      Dry

    3. Evening

      6 PM–midnight

      Drizzle, 50°10°

      30% chance · 0.14 in3.6 mm

    4. Overnight

      midnight–6 AM

      Drizzle, 46°8°

      20% chance · 0.02 in0.6 mm

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Rain before 1pm. Mostly cloudy, with a high near 48. South southwest wind 8 to 12 mph. Chance of precipitation is 80%.

    Night: A chance of rain after 7pm. Mostly cloudy, with a low around 42. South wind 6 to 12 mph. Chance of precipitation is 50%.

    Mostly agreeIndependent forecasts are fairly close; small surprises are possible.

    High, likely
    48°9°–55°13°
    Low, likely
    39°4°–42°6°
    Typical high / low
    51°11° / 29°−2°
    Wind
    20 mph32 km/h, gusts 36 mph58 km/h
    UV peak
    3
  5. Wednesday, Oct 28. Rain. High 54°12°, low 38°3°. Typical 50°10° / 29°−2°. Rain 0.03 in0.8 mm, 50% chance. Forecasts agree.
    1. Morning

      6 AM–noon

      Mostly sunny, 42°6°

      20% chance

    2. Afternoon

      noon–6 PM

      Sunny, 55°13°

      Dry

    3. Evening

      6 PM–midnight

      Cloudy, 46°8°

      Dry

    4. Overnight

      midnight–6 AM

      Cloudy, 42°5°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: A chance of rain before 1pm. Partly sunny, with a high near 54. Chance of precipitation is 50%.

    Night: Partly cloudy, with a low around 38.

    Forecasts agreeIndependent forecasts are close; the range is narrow.

    High, likely
    54°12°–57°14°
    Low, likely
    38°3°–45°7°
    Typical high / low
    50°10° / 29°−2°
    Wind
    23 mph37 km/h, gusts 45 mph73 km/h
    UV peak
    3
  6. Thursday, Oct 29. Partly sunny. High 53°12°, low 40°4°. Typical 50°10° / 28°−2°. Dry. Forecasts differ.
    1. Morning

      6 AM–noon

      Sunny, 42°6°

      Dry

    2. Afternoon

      noon–6 PM

      Partly sunny, 56°13°

      Dry

    3. Evening

      6 PM–midnight

      Mostly clear, 49°9°

      Dry

    4. Overnight

      midnight–6 AM

      Mostly clear, 42°6°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Mostly sunny, with a high near 53.

    Night: Partly cloudy, with a low around 40.

    Forecasts differIndependent forecasts disagree; expect changes and plan for the range.

    High, likely
    52°11°–60°16°
    Low, likely
    37°3°–43°6°
    Typical high / low
    50°10° / 28°−2°
    Wind
    14 mph23 km/h, gusts 43 mph69 km/h
    UV peak
    3
  7. Friday, Oct 30. Snow. High 54°12°, low 43°6°. Typical 49°9° / 28°−2°. Snow 0.07 in1.8 mm, 20% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Cloudy, 43°6°

      Dry

    2. Afternoon

      noon–6 PM

      Cloudy, 55°13°

      Dry

    3. Evening

      6 PM–midnight

      Cloudy, 53°11°

      20% chance · 0.02 in0.5 mm

    4. Overnight

      midnight–6 AM

      Fog, 51°11°

      30% chance · 0.02 in0.5 mm

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: A slight chance of rain and snow after 7am. Partly sunny, with a high near 54. Chance of precipitation is 20%.

    Forecasts differIndependent forecasts disagree; expect changes and plan for the range.

    High, likely
    49°9°–65°18°
    Low, likely
    37°3°–51°11°
    Typical high / low
    49°9° / 28°−2°
    Wind
    16 mph26 km/h, gusts 26 mph42 km/h
    UV peak
    3
  8. Saturday, Oct 31. Drizzle. High 62°17°, low 52°11°. Typical 48°9° / 28°−2°. Rain 0.11 in2.8 mm, 30% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Fog, 54°12°

      30% chance

    2. Afternoon

      noon–6 PM

      Cloudy, 63°17°

      20% chance

    3. Evening

      6 PM–midnight

      Drizzle, 59°15°

      30% chance · 0.01 in0.3 mm

    4. Overnight

      midnight–6 AM

      Drizzle, 51°11°

      30% chance · 0.03 in0.8 mm

    Hours this far out come from computer models only.

    The National Weather Service writes about seven days ahead; this day is our model forecast only.

    Forecasts differIndependent forecasts disagree; expect changes and plan for the range.

    High, likely
    56°13°–65°18°
    Low, likely
    46°8°–59°15°
    Typical high / low
    48°9° / 28°−2°
    Wind
    21 mph34 km/h, gusts 35 mph56 km/h
    UV peak
    3
  9. Sunday, Nov 1. Drizzle. High 55°13°, low 42°6°. Typical 48°9° / 27°−3°. Rain 0.14 in3.6 mm, 30% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Cloudy, 47°8°

      Dry

    2. Afternoon

      noon–6 PM

      Cloudy, 45°7°

      Dry

    3. Evening

      6 PM–midnight

      Cloudy, 42°6°

      Dry

    4. Overnight

      midnight–6 AM

      Cloudy, 39°4°

      Dry

    Hours this far out come from computer models only.

    The National Weather Service writes about seven days ahead; this day is our model forecast only.

    Forecasts differIndependent forecasts disagree; expect changes and plan for the range.

    High, likely
    50°10°–58°14°
    Low, likely
    36°2°–46°8°
    Typical high / low
    48°9° / 27°−3°
    Wind
    18 mph29 km/h, gusts 33 mph53 km/h
    UV peak
    1
  10. Monday, Nov 2. Cloudy. High 46°8°, low 36°2°. Typical 47°8° / 27°−3°. Dry. Forecasts differ.
    1. Morning

      6 AM–noon

      Drizzle, 40°4°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 39°4°

      Dry

    3. Evening

      6 PM–midnight

      Rain, 37°3°

      Dry

    Hours this far out come from computer models only.

    The National Weather Service writes about seven days ahead; this day is our model forecast only.

    Forecasts differIndependent forecasts disagree; expect changes and plan for the range.

    High, likely
    41°5°–49°9°
    Low, likely
    34°1°–41°5°
    Typical high / low
    47°8° / 27°−3°
    Wind
    24 mph38 km/h, gusts 41 mph65 km/h

The outlook

  1. Today

    53% chance of rain, high 57°, low 55°.

  2. Tomorrow

    44% chance of rain, high 46°, low 36°, cooling off.

  3. Monday

    82% chance of rain, high 40°, low 35°, cooling off.

  4. Rest of week

    Highs 46–62°; chance of precipitation on Tuesday, Wednesday.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (ABR) (opens in a new tab)

What changed since yesterday

No meaningful changes from yesterday’s forecast.

Radar

Radar data: NOAA MRMS, rendered by forecast.blue
Radar loads when scrolled into view

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Big Sioux River near Florence

11 mi
Below flood stage
Level
2.9 ft

Reading from Sat 2 AM · NWS gauge page

Mud Creek near Rauville

21 mi
Below flood stage
Level
7.7 ft

Reading from Sat 2 AM · NWS gauge page

South Fork Whetstone River near Milbank

21 mi
Below flood stage
Level
1104 ft
Flow
under 1 cfs

Reading from Sat 1:15 AM · NWS gauge page

North Fork Whetstone River near Milbank

22 mi
Below flood stage
Level
1050 ft
Flow
under 1 cfs

Reading from Sat 2:15 AM · NWS gauge page

For your home

What this week’s weather means for heating, cooling, pipes and fresh air.

Heating this week

About 80% less heating than a typical week.

This week 34Typical 174

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F
31
h below 17°F
0
h below 5°F
0

47, 17 and 5°F are the test points heat pumps are rated at.

Comfort

Dry air outside (dew point 48°F).

Open the windows?

Today, 4:00 AM–6:00 AM

Good stretch to open the windows (air quality forecast not available for part of this window).

Is this typical?

Summit 1 W · official normals 1991–2020 · records 1956–2026

Oct 24, today vs a typical year

Today’s expected high is 4°2° warmer than typical.

Normal high / low
53°12° / 31°−1°
Forecast high / low
57°14° / 55°13°
Record high
78°26° in 1989
Record low
7°−14° in 2020

Last 7 days vs normal

On average 11°6° warmer than normal (daily mean temperature).

  1. +5°+3°SunOct 18
  2. +9°+5°MonOct 19
  3. +10°+5°TueOct 20
  4. +14°+8°WedOct 21
  5. +11°+6°ThuOct 22
  6. +19°+10°FriOct 23
  7. —SatOct 24

Summit weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Sunrise 7:56 AM, sunset 6:27 PM.

Daylight
10 h 31 min
Losing 2 min 58 s a day; shortest Dec 21, 1 h 47 min less
Golden hour
5:46–6:46 PM
Morning 7:37–8:37 AM
Blue hour
6:46–6:57 PM
Morning 7:26–7:37 AM; first light 7:26 AM

Stars tonight? Poor

Clouds most of the night (about 40% cover).

Moon

Waxing gibbous

96% lit · growing

Today
sets 6:08 AM · rises 5:27 PM
Full moon
Oct 25
New moon
Nov 9
Looking west from Summit. A level horizon.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.