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Observed 3:40 PM MDT at KRAP

New Underwood, SD weather

Sunny and 54°12°.

Today: low 34°1° (likely 34°1° to 40°4°), high 54°12° (likely 53°12° to 56°13°).

Mostly agree

Now 54°12°

Sunny

Wind
14 mph22 km/h
From the north. 58–14 mph22 km/h through 4 AM
Dew point
7°−14°
Dry · up to 15°−9° by 9 PM
Humidity (notable)
15%
Fire-weather dry
UV tomorrow
1Low
Low all day (peak 1)
Air quality
54Moderate
Main pollutant: PM10 (dust)
Pressure
30.34 inHg1027 hPa
Falling · −0.05 inHg−1.6 hPa in 3 h

Next 2 hours

Light rain now, through the next 2 hours.

  1. 12:00 AM: light rain
  2. 12:15 AM: dry
  3. 12:30 AM: dry
  4. 12:45 AM: dry
  5. 1:00 AM: dry
  6. 1:15 AM: dry
  7. 1:30 AM: dry
  8. 1:45 AM: dry

Next 48 hours

Good hours for
  • Dry until 6 AM tomorrow
  • Below 50°10° tonight after 6 PM
  • Rain tomorrow from 6 AM (100%, 2.9 in74 mm)
  • Low 35°2° tomorrow at 7 AM
  • Below freezing Monday 6–8 AM (low 32°0°)
  1. This afternoonNear 52°11° · Mostly cloudy
  2. TonightDown to 38°3° by 3 AM · Mostly cloudy
  3. Tomorrow morningUp to 43°6° by 10 AM · Rain all morning (30%)
  4. Tomorrow afternoonNear 43°6° · Rain all afternoon (60%)
  5. Tomorrow nightDown to 34°1° by 5 AM · Rain all night (100%)
  6. Monday morningUp to 37°3° by 9 AM · Rain all morning (100%) · freezing, low 32°0°
  7. Monday afternoonNear 38°3° · Rain all afternoon (80%)
Hourly forecast, next 48 hours, in the place's local time
HourConditionsTemperatureFeels likePrecipitationWindHumidityCloud coverUV index
Sat 4pPartly sunny53°12° (likely 50°10° to 53°12°)53°12°0%9 mph14 km/h from N, gusts 13 mph21 km/h20%65%1
Sat 5pPartly sunny51°11° (likely 49°9° to 52°11°)48°9°0%7 mph11 km/h from NE, gusts 10 mph16 km/h21%63%0
Sat 6pPartly cloudy45°7° (likely 45°7° to 48°9°)42°6°0%6 mph10 km/h from NE, gusts 8 mph13 km/h27%56%0
Sat 7pCloudy42°6° (likely 42°6° to 45°7°)39°4°0%6 mph10 km/h from E, gusts 6 mph10 km/h30%57%0
Sat 8pClear41°5° (likely 41°5° to 44°7°)37°3°0%6 mph10 km/h from E, gusts 6 mph10 km/h33%28%0
Sat 9pMostly cloudy41°5° (likely 40°4° to 43°6°)38°3°0%5 mph8 km/h from SE, gusts 6 mph10 km/h35%61%0
Sat 10pClear42°6° (likely 39°4° to 42°6°)39°4°0%5 mph8 km/h from SE, gusts 7 mph11 km/h36%22%0
Sat 11pMostly cloudy41°5° (likely 38°3° to 41°5°)38°3°0%5 mph8 km/h from SE, gusts 6 mph10 km/h39%57%0
Sun 12aMostly cloudy40°4° (likely 37°3° to 40°4°)36°2°5%6 mph10 km/h from SE, gusts 6 mph10 km/h41%56%0
Sun 1aCloudy39°4° (likely 36°2° to 39°4°)35°2°5%6 mph10 km/h from SE, gusts 7 mph12 km/h44%69%0
Sun 2aCloudy39°4° (likely 36°2° to 39°4°)36°2°5%5 mph8 km/h from SE, gusts 7 mph11 km/h46%66%0
Sun 3aCloudy38°3° (likely 36°2° to 39°4°)34°1°5%6 mph10 km/h from SE, gusts 7 mph12 km/h50%77%0
Sun 4aCloudy38°3° (likely 36°2° to 40°4°)34°1°5%6 mph10 km/h from SE, gusts 6 mph10 km/h54%91%0
Sun 5aCloudy38°3° (likely 38°3° to 41°5°)34°1°5%6 mph10 km/h from SE, gusts 7 mph11 km/h57%97%0
Sun 6aCloudy36°2° (likely 36°2° to 42°6°)31°−1°30%, 0.01 in0.3 mm6 mph10 km/h from SE, gusts 9 mph15 km/h64%98%0
Sun 7aCloudy35°2° (likely 35°2° to 43°6°)30°−1°30%, 0.01 in0.3 mm6 mph10 km/h from SE, gusts 9 mph14 km/h69%99%0
Sun 8aCloudy37°3° (likely 37°3° to 43°6°)32°0°30%, 0.01 in0.3 mm7 mph11 km/h from SE, gusts 10 mph16 km/h72%100%0
Sun 9aCloudy41°5° (likely 41°5° to 44°7°)36°2°30%, 0.01 in0.3 mm8 mph13 km/h from E, gusts 12 mph20 km/h67%100%0
Sun 10aCloudy43°6° (likely 43°6° to 44°7°)38°3°30%, 0.01 in0.3 mm9 mph14 km/h from E, gusts 14 mph22 km/h65%100%0
Sun 11aCloudy43°6° (likely 43°6° to 44°7°)37°3°30%, 0.01 in0.3 mm10 mph16 km/h from E, gusts 13 mph21 km/h70%100%0
Sun 12pCloudy43°6° (likely 42°6° to 45°7°)37°3°60%, 0.01 in0.3 mm12 mph19 km/h from E, gusts 13 mph21 km/h73%100%0
Sun 1pCloudy44°7° (likely 41°5° to 44°7°)38°3°60%, 0.01 in0.3 mm13 mph21 km/h from E, gusts 13 mph21 km/h70%100%1
Sun 2pCloudy45°7° (likely 41°5° to 45°7°)39°4°60%, 0.01 in0.3 mm13 mph21 km/h from E, gusts 13 mph21 km/h65%100%1
Sun 3pCloudy45°7° (likely 40°4° to 45°7°)39°4°60%, 0.01 in0.3 mm13 mph21 km/h from E, gusts 13 mph21 km/h68%100%1
Sun 4pCloudy45°7° (likely 40°4° to 45°7°)39°4°60%, 0.01 in0.3 mm13 mph21 km/h from E, gusts 14 mph22 km/h68%100%1
Sun 5pCloudy43°6° (likely 39°4° to 43°6°)36°2°60%, 0.01 in0.3 mm13 mph21 km/h from E, gusts 13 mph22 km/h70%100%0
Sun 6pDrizzle41°5° (likely 39°4° to 42°6°)34°1°90%, 0.01 in0.3 mm13 mph21 km/h from E, gusts 14 mph22 km/h79%100%0
Sun 7pRain39°4° (likely 39°4° to 41°5°)32°0°90%, 0.01 in0.3 mm12 mph19 km/h from E, gusts 13 mph21 km/h85%100%0
Sun 8pDrizzle39°4° (likely 38°3° to 40°4°)32°0°90%, 0.01 in0.3 mm12 mph19 km/h from E, gusts 12 mph19 km/h85%100%0
Sun 9pRain39°4° (likely 38°3° to 39°4°)32°0°90%, 0.01 in0.3 mm12 mph19 km/h from E, gusts 12 mph20 km/h85%100%0
Sun 10pRain38°3° (likely 37°3° to 39°4°)31°−1°90%, 0.01 in0.3 mm10 mph16 km/h from E, gusts 13 mph21 km/h89%100%0
Sun 11pRain38°3° (likely 36°2° to 38°3°)31°−1°90%, 0.01 in0.3 mm10 mph16 km/h from E, gusts 13 mph21 km/h89%100%0
Mon 12aRain37°3° (likely 36°2° to 38°3°)30°−1°100%, 0.11 in2.8 mm10 mph16 km/h from NE, gusts 12 mph19 km/h92%100%0
Mon 1aRain36°2° (likely 36°2° to 38°3°)29°−2°100%, 0.11 in2.8 mm10 mph16 km/h from NE, gusts 11 mph17 km/h92%100%0
Mon 2aRain36°2° (likely 36°2° to 38°3°)29°−2°100%, 0.11 in2.8 mm10 mph16 km/h from NE, gusts 10 mph17 km/h96%100%0
Mon 3aRain35°2° (likely 35°2° to 38°3°)27°−3°100%, 0.11 in2.8 mm12 mph19 km/h from NE, gusts 11 mph17 km/h100%100%0
Mon 4aRain35°2° (likely 35°2° to 37°3°)27°−3°100%, 0.11 in2.8 mm10 mph16 km/h from NE, gusts 12 mph19 km/h100%100%0
Mon 5aDrizzle34°1° (likely 34°1° to 37°3°)26°−3°100%, 0.11 in2.8 mm10 mph16 km/h from NE, gusts 11 mph18 km/h100%100%0
Mon 6aRain32°0° (likely 32°0° to 37°3°)24°−4°100%, 0.28 in7.1 mm10 mph16 km/h from NE, gusts 11 mph17 km/h100%100%0
Mon 7aDrizzle32°0° (likely 32°0° to 37°3°)24°−4°100%, 0.28 in7.1 mm10 mph16 km/h from NE, gusts 10 mph16 km/h100%100%0
Mon 8aRain34°1° (likely 34°1° to 37°3°)26°−3°100%, 0.28 in7.1 mm10 mph16 km/h from NE, gusts 9 mph14 km/h100%100%0
Mon 9aRain37°3° (likely 33°1° to 37°3°)30°−1°100%, 0.28 in7.1 mm10 mph16 km/h from NE, gusts 10 mph15 km/h96%100%0
Mon 10aSnow37°3° (likely 33°1° to 37°3°)30°−1°100%, 0.28 in7.1 mm10 mph16 km/h from NE, gusts 8 mph13 km/h100%100%0
Mon 11aSnow37°3° (likely 33°1° to 37°3°)30°−1°100%, 0.28 in7.1 mm10 mph16 km/h from NE, gusts 8 mph13 km/h100%100%0
Mon 12pSnow37°3° (likely 33°1° to 37°3°)30°−1°80%, 0.1 in2.5 mm10 mph16 km/h from NE, gusts 8 mph13 km/h100%100%0
Mon 1pSnow38°3° (likely 32°0° to 38°3°)31°−1°80%, 0.1 in2.5 mm10 mph16 km/h from NE, gusts 8 mph14 km/h96%100%0
Mon 2pRain38°3° (likely 32°0° to 38°3°)31°−1°80%, 0.1 in2.5 mm10 mph16 km/h from NE, gusts 9 mph15 km/h92%100%1
Mon 3pRain38°3° (likely 32°0° to 38°3°)31°−1°80%, 0.1 in2.5 mm10 mph16 km/h from NE, gusts 10 mph15 km/h89%100%1

Days ahead

Shaded: typical range for these dates (1991–2020)
  1. Today, Oct 24. Cloudy. High 54°12°, low 34°1°. Typical 56°13° / 30°−1°. Dry. Mostly agree.
    1. Afternoon

      noon–6 PM

      Partly sunny, 53°12°

      Dry

    2. Evening

      6 PM–midnight

      Mostly cloudy, 41°5°

      Dry

    3. Overnight

      midnight–6 AM

      Cloudy, 38°3°

      Dry

    Official NWS forecast

    Today: Mostly sunny. High near 54, with temperatures falling to around 51 in the afternoon. Northeast wind around 9 mph, with gusts as high as 18 mph.

    Tonight: Mostly cloudy. Low around 34, with temperatures rising to around 38 overnight. East wind around 6 mph.

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

    High, likely
    53°12°–56°13°
    Low, likely
    34°1°–40°4°
    Typical high / low
    56°13° / 30°−1°
    Wind
    33 mph53 km/h, gusts 54 mph86 km/h
    UV peak
    4
  2. Tomorrow, Oct 25. Drizzle. High 46°8°, low 31°−1°. Typical 56°13° / 30°−1°. Rain 0.1 in2.5 mm, 60% chance. Forecasts agree.
    1. Morning

      6 AM–noon

      Cloudy, 37°3°

      30% chance · 0.06 in1.5 mm

    2. Afternoon

      noon–6 PM

      Cloudy, 45°7°

      60% chance · 0.06 in1.5 mm

    3. Evening

      6 PM–midnight

      Rain, 39°4°

      90% chance · 0.06 in1.5 mm

    4. Overnight

      midnight–6 AM

      Rain, 34°1°

      100% chance · 0.66 in17 mm

    Official NWS forecast

    Day: Rain likely. Cloudy. High near 46, with temperatures falling to around 43 in the afternoon. East wind 6 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

    Night: Rain. Cloudy. Low around 31, with temperatures rising to around 34 overnight. Northeast wind around 13 mph, with gusts as high as 20 mph. Chance of precipitation is 100%.

    Forecasts agreeIndependent forecasts are close; the range is narrow.

    High, likely
    43°6°–46°8°
    Low, likely
    31°−1°–37°3°
    Typical high / low
    56°13° / 30°−1°
    Wind
    11 mph17 km/h, gusts 18 mph29 km/h
    UV peak
    1
  3. Monday, Oct 26. Snow. High 39°4°, low 27°−3°. Typical 56°13° / 30°−1°. Snow 1–5 in3–13 cm, 100% chance. Mostly agree.
    1. Morning

      6 AM–noon

      Snow, 34°1°

      100% chance · 1.7 in43 mm

    2. Afternoon

      noon–6 PM

      Snow, 38°3°

      80% chance · 0.2 in0.5 cm

    3. Evening

      6 PM–midnight

      Cloudy, 32°0°

      60% chance

    4. Overnight

      midnight–6 AM

      Partly cloudy, 32°0°

      Dry

    Official NWS forecast

    Day: Rain before 7am, then rain and snow. Cloudy. High near 39, with temperatures falling to around 36 in the afternoon. Northeast wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 100%.

    Night: A slight chance of rain and snow before midnight. Mostly cloudy. Low around 27, with temperatures rising to around 30 overnight. East wind 5 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.

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

    High, likely
    36°2°–39°4°
    Low, likely
    27°−3°–33°1°
    Typical high / low
    56°13° / 30°−1°
    Wind
    9 mph14 km/h, gusts 16 mph25 km/h
  4. Tuesday, Oct 27. Partly sunny. High 60°16°, low 33°1°. Typical 55°13° / 29°−2°. Dry. Mostly agree.
    1. Morning

      6 AM–noon

      Partly sunny, 34°1°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 60°15°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 42°6°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 36°2°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Mostly sunny, with a high near 60.

    Night: Mostly clear, with a low around 33.

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

    High, likely
    58°14°–61°16°
    Low, likely
    30°−1°–34°1°
    Typical high / low
    55°13° / 29°−2°
    Wind
    21 mph34 km/h, gusts 31 mph49 km/h
    UV peak
    4
  5. Wednesday, Oct 28. Mostly sunny. High 62°17°, low 34°1°. Typical 55°13° / 29°−2°. Dry. Forecasts agree.
    1. Morning

      6 AM–noon

      Sunny, 38°3°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 57°14°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 45°7°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 37°3°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Sunny, with a high near 62.

    Night: Partly cloudy, with a low around 34.

    Forecasts agreeIndependent forecasts are close; the range is narrow.

    High, likely
    56°13°–62°17°
    Low, likely
    31°−1°–39°4°
    Typical high / low
    55°13° / 29°−2°
    Wind
    11 mph18 km/h, gusts 39 mph62 km/h
    UV peak
    3
  6. Thursday, Oct 29. Cloudy. High 63°17°, low 39°4°. Typical 54°12° / 28°−2°. Dry. Forecasts differ.
    1. Morning

      6 AM–noon

      Sunny, 38°3°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 64°18°

      Dry

    3. Evening

      6 PM–midnight

      Cloudy, 53°12°

      Dry

    4. Overnight

      midnight–6 AM

      Cloudy, 47°8°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Mostly sunny, with a high near 63.

    Night: Mostly cloudy, with a low around 39.

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

    High, likely
    60°16°–67°19°
    Low, likely
    33°1°–42°6°
    Typical high / low
    54°12° / 28°−2°
    Wind
    17 mph27 km/h, gusts 37 mph59 km/h
    UV peak
    3
  7. Friday, Oct 30. Mostly cloudy. High 62°17°, low 39°4°. Typical 54°12° / 28°−2°. Dry. Forecasts differ.
    1. Morning

      6 AM–noon

      Partly sunny, 48°9°

      Dry

    2. Afternoon

      noon–6 PM

      Mostly sunny, 62°17°

      Dry

    3. Evening

      6 PM–midnight

      Mostly clear, 51°11°

      Dry

    4. Overnight

      midnight–6 AM

      Partly cloudy, 46°8°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Partly sunny, with a high near 62.

    Night: Mostly cloudy, with a low around 39.

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

    High, likely
    53°12°–71°22°
    Low, likely
    39°4°–49°9°
    Typical high / low
    54°12° / 28°−2°
    Wind
    20 mph31 km/h, gusts 30 mph49 km/h
    UV peak
    4
  8. Saturday, Oct 31. Cloudy. High 52°11°, low 41°5°. Typical 54°12° / 28°−2°. Rain 0.08 in2 mm, 30% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Cloudy, 48°9°

      20% chance · 0.06 in1.5 mm

    2. Afternoon

      noon–6 PM

      Cloudy, 50°10°

      20% chance · 0.02 in0.5 mm

    3. Evening

      6 PM–midnight

      Mostly clear, 46°8°

      Dry

    4. Overnight

      midnight–6 AM

      Cloudy, 38°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
    37°3°–65°18°
    Low, likely
    32°0°–50°10°
    Typical high / low
    54°12° / 28°−2°
    Wind
    25 mph39 km/h
    UV peak
    3
  9. Sunday, Nov 1. Drizzle. High 52°11°, low 38°3°. Typical 53°12° / 27°−3°. Rain 0.09 in2.3 mm, 20% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Drizzle, 39°4°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 53°11°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 47°8°

      20% chance · 0.05 in1.2 mm

    4. Overnight

      midnight–6 AM

      Clear, 39°4°

      20% chance · 0.02 in0.6 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
    48°9°–60°16°
    Low, likely
    29°−2°–44°7°
    Typical high / low
    53°12° / 27°−3°
    Wind
    26 mph42 km/h, gusts 39 mph63 km/h
    UV peak
    3
  10. Monday, Nov 2. Cloudy. High 56°13°, low 37°3°. Typical 53°12° / 27°−3°. Rain 0.09 in2.3 mm, 20% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Mostly sunny, 42°5°

      20% chance

    2. Afternoon

      noon–6 PM

      Sunny, 57°14°

      20% chance

    3. Evening

      6 PM–midnight

      Cloudy, 45°7°

      20% chance

    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
    49°9°–69°21°
    Low, likely
    32°0°–40°4°
    Typical high / low
    53°12° / 27°−3°
    Wind
    28 mph45 km/h, gusts 49 mph79 km/h
    UV peak
    3

The outlook

  1. Today

    Dry, high 54°, low 34°.

  2. Tomorrow

    56% chance of rain, high 46°, low 31°, cooling off.

  3. Monday

    96% chance of snow, high 39°, low 27°, cooling off.

  4. Rest of week

    Mostly dry, highs 52–63°.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (UNR) (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

Boxelder Creek at New Underwood

0.8 mi
Below flood stage
Level
2842 ft

Reading from Sat 2:15 PM · NWS gauge page

Rapid Creek near Farmingdale

11 mi
Below flood stage
Level
5.7 ft

Reading from Sat 1:45 PM · NWS gauge page

Rapid Creek above Water Reclamation Facility near Rapid City

14 mi
Below flood stage
Level
3.4 ft
Flow
27 cfs

Reading from Sat 2:15 PM · NWS gauge page

Cheyenne River near Scenic

17 mi
Below flood stage
Level
6.2 ft
Flow
71 cfs

Reading from Sat 2:15 PM · NWS gauge page

For your home

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

Heating this week

About 68% less heating than a typical week.

This week 51Typical 160

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F
46
h below 17°F
0
h below 5°F
0

47, 17 and 5°F are the test points heat pumps are rated at. About 21 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 7°F).

Open the windows?

No stretch in the next few days is comfortable enough outside, by temperature, dew point and air quality.

Is this typical?

Rapid City Regional Airport · official normals 1991–2020 · records 1942–2026

Oct 24, today vs a typical year

Today’s expected high is 2°1° colder than typical.

Normal high / low
56°13° / 30°−1°
Forecast high / low
54°12° / 34°1°
Record high
84°29° in 1978
Record low
15°−9° in 1942

Last 7 days vs normal

On average 13°7° warmer than normal (daily mean temperature).

  1. +8°+4°SunOct 18
  2. +3°+2°MonOct 19
  3. +14°+8°TueOct 20
  4. +13°+7°WedOct 21
  5. +21°+11°ThuOct 22
  6. +21°+12°FriOct 23
  7. —SatOct 24

New Underwood weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Sunrise 7:17 AM, sunset 5:52 PM.

Daylight
10 h 35 min
Losing 2 min 53 s a day; shortest Dec 21, 1 h 42 min less
Golden hour
5:12–6:10 PM
Morning 6:59–7:58 AM
Blue hour
6:10–6:22 PM
Morning 6:48–6:59 AM; first light 6:48 AM

Stars tonight? Poor

Clouds most of the night (about 64% cover).

Moon

Waxing gibbous

98% lit · growing

Today
sets 5:32 AM · rises 4:52 PM
Full moon
Oct 25
New moon
Nov 9
Looking west from New Underwood. The highest point on the skyline is about 7,100 ft, 47 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.