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Observed 4:05 PM MDT at KRAP

Green Valley, SD weather

Rainy and 37°3°, 11°6° colder than a typical Oct 25, snow 5 PM, 1–3 in3–8 cm.

Today: low 31°−1° (likely 31°−1° to 36°2°), high 45°7° (likely 42°6° to 45°7°).

Forecasts agree

Now 37°3°

Rain · Feels like 31°−1°

Feels like
31°−1°
Wind chill from 9 mph15 km/h wind · air 37°3°
Wind
9 mph15 km/h
From the east. 58–9 mph15 km/h through 4 AM
Dew point
36°2°
Comfortable
Humidity
93%
Air 37°3°, dew point 36°2° · fog or dew likely
UV tomorrow
1Low
Low all day (peak 1)
Air quality
32Good
Main pollutant: Ozone
Pressure
30.41 inHg1030 hPa
Steady over the last 3 h

Next 2 hours

No precipitation expected in the next 2 hours.

Next 48 hours

15°8° cooler than this time yesterday (54°12° then, 39°4° now)

Good hours for
  • Rain until tomorrow 6 PM (90%, 2.2 in57 mm)
  • Low 32°0° tomorrow at 7 AM
  • Below freezing tomorrow night 5–8 AM (low 29°−2°)
  1. This afternoonNear 43°6° · Rain all afternoon (40%)
  2. TonightDown to 34°1° by 5 AM · Rain all night (90%)
  3. Tomorrow morningUp to 38°3° by 11 AM · Rain all morning (90%) · freezing, low 32°0°
  4. Tomorrow afternoonNear 38°3° · Rain all afternoon (80%)
  5. Tomorrow nightDown to 32°0° by 5 AM · rain chance 10% · freezing, low 32°0° · Cloudy
  6. Tuesday morningUp to 52°11° by 11 AM · freezing, low 29°−2° · Mostly cloudy
  7. Tuesday afternoonUp to 63°17° by 2 PM · Partly cloudy
Hourly forecast, next 48 hours, in the place's local time
HourConditionsTemperatureFeels likePrecipitationWindHumidityCloud coverUV index
Sun 4pRain43°6° (likely 39°4° to 43°6°)37°3°40%, 0.01 in0.3 mm10 mph16 km/h from E, gusts 9 mph15 km/h68%100%0
Sun 5pRain42°6° (likely 38°3° to 42°6°)36°2°40%, 0.01 in0.3 mm9 mph14 km/h from E, gusts 10 mph17 km/h72%100%0
Sun 6pShowers38°3° (likely 37°3° to 39°4°)32°0°90%, 0.02 in0.5 mm7 mph11 km/h from NE, gusts 10 mph16 km/h86%100%0
Sun 7pCloudy36°2° (likely 36°2° to 39°4°)31°−1°90%, 0.02 in0.5 mm6 mph10 km/h from NE, gusts 10 mph16 km/h95%100%0
Sun 8pShowers36°2° (likely 36°2° to 38°3°)32°0°90%, 0.02 in0.5 mm6 mph10 km/h from E, gusts 8 mph14 km/h99%100%0
Sun 9pShowers38°3° (likely 35°2° to 38°3°)34°1°80%, 0.02 in0.5 mm6 mph10 km/h from E, gusts 7 mph12 km/h100%100%0
Sun 10pCloudy37°3° (likely 35°2° to 38°3°)32°0°80%, 0.02 in0.5 mm6 mph10 km/h from E, gusts 7 mph11 km/h100%100%0
Sun 11pDrizzle37°3° (likely 35°2° to 38°3°)32°0°80%, 0.02 in0.5 mm6 mph10 km/h from E, gusts 7 mph11 km/h100%100%0
Mon 12aDrizzle36°2° (likely 35°2° to 38°3°)32°0°50%, 0.02 in0.5 mm5 mph8 km/h from E, gusts 8 mph13 km/h100%100%0
Mon 1aCloudy36°2° (likely 35°2° to 38°3°)32°0°50%, 0.02 in0.5 mm5 mph8 km/h from NE, gusts 7 mph12 km/h100%100%0
Mon 2aDrizzle35°2° (likely 35°2° to 38°3°)31°−1°50%, 0.02 in0.5 mm5 mph8 km/h from NE, gusts 8 mph12 km/h100%100%0
Mon 3aCloudy35°2° (likely 35°2° to 37°3°)31°−1°80%, 0.02 in0.5 mm5 mph8 km/h from NE, gusts 7 mph11 km/h100%100%0
Mon 4aCloudy35°2° (likely 34°1° to 37°3°)31°−1°80%, 0.02 in0.5 mm5 mph8 km/h from NE, gusts 8 mph13 km/h100%100%0
Mon 5aSnow34°1° (likely 34°1° to 37°3°)30°−1°80%, 0.02 in0.5 mm5 mph8 km/h from NE, gusts 7 mph12 km/h100%100%0
Mon 6aCloudy33°1° (likely 33°1° to 37°3°)29°−2°80%, snow 0.2 in0.5 cm5 mph8 km/h from NE, gusts 8 mph12 km/h100%100%0
Mon 7aSnow32°0° (likely 32°0° to 36°2°)27°−3°80%, snow 0.2 in0.5 cm5 mph8 km/h from NE, gusts 7 mph11 km/h100%100%0
Mon 8aSnow33°1° (likely 33°1° to 36°2°)29°−2°80%, snow 0.2 in0.5 cm5 mph8 km/h from NE, gusts 6 mph10 km/h100%100%0
Mon 9aCloudy36°2° (likely 34°1° to 36°2°)32°0°90%, snow 0.2 in0.5 cm5 mph8 km/h from NE, gusts 7 mph11 km/h100%100%0
Mon 10aSnow37°3° (likely 35°2° to 37°3°)33°1°90%, snow 0.2 in0.5 cm5 mph8 km/h from NE, gusts 6 mph10 km/h100%100%0
Mon 11aSnow38°3° (likely 35°2° to 38°3°)34°1°90%, snow 0.2 in0.5 cm5 mph8 km/h from NE, gusts 5 mph8 km/h100%100%0
Mon 12pDrizzle38°3° (likely 34°1° to 38°3°)34°1°80%, 0.11 in2.8 mm5 mph8 km/h from NE, gusts 6 mph10 km/h100%100%1
Mon 1pCloudy38°3° (likely 35°2° to 38°3°)34°1°80%, 0.11 in2.8 mm5 mph8 km/h from NE, gusts 7 mph12 km/h100%100%1
Mon 2pShowers39°4° (likely 35°2° to 39°4°)36°2°80%, 0.11 in2.8 mm5 mph8 km/h from NE, gusts 7 mph11 km/h96%100%0
Mon 3pCloudy39°4° (likely 36°2° to 39°4°)36°2°60%, 0.11 in2.8 mm5 mph8 km/h from NE, gusts 7 mph12 km/h96%99%0
Mon 4pCloudy39°4° (likely 36°2° to 39°4°)36°2°60%, 0.11 in2.8 mm5 mph8 km/h from E, gusts 9 mph15 km/h96%100%0
Mon 5pCloudy38°3° (likely 35°2° to 38°3°)34°1°60%, 0.11 in2.8 mm5 mph8 km/h from E, gusts 10 mph17 km/h96%100%0
Mon 6pCloudy36°2° (likely 34°1° to 36°2°)32°0°10%5 mph8 km/h from E, gusts 11 mph18 km/h100%100%0
Mon 7pCloudy35°2° (likely 34°1° to 36°2°)31°−1°10%5 mph8 km/h from E, gusts 11 mph18 km/h100%100%0
Mon 8pCloudy34°1° (likely 33°1° to 36°2°)30°−1°10%5 mph8 km/h from SE, gusts 12 mph20 km/h100%100%0
Mon 9pCloudy34°1° (likely 33°1° to 36°2°)30°−1°10%5 mph8 km/h from SE, gusts 14 mph22 km/h100%100%0
Mon 10pCloudy33°1° (likely 33°1° to 36°2°)29°−2°10%5 mph8 km/h from SE, gusts 16 mph25 km/h100%100%0
Mon 11pCloudy33°1° (likely 33°1° to 35°2°)28°−2°10%6 mph10 km/h from SE, gusts 17 mph27 km/h100%100%0
Tue 12aCloudy33°1° (likely 33°1° to 36°2°)26°−3°0%8 mph13 km/h from SE, gusts 18 mph29 km/h100%99%0
Tue 1aCloudy33°1° (likely 33°1° to 36°2°)26°−3°0%8 mph13 km/h from SE, gusts 20 mph32 km/h100%96%0
Tue 2aCloudy33°1° (likely 33°1° to 36°2°)25°−4°0%9 mph14 km/h from SE, gusts 22 mph35 km/h100%96%0
Tue 3aCloudy33°1° (likely 33°1° to 37°3°)25°−4°0%10 mph16 km/h from S, gusts 24 mph39 km/h100%93%0
Tue 4aCloudy33°1° (likely 33°1° to 37°3°)24°−4°0%12 mph19 km/h from S, gusts 24 mph38 km/h100%99%0
Tue 5aCloudy32°0° (likely 32°0° to 38°3°)23°−5°0%12 mph19 km/h from S, gusts 23 mph37 km/h100%99%0
Tue 6aCloudy29°−2° (likely 29°−2° to 38°3°)19°−7°0%13 mph21 km/h from S, gusts 23 mph37 km/h100%99%0
Tue 7aCloudy30°−1° (likely 30°−1° to 38°3°)19°−7°0%14 mph23 km/h from S, gusts 22 mph35 km/h100%93%0
Tue 8aCloudy33°1° (likely 33°1° to 39°4°)23°−5°0%14 mph23 km/h from S, gusts 19 mph30 km/h100%73%0
Tue 9aCloudy39°4° (likely 39°4° to 43°6°)31°−1°0%15 mph24 km/h from S, gusts 16 mph26 km/h96%65%1
Tue 10aSunny45°7° (likely 45°7° to 51°11°)38°3°0%15 mph24 km/h from S, gusts 17 mph27 km/h79%39%2
Tue 11aSunny52°11° (likely 52°11° to 60°16°)52°11°0%16 mph26 km/h from S, gusts 15 mph25 km/h61%36%3
Tue 12pSunny58°14° (likely 55°13° to 63°17°)58°14°0%16 mph26 km/h from SW, gusts 20 mph32 km/h49%42%4
Tue 1pSunny61°16° (likely 59°15° to 67°19°)61°16°0%15 mph24 km/h from SW, gusts 19 mph31 km/h41%27%3
Tue 2pSunny63°17° (likely 58°14° to 68°20°)63°17°0%14 mph23 km/h from SW, gusts 18 mph30 km/h34%26%3
Tue 3pSunny63°17° (likely 57°14° to 67°19°)63°17°0%12 mph19 km/h from W, gusts 19 mph31 km/h31%25%2

Days ahead

Shaded: typical range for these dates (1991–2020)
  1. Today, Oct 25. Drizzle. High 45°7°, low 31°−1°. Typical 56°13° / 30°−1°. Rain 0.07 in1.8 mm, 40% chance. Forecasts agree.
    1. Afternoon

      noon–6 PM

      Rain, 43°6°

      40% chance · 0.02 in0.5 mm

    2. Evening

      6 PM–midnight

      Showers, 36°2°

      90% chance · 0.12 in3 mm

    3. Overnight

      midnight–6 AM

      Snow, 34°1°

      80% chance · 0.12 in3 mm

    Official NWS forecast

    Today: A chance of rain. Cloudy. High near 45, with temperatures falling to around 42 in the afternoon. East wind around 10 mph, with gusts as high as 17 mph. Chance of precipitation is 40%.

    Tonight: Rain showers before 10pm, then rain and snow showers. Cloudy. Low around 31, with temperatures rising to around 34 overnight. Northeast wind around 7 mph, with gusts as high as 16 mph. Chance of precipitation is 90%.

    Forecasts agreeIndependent forecasts are close; the range is narrow.

    High, likely
    42°6°–45°7°
    Low, likely
    31°−1°–36°2°
    Typical high / low
    56°13° / 30°−1°
    Wind
    9 mph14 km/h, gusts 17 mph27 km/h
    UV peak
    2
  2. Tomorrow, Oct 26. Snow. High 40°4°, low 26°−3°. Typical 56°13° / 30°−1°. Snow 0.08 in2 mm, 90% chance. Forecasts agree.
    1. Morning

      6 AM–noon

      Snow, 33°1°

      90% chance · 1.2 in3 cm

    2. Afternoon

      noon–6 PM

      Showers, 39°4°

      80% chance · 0.66 in17 mm

    3. Evening

      6 PM–midnight

      Cloudy, 34°1°

      Dry

    4. Overnight

      midnight–6 AM

      Cloudy, 32°0°

      Dry

    Official NWS forecast

    Day: Rain and snow showers before 9am, then rain and snow showers. Cloudy. High near 40, with temperatures falling to around 38 in the afternoon. Northeast wind around 5 mph, with gusts as high as 16 mph. Chance of precipitation is 90%. New snow accumulation of less than half an inch possible.

    Night: Mostly cloudy. Low around 26, with temperatures rising to around 32 overnight. Southeast wind 5 to 12 mph, with gusts as high as 24 mph.

    Forecasts agreeIndependent forecasts are close; the range is narrow.

    High, likely
    36°2°–40°4°
    Low, likely
    26°−3°–35°2°
    Typical high / low
    56°13° / 30°−1°
    Wind
    13 mph20 km/h, gusts 18 mph29 km/h
  3. Tuesday, Oct 27. Cloudy. High 64°18°, low 32°0°. Typical 55°13° / 29°−2°. Dry. Forecasts differ.
    1. Morning

      6 AM–noon

      Cloudy, 33°1°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 63°17°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 46°8°

      Dry

    4. Overnight

      midnight–6 AM

      Cloudy, 41°5°

      Dry

    Official NWS forecast

    Day: Mostly sunny. High near 64, with temperatures falling to around 55 in the afternoon. Southwest wind 7 to 16 mph, with gusts as high as 32 mph.

    Night: Mostly clear, with a low around 32. West wind around 5 mph.

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

    High, likely
    59°15°–68°20°
    Low, likely
    32°0°–36°2°
    Typical high / low
    55°13° / 29°−2°
    Wind
    17 mph27 km/h, gusts 28 mph45 km/h
    UV peak
    4
  4. Wednesday, Oct 28. Mostly sunny. High 62°17°, low 33°1°. Typical 55°13° / 29°−2°. Dry. Mostly agree.
    1. Morning

      6 AM–noon

      Mostly sunny, 40°5°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 59°15°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 44°7°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 39°4°

      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 33.

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

    High, likely
    56°13°–62°17°
    Low, likely
    33°1°–43°6°
    Typical high / low
    55°13° / 29°−2°
    Wind
    13 mph20 km/h, gusts 20 mph31 km/h
    UV peak
    4
  5. Thursday, Oct 29. Partly sunny. High 65°18°, low 38°3°. Typical 54°12° / 28°−2°. Dry. Mostly agree.
    1. Morning

      6 AM–noon

      Sunny, 41°5°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 63°17°

      Dry

    3. Evening

      6 PM–midnight

      Cloudy, 48°9°

      Dry

    4. Overnight

      midnight–6 AM

      Cloudy, 42°5°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Mostly sunny, with a high near 65.

    Night: Mostly cloudy, with a low around 38.

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

    High, likely
    59°15°–65°18°
    Low, likely
    36°2°–41°5°
    Typical high / low
    54°12° / 28°−2°
    Wind
    12 mph20 km/h, gusts 32 mph51 km/h
    UV peak
    4
  6. Friday, Oct 30. Mostly cloudy. High 60°16°, low 38°3°. Typical 54°12° / 28°−2°. Dry. Forecasts differ.
    1. Morning

      6 AM–noon

      Partly sunny, 44°7°

      Dry

    2. Afternoon

      noon–6 PM

      Cloudy, 60°15°

      Dry

    3. Evening

      6 PM–midnight

      Cloudy, 53°12°

      20% chance

    4. Overnight

      midnight–6 AM

      Clear, 47°8°

      20% chance

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Partly sunny, with a high near 60.

    Night: A chance of rain. Mostly cloudy, with a low around 38.

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

    High, likely
    51°11°–66°19°
    Low, likely
    38°3°–43°6°
    Typical high / low
    54°12° / 28°−2°
    Wind
    15 mph24 km/h, gusts 25 mph41 km/h
    UV peak
    3
  7. Saturday, Oct 31. Cloudy. High 57°14°, low 37°3°. Typical 54°12° / 28°−2°. Rain 0.01 in0.3 mm, 30% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Partly sunny, 49°9°

      20% chance

    2. Afternoon

      noon–6 PM

      Cloudy, 58°14°

      20% chance

    3. Evening

      6 PM–midnight

      Clear, 50°10°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 43°6°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: A chance of rain. Mostly cloudy, with a high near 57.

    Night: Mostly cloudy, with a low around 37.

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

    High, likely
    53°12°–63°17°
    Low, likely
    37°3°–48°9°
    Typical high / low
    54°12° / 28°−2°
    Wind
    14 mph22 km/h, gusts 29 mph47 km/h
    UV peak
    3
  8. Sunday, Nov 1. Drizzle. High 57°14°, low 42°6°. Typical 53°12° / 27°−3°. Rain 0.11 in2.8 mm, 30% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Cloudy, 46°8°

      Dry

    2. Afternoon

      noon–6 PM

      Cloudy, 58°14°

      20% chance

    3. Evening

      6 PM–midnight

      Drizzle, 54°12°

      30% chance · 0.03 in0.8 mm

    4. Overnight

      midnight–6 AM

      Drizzle, 44°7°

      40% chance · 0.05 in1.3 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
    51°11°–67°19°
    Low, likely
    38°3°–46°8°
    Typical high / low
    53°12° / 27°−3°
    Wind
    17 mph27 km/h, gusts 37 mph59 km/h
    UV peak
    3
  9. Monday, Nov 2. Drizzle. High 54°12°, low 40°4°. Typical 53°12° / 27°−3°. Rain 0.24 in6.1 mm, 40% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Drizzle, 46°8°

      40% chance

    2. Afternoon

      noon–6 PM

      Drizzle, 53°12°

      40% chance · 0.03 in0.8 mm

    3. Evening

      6 PM–midnight

      Cloudy, 42°5°

      40% chance

    4. Overnight

      midnight–6 AM

      Cloudy, 39°4°

      40% 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
    48°9°–63°17°
    Low, likely
    32°0°–50°10°
    Typical high / low
    53°12° / 27°−3°
    Wind
    23 mph37 km/h, gusts 45 mph72 km/h
    UV peak
    2
  10. Tuesday, Nov 3. Cloudy. High 49°9°, low 37°3°. Typical 52°11° / 26°−3°. Rain 0.26 in6.6 mm, 40% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Cloudy, 42°6°

      30% chance · 0.4 in1.1 cm

    2. Afternoon

      noon–6 PM

      Cloudy, 48°9°

      20% chance · 0.14 in3.7 mm

    3. Evening

      6 PM–midnight

      Partly 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
    40°4°–55°13°
    Low, likely
    32°0°–42°6°
    Typical high / low
    52°11° / 26°−3°
    Wind
    27 mph43 km/h, gusts 46 mph73 km/h
    UV peak
    2

The outlook

  1. Today

    44% chance of rain, high 45°, low 31°.

  2. Tomorrow

    91% chance of snow, high 40°, low 26°, cooling off.

  3. Tuesday

    Dry, high 64°, low 32°, warming up.

  4. Rest of week

    Highs 49–65°; chance of precipitation on Monday.

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

Rapid Creek above Water Reclamation Facility near Rapid City

1.0 mi
Below flood stage
Level
3.3 ft
Flow
26 cfs

Reading from Sun 3:15 PM · NWS gauge page

Rapid Creek at Founders Park

7.2 mi
Below flood stage
Level
3.3 ft

Reading from Sun 2:30 PM · NWS gauge page

Rapid Creek above Canyon Lake near Rapid City

10 mi
Below flood stage
Level
1.5 ft
Flow
6 cfs

Reading from Sun 3:25 PM · NWS gauge page

South Canyon near Rapid City

11 mi
Below flood stage
Level
3.6 ft
Flow
under 1 cfs

Reading from Sun 2:45 PM · NWS gauge page

For your home

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

Heating this week

About 67% less heating than a typical week.

This week 53Typical 162

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F
42
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 40 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 36°F).

Open the windows?

Tue, 1:00 PM–3:00 PM

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

Is this typical?

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

Oct 25, today vs a typical year

Today’s expected high is 11°6° colder than typical.

Normal high / low
56°13° / 30°−1°
Forecast high / low
45°7° / 31°−1°
Record high
82°28° in 2007
Record low
9°−13° in 1997

Last 7 days vs normal

On average 12°6° warmer than normal (daily mean temperature).

  1. +3°+2°MonOct 19
  2. +14°+8°TueOct 20
  3. +13°+7°WedOct 21
  4. +21°+11°ThuOct 22
  5. +21°+12°FriOct 23
  6. −1°SatOct 24
  7. —SunOct 25

Green Valley weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Sunrise 7:20 AM, sunset 5:52 PM.

Daylight
10 h 32 min
Losing 2 min 49 s a day; shortest Dec 21, 1 h 39 min less
Golden hour
5:11–6:10 PM
Morning 7:01–8:00 AM
Blue hour
6:10–6:21 PM
Morning 6:50–7:01 AM; first light 6:50 AM

Stars tonight? Poor

Clouds most of the night (about 100% cover).

Moon

Full moon

100% lit · growing

Today
sets 6:48 AM · rises 5:17 PM
Full moon
Today, 10:12 PM
New moon
Nov 9
Looking west from Green Valley. The highest point on the skyline is about 7,100 ft, 24 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.