South Fork Grand River (SD) near Cash
12 mi- Level
- 0.7 ft
- Flow
- 10 cfs
Reading from Sat 12:30 AM · NWS gauge page
1 active weather alert
Wind Advisory
Ends in 6 h 35 min
- When
- From 9 PM this evening until 9 AM MDT Saturday.
- Where
- Butte, Harding, Northern Meade Co Plains, Northern Perkins, and Southern Perkins.
Issued for this forecast zone · National Weather Service Rapid City SD
What, impacts and precautionsHide details
What
West winds 25 to 35 mph with gusts up to 55 mph expected. A few localized gusts to around 60 mph are possible.
Impacts
Sudden wind gusts can cause drivers to lose control, especially in lightweight or high profile vehicles. Strong winds can cause blowing dust, reduced visibility, and flying debris.
Precautionary actions
Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution.
Areas: Harding; Northern Perkins; Butte; Northern Meade Co Plains; Southern Perkins
See it on weather.gov (opens in a new tab)
Observed 2:10 AM MDT at KHEI
Bison, SD weather
Windy and 39°4°.
Today: low 35°2° (likely 35°2° to 37°3°), high 51°11°.
Now 39°4°
Windy · Feels like 29°−2°
- Feels like
- 29°−2°
- Wind chill from 23 mph37 km/h wind · air 39°4°
- Wind
- 23 mph37 km/hgusts 29 mph46 km/h
- From the west-northwest. 1423–32 mph51 km/h through 2 PM
- Dew point
- 34°1°
- Dry · down to 24°−4° by 11 AM
Next 48 hours
Good hours for
TonightDown to 39°4° by 5 AM · rain chance 10%
This morningUp to 43°6° by 11 AM
This afternoonUp to 50°10° by 3 PM
TonightDown to 33°1° by 1 AM
Tomorrow morningUp to 42°6° by 11 AM · freezing, low 31°−1°
Tomorrow afternoonNear 43°6° · rain chance 30%
Tomorrow nightDown to 36°2° by midnight · Rain all night (70%)
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Sat 2a | Cloudy | 46°8° (likely 44°7° to 46°8°) | 36°2° | 10% | 32 mph51 km/h from W | 63% | — | — |
| Sat 3a | Cloudy | 43°6° (likely 43°6° to 43°6°) | 32°0° | 10% | 32 mph51 km/h from NW | 67% | — | — |
| Sat 4a | Cloudy | 40°4° (likely 40°4° to 42°6°) | 28°−2° | 10% | 32 mph51 km/h from NW | 73% | — | — |
| Sat 5a | Partly cloudy | 39°4° (likely 39°4° to 41°5°) | 27°−3° | 10% | 31 mph50 km/h from NW | 73% | — | — |
| Sat 6a | Partly cloudy | 36°2° (likely 36°2° to 40°4°) | 23°−5° | 0% | 31 mph50 km/h from NW | 79% | — | — |
| Sat 7a | Partly sunny | 35°2° (likely 35°2° to 39°4°) | 21°−6° | 0% | 32 mph51 km/h from NW | 75% | — | — |
| Sat 8a | Partly sunny | 36°2° (likely 36°2° to 39°4°) | 23°−5° | 0% | 28 mph45 km/h from NW | 72% | — | — |
| Sat 9a | Mostly sunny | 39°4° (likely 39°4° to 40°4°) | 28°−2° | 0% | 26 mph42 km/h from NW | 67% | — | — |
| Sat 10a | Sunny | 41°5° (likely 41°5° to 42°6°) | 31°−1° | 0% | 25 mph40 km/h from NW | 55% | — | — |
| Sat 11a | Sunny | 43°6° (likely 43°6° to 44°7°) | 34°1° | 0% | 22 mph35 km/h from NW | 47% | — | — |
| Sat 12p | Sunny | 45°7° (likely 45°7° to 46°8°) | 37°3° | 0% | 20 mph32 km/h from NW | 40% | — | — |
| Sat 1p | Mostly sunny | 47°8° (likely 47°8° to 49°9°) | 41°5° | 0% | 15 mph24 km/h from NW | 34% | — | — |
| Sat 2p | Sunny | 49°9° (likely 49°9° to 50°10°) | 44°7° | 0% | 14 mph23 km/h from NW | 29% | — | — |
| Sat 3p | Mostly sunny | 50°10° (likely 50°10° to 51°11°) | 46°8° | 0% | 12 mph19 km/h from NW | 25% | — | — |
| Sat 4p | Mostly sunny | 49°9° (likely 49°9° to 50°10°) | 46°8° | 0% | 8 mph13 km/h from NW | 26% | — | — |
| Sat 5p | Partly sunny | 47°8° (likely 47°8° to 49°9°) | 45°7° | 0% | 5 mph8 km/h from NW | 28% | — | — |
| Sat 6p | Partly cloudy | 44°7° (likely 44°7° to 47°8°) | 44°7° | 0% | 2 mph3 km/h from NW | 35% | — | — |
| Sat 7p | Mostly cloudy | 41°5° (likely 41°5° to 45°7°) | 41°5° | 0% | 1 mph2 km/h from NW | 39% | — | — |
| Sat 8p | Partly cloudy | 39°4° (likely 39°4° to 43°6°) | 39°4° | 0% | 1 mph2 km/h from NW | 42% | — | — |
| Sat 9p | Partly cloudy | 38°3° (likely 38°3° to 42°6°) | 38°3° | 0% | 1 mph2 km/h from NW | 44% | — | — |
| Sat 10p | Partly cloudy | 37°3° (likely 37°3° to 40°4°) | 37°3° | 0% | 1 mph2 km/h from NW | 46% | — | — |
| Sat 11p | Mostly cloudy | 35°2° (likely 35°2° to 39°4°) | 35°2° | 0% | 1 mph2 km/h from N | 49% | — | — |
| Sun 12a | Mostly cloudy | 34°1° (likely 34°1° to 38°3°) | 34°1° | 0% | 1 mph2 km/h from NE | 49% | — | — |
| Sun 1a | Partly cloudy | 33°1° (likely 33°1° to 37°3°) | 33°1° | 0% | 1 mph2 km/h from SE | 51% | — | — |
| Sun 2a | Mostly cloudy | 33°1° (likely 33°1° to 37°3°) | 33°1° | 0% | 2 mph3 km/h from E | 51% | — | — |
| Sun 3a | Mostly cloudy | 33°1° (likely 33°1° to 37°3°) | 33°1° | 0% | 2 mph3 km/h from E | 51% | — | — |
| Sun 4a | Partly cloudy | 33°1° (likely 33°1° to 37°3°) | 30°−1° | 0% | 3 mph5 km/h from SE | 51% | — | — |
| Sun 5a | Mostly cloudy | 33°1° (likely 33°1° to 38°3°) | 30°−1° | 0% | 3 mph5 km/h from E | 51% | — | — |
| Sun 6a | Mostly cloudy | 31°−1° (likely 31°−1° to 38°3°) | 28°−2° | 0% | 3 mph5 km/h from E | 56% | — | — |
| Sun 7a | Mostly cloudy | 31°−1° (likely 31°−1° to 38°3°) | 26°−3° | 0% | 5 mph8 km/h from E | 56% | — | — |
| Sun 8a | Mostly cloudy | 33°1° (likely 33°1° to 39°4°) | 29°−2° | 0% | 5 mph8 km/h from E | 56% | — | — |
| Sun 9a | Cloudy | 38°3° (likely 38°3° to 41°5°) | 34°1° | 0% | 6 mph10 km/h from E | 50% | — | — |
| Sun 10a | Mostly cloudy | 41°5° (likely 41°5° to 42°6°) | 36°2° | 0% | 8 mph13 km/h from E | 44% | — | — |
| Sun 11a | Mostly cloudy | 42°6° (likely 42°6° to 43°6°) | 36°2° | 0% | 9 mph14 km/h from E | 45% | — | — |
| Sun 12p | Rain | 43°6° (likely 43°6° to 44°7°) | 37°3° | 30% | 10 mph16 km/h from E | 43% | — | — |
| Sun 1p | Rain | 44°7° (likely 44°7° to 44°7°) | 38°3° | 30% | 10 mph16 km/h from E | 43% | — | — |
| Sun 2p | Rain | 45°7° (likely 43°6° to 45°7°) | 40°4° | 30% | 10 mph16 km/h from E | 43% | — | — |
| Sun 3p | Rain | 45°7° (likely 43°6° to 45°7°) | 40°4° | 30% | 10 mph16 km/h from E | 43% | — | — |
| Sun 4p | Rain | 45°7° (likely 41°5° to 45°7°) | 40°4° | 30% | 10 mph16 km/h from E | 45% | — | — |
| Sun 5p | Rain | 43°6° (likely 40°4° to 43°6°) | 37°3° | 30% | 10 mph16 km/h from E | 51% | — | — |
| Sun 6p | Snow | 41°5° (likely 39°4° to 41°5°) | 35°2° | 70%, 0.01 in0.3 mm | 9 mph14 km/h from E | 57% | — | — |
| Sun 7p | Snow | 39°4° (likely 39°4° to 39°4°) | 33°1° | 70%, 0.01 in0.3 mm | 9 mph14 km/h from E | 64% | — | — |
| Sun 8p | Snow | 38°3° (likely 38°3° to 38°3°) | 32°0° | 70%, 0.01 in0.3 mm | 8 mph13 km/h from E | 70% | — | — |
| Sun 9p | Snow | 38°3° (likely 38°3° to 38°3°) | 32°0° | 70%, 0.01 in0.3 mm | 8 mph13 km/h from E | 73% | — | — |
| Sun 10p | Snow | 37°3° (likely 37°3° to 37°3°) | 31°−1° | 70%, 0.01 in0.3 mm | 8 mph13 km/h from E | 79% | — | — |
| Sun 11p | Snow | 37°3° (likely 37°3° to 37°3°) | 32°0° | 70%, 0.01 in0.3 mm | 7 mph11 km/h from E | 79% | — | — |
| Mon 12a | Snow | 36°2° (likely 36°2° to 36°2°) | 30°−1° | 50%, 0.01 in0.3 mm | 7 mph11 km/h from E | 82% | — | — |
| Mon 1a | Snow | 36°2° (likely 36°2° to 36°2°) | 30°−1° | 50%, 0.01 in0.3 mm | 8 mph13 km/h from E | 82% | — | — |
Days ahead
Shaded: typical range for these dates (1991–2020)
Today, Oct 24. Mostly sunny. High 51°11°, low 35°2°. Typical 55°13° / 31°−1°. Dry. One forecast only.
Morning
6 AM–noon
Mostly sunny, 36°2°Dry
Afternoon
noon–6 PM
Mostly sunny, 50°10°Dry
Evening
6 PM–midnight
Partly cloudy, 39°4°Dry
Overnight
midnight–6 AM
Mostly cloudy, 33°1°Dry
Official NWS forecast
Today: Mostly sunny. High near 51, with temperatures falling to around 49 in the afternoon. Northwest wind 8 to 32 mph, with gusts as high as 44 mph.
Tonight: Mostly cloudy. Low around 35, with temperatures rising to around 40 overnight. Northwest wind around 32 mph, with gusts as high as 48 mph.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 51°11°
- Low, likely
- 35°2°–37°3°
- Typical high / low
- 55°13° / 31°−1°
- Wind
- 22 mph36 km/h
Tomorrow, Oct 25. Rain. High 46°8°, low 32°0°. Typical 54°12° / 31°−1°. Rain 0.13 in3.3 mm, 30% chance. One forecast only.
Morning
6 AM–noon
Cloudy, 33°1°Dry
Afternoon
noon–6 PM
Rain, 45°7°30% chance
Evening
6 PM–midnight
Snow, 38°3°70% chance · 0.06 in1.5 mm
Overnight
midnight–6 AM
Snow, 36°2°50% chance · 0.02 in0.5 mm
Official NWS forecast
Day: A chance of rain after 1pm. Mostly cloudy, with a high near 46. East wind 3 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Night: A chance of rain before 7pm, then rain and snow likely between 7pm and 1am, then a chance of rain and snow. Cloudy. Low around 32, with temperatures rising to around 34 overnight. East wind 7 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 44°7°–46°8°
- Low, likely
- 32°0°–36°2°
- Typical high / low
- 54°12° / 31°−1°
- Wind
- 11 mph17 km/h
Monday, Oct 26. Snow. High 41°5°, low 28°−2°. Typical 54°12° / 30°−1°. Snow 0.37 in9.4 mm, 70% chance. One forecast only.
Official NWS forecast
Day: Snow likely before 9am, then rain and snow likely. Cloudy. High near 41, with temperatures falling to around 38 in the afternoon. East wind around 12 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
Night: Rain and snow likely before 1am. Cloudy, with a low around 28.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 36°2°–41°5°
- Low, likely
- 28°−2°–32°0°
- Typical high / low
- 54°12° / 30°−1°
- Wind
- 12 mph19 km/h
Tuesday, Oct 27. Mostly cloudy. High 46°8°, low 32°0°. Typical 53°12° / 30°−1°. Dry. One forecast only.
Official NWS forecast
Day: Mostly cloudy, with a high near 46.
Night: A chance of rain after 7pm. Mostly cloudy, with a low around 32.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 46°8°–48°9°
- Low, likely
- 32°0°–33°1°
- Typical high / low
- 53°12° / 30°−1°
- Wind
- 13 mph21 km/h
Wednesday, Oct 28. Rain. High 53°12°, low 28°−2°. Typical 52°11° / 30°−1°. Rain 0.01 in0.3 mm, 20% chance. One forecast only.
Official NWS forecast
Day: A slight chance of rain before 7am. Partly sunny, with a high near 53.
Night: Partly cloudy, with a low around 28.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 53°12°–56°13°
- Low, likely
- 28°−2°–36°2°
- Typical high / low
- 52°11° / 30°−1°
- Wind
- 9 mph15 km/h
Thursday, Oct 29. Partly sunny. High 52°11°, low 31°−1°. Typical 52°11° / 29°−2°. Dry. One forecast only.
Official NWS forecast
Day: Mostly sunny, with a high near 52.
Night: Partly cloudy, with a low around 31.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 52°11°–57°14°
- Low, likely
- 31°−1°–36°2°
- Typical high / low
- 52°11° / 29°−2°
- Wind
- 8 mph14 km/h
Friday, Oct 30. Mostly cloudy. High 52°11°, low 42°6°. Typical 52°11° / 29°−2°. Dry. One forecast only.
Official NWS forecast
Day: Partly sunny, with a high near 52.
One forecast onlyOnly one forecast covers this day, so there is nothing to compare against.
- High, likely
- 52°11°–54°12°
- Low, likely
- 42°6°
- Typical high / low
- 52°11° / 29°−2°
- Wind
- 10 mph16 km/h
The outlook
Today
Dry, high 51°, low 35°.
Tomorrow
33% chance of rain, high 46°, low 32°, cooling off.
Monday
67% chance of snow, high 41°, low 28°, cooling off.
Rest of week
Mostly dry, highs 46–53°.
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
Rivers
NOAA river gauges within 25 mi
Below flood stage
North Fork Grand River (SD) near White Butte
20 mi- Level
- -0.0 ft
Reading from Sat 12:45 AM · NWS gauge page
Shadehill Reservoir
20 mi- Level
- 2265 ft
- Flow
- under 1 cfs
Reading from Sat 1:15 AM · NWS gauge page
For your home
What this week’s weather means for heating, cooling, pipes and fresh air.
Heating this week
About 70% less heating than a typical week.
This week 50Typical 164
Heating degree days, base 65°F
Heat-pump hours, next 7 days
- h below 47°F
- 44
- 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 2 hours are near freezing and damp, when outdoor units defrost more often.
Comfort
Dry air outside (dew point 34°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?
Bison · official normals 1991–2020 · records 1916–2026
Oct 24, today vs a typical year
Today’s expected high is 4°2° colder than typical.
- Normal high / low
- 55°13° / 31°−1°
- Forecast high / low
- 51°11° / 35°2°
- Record high
- 79°26° in 1992
- Record low
- 11°−12° in 1919
Last 7 days vs normal
- —SunOct 18
- —MonOct 19
- —TueOct 20
- —WedOct 21
- —ThuOct 22
- —FriOct 23
- —SatOct 24
Bison weather by month: normals, records, snow and freeze dates
Sun & moon
Sun
Sunrise 7:18 AM, sunset 5:48 PM.
- Daylight
- 10 h 30 min
- Losing 3 min 3 s a day; shortest Dec 21, 1 h 48 min less
- Golden hour
- 5:07–6:07 PM
- Morning 6:59–8:00 AM
- Blue hour
- 6:07–6:19 PM
- Morning 6:48–6:59 AM; first light 6:48 AM
Stars tonight? Unknown
Cloud forecast not available for tonight.
Moon
Waxing gibbous
96% lit · growing
- Today
- sets 5:31 AM · rises 4:48 PM
- Full moon
- Oct 25
- New moon
- Nov 9
