Heavy Rain and Thunderstorms in the Plains; Snow in the Northern Rockies; Heavy Rain in Guam

A storm system moving over the Rockies today will bring marginal risks for excessive rainfall and severe thunderstorms from parts of New Mexico into western South Dakota. Heavy snow expected from northwestern Wyoming into southern Montana. Ongoing heavy showers and thunderstorms from Invest 96W could result in localized flash flooding, particularly in central or southern Guam early this morning. Read More >

Hazardous Weather Conditions

Current conditions at

Rapid City, Rapid City Regional Airport (KRAP)

Lat: 44.05°NLon: 103.05°WElev: 3202ft.

Fog/Mist

48°F

9°C

Humidity	89%
Wind Speed	NE 6 mph
Barometer	30.12 in (1020.3 mb)
Dewpoint	45°F (7°C)
Visibility	2.50 mi
Wind Chill	45°F (7°C)
Last update	15 Oct 5:52 am MDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

8 Miles S Nemo SD

Dense Fog Advisory October 15, 06:11am until October 15, 09:00am

Click here for hazard details and duration

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Dense Fog Advisory October 15, 06:11am until October 15, 09:00am
NOW until 9:00am Wed
Dense Fog Advisory
Today
High: 53 °F
Chance
Showers and
Dense Fog
Tonight
Low: 42 °F
Showers and
Areas Fog
Thursday
High: 57 °F
Showers
Likely and
Patchy Fog
Thursday Night
Low: 34 °F
Slight Chance
Showers then
Partly Cloudy
Friday
High: 57 °F
Mostly Sunny
Friday Night
Low: 32 °F
Partly Cloudy
then Chance
Rain/Snow
Saturday
High: 48 °F
Chance
Rain/Snow
then Sunny
Saturday Night
Low: 30 °F
Mostly Clear

Detailed Forecast

Today

Patchy drizzle with a chance of showers before 9am, then a chance of showers after 3pm. Widespread dense fog, mainly before 9am. Otherwise, cloudy, with a high near 53. Calm wind becoming southeast around 6 mph. Winds could gust as high as 15 mph. Chance of precipitation is 30%.

Tonight

Showers and possibly a thunderstorm. Areas of fog. Low around 42. Light and variable wind. Chance of precipitation is 80%.

Thursday

Showers likely. Patchy fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 57. West wind 5 to 7 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.

Thursday Night

A 20 percent chance of showers before midnight. Partly cloudy, with a low around 34. West wind around 6 mph, with gusts as high as 20 mph.

Friday

Mostly sunny, with a high near 57. West wind 6 to 10 mph, with gusts as high as 28 mph.

Friday Night

A chance of rain showers after midnight, mixing with snow after 5am. Mostly cloudy, with a low around 32. West wind around 7 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

Saturday

A chance of rain and snow showers before 11am, then a chance of rain showers between 11am and noon. Mostly sunny, with a high near 48. Northwest wind 7 to 11 mph, with gusts as high as 31 mph. Chance of precipitation is 30%.

Saturday Night

Mostly clear, with a low around 30. West wind around 6 mph, with gusts as high as 21 mph.

Sunday

Sunny, with a high near 65.

Sunday Night

Partly cloudy, with a low around 38.

Monday

A slight chance of showers. Mostly sunny, with a high near 58.

Monday Night

A chance of rain and snow showers. Partly cloudy, with a low around 31.

Tuesday

A slight chance of rain and snow showers. Mostly sunny, with a high near 51.