Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Spearfish / Clyde Ice (KSPF)

Lat: 44.48° N Lon: 103.78° W Elev: 3898 ft.

Fair

66°F

19°C

Humidity	56%
Wind Speed	SW 7 mph
Barometer	30.04 in
Dewpoint	50°F (10°C)
Visibility	10.00 mi
Last update	18 Aug 12:55 am MDT

More Information:

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

Detailed forecast for

Northern Black Hills

Overnight

Partly cloudy. Lows in the mid 50s. Southwest winds around 5 mph.

Monday

Mostly sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the upper 70s. Southwest winds around 5 mph, becoming north in the afternoon. Chance of rain 50 percent.

Monday Night

Clear. Lows in the mid 50s. South winds 5 to 10 mph.

Tuesday

Sunny. Highs in the lower 80s. Southeast winds 5 to 10 mph. Gusts up to 20 mph in the afternoon.

Tuesday Night

Clear. Lows in the upper 50s. South winds 5 to 10 mph with gusts up to 20 mph.

Wednesday

Sunny. Highs in the mid 80s.

Wednesday Night

Clear. Lows in the lower 60s.

Thursday

Mostly sunny. Highs in the lower 80s.

Thursday Night

Mostly clear with a slight chance of showers and thunderstorms in the evening, then partly cloudy with a chance of showers after midnight. Lows in the lower 50s. Chance of rain 50 percent.

Friday

Partly cloudy. A chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs around 70. Chance of rain 60 percent.

Friday Night

A chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Lows in the mid 40s. Chance of rain 50 percent.

Saturday

Partly cloudy. A slight chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the upper 60s. Chance of rain 40 percent.

Saturday Night

A chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Lows in the mid 40s. Chance of rain 30 percent.

Sunday

Mostly sunny with a slight chance of showers in the morning, then partly cloudy with a chance of showers and thunderstorms in the afternoon. Highs in the upper 60s. Chance of rain 30 percent.