Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

BLACKROCK (BKRC1)

Lat: 36.09345° N Lon: 118.26108° W Elev: 8114.0 ft.

NA

71°F

22°C

Humidity 34%
Wind Speed W 5 MPH
Barometer NA
Dewpoint 41°F (5°C)
Visibility NA
Last update 17 Aug 06:52 PM PDT
Detailed forecast for

South End of the Upper Sierra

Tonight
Partly cloudy. Lows 51 to 65. Northwest winds up to 10 mph with gusts to around 30 mph.
Tuesday
Sunny. Highs 73 to 87. Southwest winds up to 5 mph with gusts to around 20 mph increasing to 5 to 15 mph with gusts to around 30 mph in the afternoon.
Tuesday Night
Mostly cloudy in the evening then becoming partly cloudy. Lows 52 to 66. West winds up to 10 mph shifting to the north after midnight. Gusts up to 30 mph.
Wednesday
Sunny. Highs 75 to 89. Northwest winds up to 5 mph shifting to the southwest 5 to 15 mph in the afternoon.
Wednesday Night
Partly cloudy. Lows 53 to 67. West winds 5 to 10 mph with gusts to around 30 mph shifting to the northwest after midnight.
Thursday Through Monday
Mostly clear. Highs 70 to 90. Lows 49 to 68.



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646 PM PDT Mon Aug 17 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database