National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Current conditions at

Merced / Castle Air Force Base (KMER)

Lat: 37.36667°NLon: 120.56667°WElev: 187.0ft.

Mostly Cloudy

N/A

Humidity NA
Wind Speed NA NA MPH
Barometer NA
Dewpoint N/A
Visibility 10.00 mi
Last update NA
Extended Forecast for

6 Miles W Merced CA

  • Overnight

    Overnight: Showers and possibly a thunderstorm. Low around 47. East southeast wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 47 °F

    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms before 11am, then showers likely and possibly a thunderstorm between 11am and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 64. Southeast wind 5 to 10 mph becoming west southwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 64 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 8pm, then a chance of rain between 8pm and 11pm. Mostly cloudy, with a low around 44. West southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.

    Low: 44 °F

    Chance
    Showers then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 67. Light north northwest wind becoming northwest 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.

    High: 67 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 43. North northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 43 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 71. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 71 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 44. Northwest wind around 5 mph.

    Low: 44 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 72. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 72 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 47. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 47 °F

    Partly Cloudy

Detailed Forecast

Overnight
Showers and possibly a thunderstorm. Low around 47. East southeast wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers and thunderstorms before 11am, then showers likely and possibly a thunderstorm between 11am and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 64. Southeast wind 5 to 10 mph becoming west southwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of showers and thunderstorms before 8pm, then a chance of rain between 8pm and 11pm. Mostly cloudy, with a low around 44. West southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Monday
Mostly sunny, with a high near 67. Light north northwest wind becoming northwest 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.
Monday Night
Mostly clear, with a low around 43. North northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Tuesday
Sunny, with a high near 71. Calm wind becoming northwest around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 44. Northwest wind around 5 mph.
Wednesday
Mostly sunny, with a high near 72. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday Night
Partly cloudy, with a low around 47. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Thursday
Sunny, with a high near 71. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Clear, with a low around 42. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Friday
Sunny, with a high near 74. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Friday Night
Mostly clear, with a low around 44. North northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Saturday
Mostly sunny, with a high near 80. Calm wind becoming northwest around 5 mph in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles W Merced CA
 37.31°N 120.58°W (Elev. 148 ft)
Last Update:
12:56 am PDT Apr 12, 2026
Forecast Valid:
1am PDT Apr 12, 2026-6pm PDT Apr 18, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation