South Union, Washington Weather
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Weather Forecast for South Union, Washington : Thurston County
Issued: 1:33 pm PDT May 11, 2025 Latitude: 46.9431532 Longitude: -122.9073594 View on Google Maps

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This Afternoon Tonight Monday Tuesday Wednesday Thursday Friday Saturday
70% chance of thunderstorms on This Afternoon 30% chance of thunderstorms on Tonight 60% chance of thunderstorms on Monday Mostly Cloudy on Tuesday Mostly Cloudy on Wednesday Mostly Cloudy on Thursday 20% chance of rain on Friday 20% chance of rain on Saturday
High: 59°F Low: 42°F High: 62°F High: 64°F High: 63°F High: 63°F High: 63°F High: 64°F
Low: 44°F Low: 46°F Low: 41°F Low: 44°F Low: 47°F  
Thunderstorms Thunderstorms Thunderstorms Mostly Cloudy Mostly Cloudy Mostly Cloudy Rain Rain
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Current Conditions at
OLYMPIA - (KOLM)
59°
Mostly Cloudy
as of 12:54 PM PDST
Rel. Humidity: 51%
Dew Point: 41°F
Visibility: 10 Miles
Pressure: 29.78 in.
Flight Rule: VFR
Wind Data
6 MPH
240° Southwest
Cloud Level(s): Few at 3900ft, Broken at 11000ft
Current Conditions at
FORT LEWIS - (KGRF)
63°
Cloudy
as of 12:58 PM PDST
Rel. Humidity: 42%
Dew Point: 39°F
Visibility: 10 Miles
Pressure: 29.75 in.
Flight Rule: VFR
Wind Data
13 MPH
150° Southeast
Cloud Level(s): Scattered at 4600ft, Solid Overcast at 11000ft
Current Conditions at
CHEHALIS-CENTRALIA - (KCLS)
54°
Partly Cloudy
Haze
as of 1:35 PM PDST
Rel. Humidity: 87%
Dew Point: 50°F
Visibility: 2 Miles
Pressure: 29.80 in.
Flight Rule: IFR
Wind Data
13 MPH
Gust: 20 MPH
170° South
Cloud Level(s): Scattered at 4400ft, Scattered at 5500ft
Current Conditions at
SHELTON - (KSHN)
59°
Mostly Cloudy
as of 12:53 PM PDST
Rel. Humidity: 47%
Dew Point: 39°F
Visibility: 10 Miles
Pressure: 29.76 in.
Flight Rule: VFR
Wind Data
6 MPH
250° West
Cloud Level(s): Few at 5000ft, Broken at 6500ft, Broken at 7500ft
70% chance of thunderstorms This Afternoon This Afternoon... A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a steady temperature around 59. West southwest wind around 7 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
30% chance of thunderstorms Tonight Tonight... A chance of rain and thunderstorms before 9pm, then a chance of rain after 3am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 42. West southwest wind 5 to 7 mph becoming southeast after midnight. Chance of precipitation is 30%.
60% chance of thunderstorms Monday Monday... Rain likely, mainly before 4pm, then a slight chance of showers and thunderstorms after 5pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 62. Light south southwest wind becoming west southwest 5 to 10 mph in the morning. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
20% chance of thunderstorms Monday Night Monday Night... A slight chance of showers and thunderstorms before 8pm, then a slight chance of rain between 8pm and 11pm. Mostly cloudy, with a low around 44. South southwest wind 3 to 8 mph. Chance of precipitation is 20%.
Mostly Cloudy on Tuesday Tuesday... Mostly cloudy, with a high near 64. South southwest wind 3 to 8 mph.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 46.
Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 63.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 41.
Mostly Cloudy on Thursday Thursday... Mostly cloudy, with a high near 63.
20% chance of rain Thursday Night Thursday Night... A chance of rain before 11pm. Mostly cloudy, with a low around 44.
20% chance of rain Friday Friday... A chance of rain. Mostly cloudy, with a high near 63.
20% chance of rain Friday Night Friday Night... A chance of rain. Mostly cloudy, with a low around 47.
20% chance of rain Saturday Saturday... A chance of rain. Partly sunny, with a high near 64.
Current Radar Image


Sun Almanac for South Union, Washington
Sunrise: 05:41 AM
Sunset: 8:35 PM
Civil Sunrise:05:05 AM
Civil Sunset: 9:11 PM
Nautical Sunrise: 04:20 AM
Nautical Sunset: 9:56 PM
Astro Sunrise: 03:25 AM
Astro Sunset: 10:51 PM
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