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Current Conditions and
Forecast from NWS/IWIN

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NowCast ZoneCast Warnings/Advisories Hourly Track Special Radar
San Marcos, Texas (78666)  Lat: 29.88N, Lon: 97.94W
Wx Zone: TXZ191
Current Conditions
Updated:
Sun & Moon Information:
Temp: N/A
Humidity: N/A
Wind Speed: N/A
Barometer: N/A
Dewpoint: N/A
Heat Index: N/A
Wind Chill: N/A
Civil Twilight: 6:23 AM CDT Moon Phase:
Waning Crescent Moon
Waning Crescent Moon
Sunrise: 6:48 AM CDT
Sunset: 8:07 PM CDT
Civil Twilight: 8:32 PM CDT
Forecast for San Marcos, Texas:
Dated: 904 PM CDT WED MAY 01 2024    Expires: 1015 AM CDT MON DEC 02 2024
NOTE: The Forecast Data has Expired
7 Day View   
TONIGHTTHURSDAYTHURSDAY
NIGHT
FRIDAYFRIDAY
NIGHT
Thunder stormsChance of T-StormChance of T-StormChance of T-StormChance of T-Storm
Thunder
Storms
Chance
Of
T-Storm
Chance
Of
T-Storm
Chance
Of
T-Storm
Chance
Of
T-Storm
Lo: 69°F Hi: 81°F
Lo: 70°F Hi: 85°F
Lo: 69°F
Pop: 80% Pop: 40%
ZoneCast:
Dated: 904 PM CDT WED MAY 01 2024    Expires: 1015 AM CDT MON DEC 02 2024
NOTE: The Forecast Data has Expired
FLOOD WATCH NOW IN EFFECT FROM 3 PM CDT THIS AFTERNOON THROUGH THURSDAY MORNING ...SEVERE THUNDERSTORM WATCH 173 IN EFFECT UNTIL 2 AM CDT THURSDAY...

Includes the Counties: Hays, Including The City Of San Marcos
Tonight...Showers and thunderstorms likely this evening, then showers with thunderstorms likely after midnight. Some thunderstorms May be severe with damaging winds and large hail, then some thunderstorms May be severe with damaging winds, large hail, and heavy rainfall. Locally heavy rainfall possible this evening. Lows in the upper 60s. Southeast winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 80 percent.
Thursday...Mostly cloudy. A chance of showers and thunderstorms, mainly in the morning. Highs in the lower 80s. Southeast winds 10 to 15 mph. Chance of rain 40 percent.
Thursday Night...Mostly cloudy. A slight chance of showers and thunderstorms in the evening. Patchy fog after midnight. Lows around 70. Southeast winds 5 to 10 mph.
Friday...Patchy fog in the morning. Mostly cloudy in the morning, then partly cloudy with a slight chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Southeast winds 5 to 10 mph.
Friday Night...Mostly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the upper 60s. Southeast winds 10 to 15 mph.
Saturday...Mostly cloudy in the morning, then partly cloudy with a slight chance of showers and thunderstorms in the afternoon. Highs in the mid 80s.
Saturday Night...Mostly cloudy. A chance of showers and thunderstorms, mainly in the evening. Lows in the upper 60s. Chance of rain 30 percent.
Sunday...Mostly cloudy. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 40 percent.
Sunday Night...Mostly cloudy. A slight chance of showers and thunderstorms in the evening. Lows around 70.
Monday...Mostly cloudy. Highs in the mid 80s. Lows in the lower 70s.
Monday Night...Mostly cloudy. Highs in the mid 80s. Lows in the lower 70s.
Tuesday...Partly cloudy. Highs in the lower 90s. Lows around 70.
Wednesday...Partly cloudy. Highs in the lower 90s. Lows around 70.

US Forecasts are Public Domain and derived from the
National Weather Service - (IWIN) and the National Oceanic Atmospheric Administration (NOAA)
Canadian forecasts are obtained from and are copyright of Environment Canada.

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