Start here · Heavy-rain planning for Katy roads and regional commutesHeavy rain can disrupt a Katy trip even when the destination remains dry. Drivers leaving Katy may move from neighborhood streets to frontage roads, tollways, or major regional routes, and each part of the trip can…
Read full guide→Weather guidance for your areaHelpful weather guides for ZIP 77494
See all guides Choose a guide to learn how weather can affect everyday plans in Katy, Texas.
Weather status
No active NWS alerts found for Katy, Texas 77494
Conditions can change quickly. Keep Wireless Emergency Alerts enabled and continue to monitor official information.
Official NOAA / NWSWSR-88D DopplerUpdates every 5 minutes
Live Doppler radar
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What’s next
Hourly forecast
Check the latest hourly conditions, seven-day outlook, rain timing, wind, sunrise and sunset for Katy, Texas 77494. Forecasts and alerts update from NOAA and the National Weather Service.
83°Mostly Clear0% rain81°Mostly Clear0% rain80°Mostly Clear0% rain79°Mostly Clear0% rain
78°Patchy Fog0% rain78°Patchy Fog0% rain
77°Patchy Fog0% rain77°Patchy Fog1% rainNext 24 hours
Rain Timeline
No meaningful precipitation is expected in the official hourly forecast.
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Official NWS outlook
7-Day Forecast
Today
99°78°
Patchy Fog then Mostly Sunny
- Precipitation
- 2%
- Wind
- SW 0 to 5 mph
- Sunrise
- 6:54 AM
- Sunset
- 8:03 PM
Wed
99°77°
Mostly Sunny
- Precipitation
- 0%
- Wind
- SW 5 to 10 mph
- Sunrise
- 6:54 AM
- Sunset
- 8:02 PM
Thu
100°79°
Sunny
- Precipitation
- 0%
- Wind
- S 5 mph
- Sunrise
- 6:55 AM
- Sunset
- 8:01 PM
Fri
100°79°
Sunny
- Precipitation
- 1%
- Wind
- SW 5 mph
- Sunrise
- 6:55 AM
- Sunset
- 8:00 PM
Sat
100°78°
Sunny
- Precipitation
- 3%
- Wind
- SW 5 mph
- Sunrise
- 6:56 AM
- Sunset
- 7:58 PM
Sun
99°77°
Sunny
- Precipitation
- 5%
- Wind
- S 5 mph
- Sunrise
- 6:57 AM
- Sunset
- 7:57 PM
Mon
99°—
Sunny
- Precipitation
- 1%
- Wind
- S 5 to 10 mph
- Sunrise
- 6:57 AM
- Sunset
- 7:56 PM
Forecasts, icons, precipitation, wind, and alerts are from the National Weather Service. Sunrise and sunset are calculated locally for the selected coordinates.
Weather for a healthier day
Healthy Weather
Real Feel87°F
Good conditions for walking
Conditions look reasonable, but stay alert for quick weather changes.
WindS7 mph
Best walk timeBetter weather window: 12 AM–2 AM
Walking: 0% average rain chance, near 82°F, with winds near 5 mph.
Official EPA AirNowLocal air qualityKaty, Texas 77494View AQI +
More weather details
Wind gustsNot reported
Rain now0%next hour
Humidity89%current
UV indexCheckingEPA forecast
Wind impact: Light wind with little expected outdoor impact.
“Better weather window” is planning guidance based on official NWS data—not a promise of safe conditions. Review active alerts and radar before leaving.
Storm & DetailsGusts, pressure, visibility and official risk outlooksView details +
Wind gustNot reported
Pressure30.06 in
Visibility10.0 mi
Peak rain chance2%
Dew point77°F
Active alertsNone
Official risk outlooks
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Official tropical weather
Hurricane center
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Hurricane center
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