Harris County Weather Forecast
Harris County weather: 78°F, clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Will it rain in Harris County?
No - rain is unlikely in Harris County today.
Rain is very unlikely today - plans do not need a backup.
Over the next 7 days, about 0,0 in of precipitation is forecast.
The next 7 days look unusually dry - roughly 7% of a normal August week (0,0 in against 0,5 in).
16-day forecast for Harris County
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Fri, Aug 21 | ☁️ Overcast | 99° / 77° | 2% | 10 mph | 8 |
| Sat, Aug 22 | ☁️ Overcast | 100° / 78° | 7% · 0,0 in | 11 mph | 8 |
| Sun, Aug 23 | ☁️ Overcast | 103° / 80° | 8% · 0,0 in | 14 mph | 8 |
| Mon, Aug 24 | ☁️ Overcast | 103° / 80° | 1% | 15 mph | 8 |
| Tue, Aug 25 | ☁️ Overcast | 103° / 81° | 1% | 15 mph | 8 |
| Wed, Aug 26 | ☁️ Overcast | 102° / 80° | 2% | 15 mph | 8 |
| Thu, Aug 27 | ☁️ Overcast | 102° / 80° | 8% | 13 mph | 8 |
| Fri, Aug 28 | ☀️ Clear sky | 101° / 81° | 9% | 15 mph | 8 |
| Sat, Aug 29 | ☁️ Overcast | 101° / 80° | 11% | 19 mph | 8 |
| Sun, Aug 30 | ☁️ Overcast | 103° / 81° | 9% | 15 mph | 9 |
| Mon, Aug 31 | 🌦️ Light drizzle | 100° / 81° | 12% · 0,0 in | 17 mph | 9 |
| Tue, Sep 1 | ☀️ Clear sky | 101° / 81° | 10% | 15 mph | 8 |
| Wed, Sep 2 | ☀️ Clear sky | 101° / 81° | 10% | 12 mph | 8 |
| Thu, Sep 3 | ☁️ Overcast | 99° / 81° | 13% | 12 mph | 7 |
| Fri, Sep 4 | ☀️ Clear sky | 101° / 81° | 10% | 13 mph | 8 |
| Sat, Sep 5 | ☀️ Clear sky | -- / -- | 13% | -- | — |
What this means for Harris County
Today is slightly warmer than average for August. The forecast high of 99°F is 4.5°F above the 95°F typical for this month.
Rain is very unlikely today - plans do not need a backup.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 66°F.
What to pack, what to skip
- Lightweight, light-coloured clothing and a refillable water bottle
- Sunglasses, a brimmed hat and SPF 30+
- Avoid long hikes after mid-morning; start at dawn or leave it for a cooler day.
- If your dates are flexible, avoid January, May and July - historically the least comfortable months here.
See the Harris County forecast by time range
Harris County weather - more answers
Explore Harris County
Every topic we hold for this place, and the same topic for the places around it.
Weather for related places
Frequently asked questions
Where is Harris County?
Harris County is a county in Texas. Its coordinates are 29.7604, -95.3698. It lies in North America.
What is the weather like in Harris County right now?
It is currently 78°F (26°C) with clear. Humidity is 86% and wind is 4 mph.
When is the best time to visit Harris County?
February, March, August, September, October and November offer the most comfortable conditions in Harris County, which has a temperate climate. January, May and July are usually the hardest months for outdoor plans.
What time zone is Harris County in?
Harris County observes America/Chicago (UTC-05:00). The local time is 9:30 AM.
How many people live in Harris County?
Harris County has a population of approximately 4.8 million.
What is the nearest airport to Harris County?
The closest airports are George Bush Intercontinental Airport (IAH), 16 mi away, Austin-Bergstrom International Airport (AUS), 141 mi away and Dallas/Fort Worth International Airport (DFW), 238 mi away.
What are the top things to do in Harris County?
Popular options include Enchanted Rock State Natural Area.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (us-counties) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated August 21, 2026 at 9:30 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
