Cities / United States / Texas

39°

☀️ Herndon weather

Clear sky. .

Feels like 40° Wind 11 km/h E Humidity 24% Pressure 1012 hPa UV 0 Air Good ☀ 07:09 - 20:17
⚠ Heat Advisory · Moderate

Heat Advisory issued August 22 at 12:25PM CDT until August 23 at 7:00PM CDT by NWS San Angelo TX

⚠ Heat Advisory · Moderate

Heat Advisory issued August 22 at 12:25PM CDT until August 22 at 7:00PM CDT by NWS San Angelo TX

Right now it is 39° in Herndon with clear skies and today's high is 39° with an overnight low of 26°. The sun rises at 07:09 and sets at 20:17, giving 13h 08m of daylight. Over the coming week highs range from 37° to 43°.

Herndon is in Texas, United States, sitting 610 m above sea level. Local time is America/Chicago (UTC−5), and every time on this page is shown in it.

Next 24 hours - temperature

25° 32° 39° 39° 26° 15:00 · 38.4° · 0 mm 16:00 · 38.6° · 0 mm 17:00 · 38.8° · 0 mm 18:00 · 38.5° · 0 mm 19:00 · 36.7° · 0 mm 20:00 · 34.1° · 0 mm 21:00 · 32° · 0 mm 22:00 · 31° · 0 mm 23:00 · 30.4° · 0 mm 00:00 · 30° · 0 mm 01:00 · 29.2° · 0 mm 02:00 · 28.8° · 0 mm 03:00 · 28.3° · 0 mm 04:00 · 27.5° · 0 mm 05:00 · 26.8° · 0 mm 06:00 · 26.4° · 0 mm 07:00 · 25.9° · 0 mm 08:00 · 26.7° · 0 mm 09:00 · 30° · 0 mm 10:00 · 32.6° · 0 mm 11:00 · 34.5° · 0 mm 12:00 · 36.4° · 0 mm 13:00 · 37.9° · 0 mm 14:00 · 38.9° · 0 mm

Precipitation

15:00 · 0 mm 15:00 16:00 · 0 mm 17:00 · 0 mm 18:00 · 0 mm 18:00 19:00 · 0 mm 20:00 · 0 mm 21:00 · 0 mm 21:00 22:00 · 0 mm 23:00 · 0 mm 00:00 · 0 mm 00:00 01:00 · 0 mm 02:00 · 0 mm 03:00 · 0 mm 03:00 04:00 · 0 mm 05:00 · 0 mm 06:00 · 0 mm 06:00 07:00 · 0 mm 08:00 · 0 mm 09:00 · 0 mm 09:00 10:00 · 0 mm 11:00 · 0 mm 12:00 · 0 mm 12:00 13:00 · 0 mm 14:00 · 0 mm

Hour by hour

TIMETEMPFEELSRAINCONDITIONS
15:00 ☀️ 38.4° 37.7° - Clear sky
16:00 ☀️ 38.6° 37.6° - Clear sky
17:00 ☁️ 38.8° 37.3° - Overcast
18:00 ☁️ 38.5° 36.1° - Overcast
19:00 ☁️ 36.7° 34.1° - Overcast
20:00 ⛅ 34.1° 32.4° - Partly cloudy
21:00 ☀️ 32° 29.8° - Clear sky
22:00 ☀️ 31° 28.2° - Clear sky
23:00 ☀️ 30.4° 27.4° - Clear sky
00:00 ☀️ 30° 26.9° - Clear sky
01:00 ☀️ 29.2° 25.7° - Clear sky
02:00 ☀️ 28.8° 25.2° - Clear sky

Next 16 days

Today☀️ 39°26° Sun 23☀️ 39°26° Mon 24☀️ 42°25° Tue 25☀️ 43°28° Wed 26🌦️ 40°27°1.8mm Thu 27🌧️ 38°24°9.3mm Fri 28🌤️ 37°24°0.2mm Sat 29☁️ 38°27°0.3mm Sun 30☁️ 39°28° Mon 31☀️ 39°27° Tue 1☀️ 40°28° Wed 2🌦️ 40°27°1.5mm Thu 3🌦️ 37°24°1.9mm Fri 4🌦️ 36°23°1.1mm Sat 5⛅ 37°26° Sun 6☁️ 38°26°
☀️ TodayAugust 22nd Avg 32° Low 26° at 06:00 High 39° at 17:00 Wind ~20 km/h
Clear Clear Cloudy Clear
00:00 30°
02:00 29°
04:00 28°
06:00 26°
08:00 27°
10:00 33°
12:00 36°
14:00 38°
16:00 39°
18:00 39°
20:00 34°
22:00 31°
☀️ SundayAugust 23rd Avg 32° Low 26° at 07:00 High 39° at 15:00 Wind ~25 km/h
Clear
00:00 30°
02:00 29°
04:00 28°
06:00 26°
08:00 27°
10:00 33°
12:00 36°
14:00 39°
16:00 39°
18:00 38°
20:00 33°
22:00 31°
☀️ MondayAugust 24th Avg 34° Low 25° at 07:00 High 42° at 16:00 Feels 37° Wind ~29 km/h
Clear Clear
00:00 30°
02:00 28°
04:00 27°
06:00 25°
08:00 26°
10:00 32°
12:00 38°
14:00 42°
16:00 42°
18:00 42°
20:00 38°
22:00 34°
☀️ TuesdayAugust 25th Avg 35° Low 28° at 07:00 High 43° at 17:00 Feels 39° Wind ~35 km/h
Clear Clear Cloudy
00:00 32°
02:00 31°
04:00 30°
06:00 29°
08:00 28°
10:00 33°
12:00 38°
14:00 41°
16:00 43°
18:00 42°
20:00 39°
22:00 34°
🌦️ WednesdayAugust 26th Avg 33° Low 27° at 03:00 High 40° at 17:00 1.8 mm rain Feels 37° Wind ~21 km/h
Rain Cloudy Clear
00:00 30°
02:00 29° 0.4mm
04:00 28° 0.1mm
06:00 28°
08:00 28°
10:00 29°
12:00 35°
14:00 38°
16:00 40°
18:00 40°
20:00 36° 0.1mm
22:00 31° 0.4mm
🌧️ ThursdayAugust 27th Avg 30° Low 24° at 23:00 High 38° at 16:00 9.3 mm rain Wind ~18 km/h
Rain
00:00 30°
02:00 27° 0.9mm
04:00 27° 0.4mm
06:00 26°
08:00 27° 0.2mm
10:00 30° 0.2mm
12:00 34° 0.1mm
14:00 37° 0.1mm
16:00 38° 0.1mm
18:00 35° 0.1mm
20:00 30° 2mm
22:00 24° 2mm
🌤️ FridayAugust 28th Avg 30° Low 24° at 06:00 High 37° at 18:00 0.2 mm rain Wind ~21 km/h
Partly Cloudy Clear Partly Cloudy Clear
00:00 25° 0.1mm
02:00 25°
04:00 24°
06:00 24°
08:00 25°
10:00 28°
12:00 32°
14:00 35°
16:00 36°
18:00 37°
20:00 35°
22:00 32°
☁️ SaturdayAugust 29th Avg 33° Low 27° at 06:00 High 38° at 16:00 0.3 mm rain Feels 35° Wind ~29 km/h
Clear Cloudy Rain
00:00 31°
02:00 30°
04:00 28°
06:00 27°
08:00 28°
10:00 31°
12:00 35°
14:00 38°
16:00 38°
18:00 38°
20:00 36° 0.1mm
22:00 33° 0.1mm
☁️ SundayAugust 30th Avg 33° Low 28° at 07:00 High 39° at 16:00 Feels 36° Wind ~28 km/h
Partly Cloudy Cloudy Partly Cloudy Clear
00:00 32°
02:00 31°
04:00 29°
06:00 28°
08:00 28°
10:00 31°
12:00 35°
14:00 38°
16:00 39°
18:00 38°
20:00 36°
22:00 32°
☀️ MondayAugust 31st Avg 33° Low 27° at 06:00 High 39° at 16:00 Feels 37° Wind ~26 km/h
Clear
00:00 32°
02:00 30°
04:00 29°
06:00 27°
08:00 28°
10:00 31°
12:00 35°
14:00 38°
16:00 39°
18:00 39°
20:00 36°
22:00 33°
☀️ TuesdaySeptember 1st Avg 34° Low 28° at 07:00 High 40° at 16:00 Wind ~26 km/h
Clear Cloudy
00:00 31°
02:00 31°
04:00 30°
06:00 28°
08:00 29°
10:00 33°
12:00 36°
14:00 39°
16:00 40°
18:00 38°
20:00 36°
22:00 35°
🌦️ WednesdaySeptember 2nd Avg 33° Low 27° at 23:00 High 40° at 16:00 1.5 mm rain Feels 37° Wind ~38 km/h
Partly Cloudy Rain Partly Cloudy Cloudy Rain
00:00 32°
02:00 31°
04:00 30°
06:00 28° 0.3mm
08:00 29°
10:00 34°
12:00 37°
14:00 39°
16:00 40°
18:00 40°
20:00 36° 0.2mm
22:00 30° 0.2mm
🌦️ ThursdaySeptember 3rd Avg 28° Low 24° at 07:00 High 37° at 15:00 1.9 mm rain Wind ~36 km/h
Cloudy Partly Cloudy Clear Rain
00:00 25°
02:00 25°
04:00 27°
06:00 25°
08:00 24°
10:00 27°
12:00 33°
14:00 37°
16:00 36°
18:00 31° 0.1mm
20:00 26° 0.5mm
22:00 24° 0.5mm
🌦️ FridaySeptember 4th Avg 29° Low 23° at 07:00 High 36° at 17:00 1.1 mm rain Feels 32° Wind ~29 km/h
Rain Cloudy Clear Partly Cloudy
00:00 25° 0.1mm
02:00 26° 0.3mm
04:00 25° 0.3mm
06:00 23°
08:00 24°
10:00 28°
12:00 32°
14:00 34°
16:00 35°
18:00 35°
20:00 34°
22:00 31°
⛅ SaturdaySeptember 5th Avg 31° Low 26° at 07:00 High 37° at 17:00 Feels 32° Wind ~33 km/h
Clear Cloudy Cloudy Partly Cloudy
00:00 29°
02:00 28°
04:00 27°
06:00 26°
08:00 27°
10:00 29°
12:00 31°
14:00 34°
16:00 37°
18:00 37°
20:00 35°
22:00 31°
☁️ SundaySeptember 6th Avg 32° Low 26° at 07:00 High 38° at 16:00 Feels 33° Wind ~34 km/h
Cloudy Partly Cloudy Clear
00:00 30°
02:00 29°
04:00 28°
06:00 26°
08:00 26°
10:00 29°
12:00 33°
14:00 36°
16:00 38°
18:00 37°
20:00 35°
22:00 32°

Sun

☀️ Sunrise 07:09 · Sunset 20:17

13h 08m of daylight · America/Chicago

Air quality

PM2.5 7.9 µg/m³ - Good

No reason to change your plans - open the windows.

Source: Copernicus CAMS, updated hourly.

Nearby

Tesco · 3.1 km Grimes · 4.2 km Eskota · 5.7 km Toland · 7 km Trent · 8.2 km Palava · 15.7 km

Tools for Herndon

☔ Will it rain today? 🌅 Sunrise & sunset 🫁 Air quality 📼 Weather on this day

Common questions about Herndon weather

Will it rain in Herndon today?

No rain is in the forecast for Herndon today.

What is the temperature in Herndon right now?

It is 39° in Herndon right now. Today runs between a low of 26° and a high of 39°.

What time is sunrise and sunset in Herndon?

The sun rises at 07:09 and sets at 20:17 local time in Herndon today, giving 13h 08m of daylight.

What is the air quality in Herndon?

PM2.5 in Herndon is currently 7.9 µg/m³, which counts as Good on the European air-quality index. No reason to change your plans - open the windows.

How accurate is the Herndon forecast, and how far ahead does it go?

This page shows 16 days ahead, refreshed every hour. It blends ECMWF, NOAA GFS and whichever national high-resolution model covers Herndon best. The first three days are the dependable part - day one is usually within a degree or two - and accuracy falls off steadily after day five, so read the far end as a trend rather than a plan. We publish our measured error against real station observations on the accuracy page.

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