10-Day Weather Forecast for Herndon

Six-hourly outlook through Tuesday 28 July. Updated every three hours via MET Norway.

Day
Night
02:00
Morning
08:00
Afternoon
14:00
Evening
20:00
Saturday
18 Jul
Partly cloudy
28°C (82°F)
0 mm (0 in)
Hourly ›
Sunday
19 Jul
Partly cloudy
25°C (77°F)
0 mm (0 in)
Mostly sunny
25°C (77°F)
0 mm (0 in)
Partly cloudy
30°C (86°F)
0 mm (0 in)
Partly cloudy
28°C (82°F)
0 mm (0 in)
Hourly ›
Monday
20 Jul
Cloudy
22°C (72°F)
0 mm (0 in)
Cloudy
22°C (72°F)
0 mm (0 in)
Partly cloudy
26°C (79°F)
0 mm (0 in)
Partly cloudy
26°C (79°F)
0 mm (0 in)
Hourly ›
Tuesday
21 Jul
Cloudy
23°C (73°F)
0 mm (0 in)
Cloudy
23°C (73°F)
0.1 mm (0 in)
Rain
32°C (90°F)
2.7 mm (0.1 in)
Rain
26°C (79°F)
4.2 mm (0.2 in)
Hourly ›
Wednesday
22 Jul
Partly cloudy
23°C (73°F)
0.1 mm (0 in)
Light rain showers
24°C (75°F)
0.6 mm (0.02 in)
Mostly sunny
30°C (86°F)
0.1 mm (0 in)
Clear skies
27°C (81°F)
0 mm (0 in)
Hourly ›
Thursday
23 Jul
Clear skies
20°C (68°F)
0 mm (0 in)
Clear skies
20°C (68°F)
0 mm (0 in)
Clear skies
28°C (82°F)
0 mm (0 in)
Clear skies
26°C (79°F)
0 mm (0 in)
Hourly ›
Friday
24 Jul
Clear skies
19°C (66°F)
0 mm (0 in)
Cloudy
20°C (68°F)
0 mm (0 in)
Mostly sunny
29°C (84°F)
0 mm (0 in)
Clear skies
26°C (79°F)
0 mm (0 in)
Hourly ›
Saturday
25 Jul
Clear skies
21°C (70°F)
0 mm (0 in)
Clear skies
22°C (72°F)
0 mm (0 in)
Mostly sunny
33°C (91°F)
0 mm (0 in)
Cloudy
30°C (86°F)
0 mm (0 in)
Hourly ›
Sunday
26 Jul
Clear skies
23°C (73°F)
0 mm (0 in)
Clear skies
24°C (75°F)
0.4 mm (0.02 in)
Mostly sunny
34°C (93°F)
0 mm (0 in)
Mostly clear
32°C (90°F)
0 mm (0 in)
Hourly ›
Monday
27 Jul
Clear skies
25°C (77°F)
0 mm (0 in)
Clear skies
25°C (77°F)
0 mm (0 in)
Cloudy
37°C (99°F)
0 mm (0 in)
Partly cloudy
32°C (90°F)
0 mm (0 in)
Hourly ›
Data from MET Norway · Updated every three hours.

What's the weather in Herndon this week?

Today's weather - Saturday 18 Jul

This evening, the weather in Herndon will be partly cloudy, with temperatures around 28°C (82°F), dropping to 25°C (77°F) overnight.

Tomorrow's weather - Sunday 19 Jul

Tomorrow's weather in Herndon will be partly cloudy. Temperatures will range from a warm 25°C (77°F) to a warm 30°C (86°F).

10-Day Weather Forecast

During the next 10 days, temperatures will reach 33°C (91°F) on Saturday before declining again, with average highs of 30°C (86°F) and lows of 23°C (73°F). Compared to July norms, this represents typical weather. There will be plenty of sunshine throughout this time. Expect less rainfall than usual (compared to average July levels), the days are characterized by mostly dry conditions. Precipitation is likely on approximately 1 day (Tue). The wind will be generally calm during this period.

Weather Forecast FAQ for Herndon

When will be the warmest day next week?

The warmest day is expected to be Saturday with a high of 33°C (91°F).

When will be the coldest day?

The coldest day is forecasted for Friday with a low of 19°C (66°F).

Will it rain next week in Herndon?

Yes, rain is expected on 1 day , specifically on Tue.

How much rainfall is expected next week?

A total of 8 mm (0.3 in) of rain is forecasted for the 10-day period.

What will be the temperature range next week?

Temperatures will range from 19°C (66°F) to 33°C (91°F).

More about Herndon

Explore the full Herndon climate overview with monthly averages, or check rainfall data and temperature by month.

Herndon weather by month

Browse monthly averages for Herndon: climate by month with temperature, rainfall and sunshine.

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