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Loudoun County, Virginia

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Loudoun Weather

Loudoun County Weather Outlook for Friday, July 3, 2026

⚠️🔥 Extreme Heat Warning Today and Saturday
⚠️ Severe Storms Possible!

🇺🇸🎆 Happy Fourth of July weekend! An extreme heat warning is in effect today and tomorrow, with highs near the century mark and heat index up to 110°F. Stay cool out there.

⛈️ Storm Chances This Weekend
A strong-to-severe storm is possible today. That risk increases on Saturday and Sunday, with wind the main threat.

🌧️ Locally Heavy Rain
Storms could bring heavy downpours, frequent lightning, and a risk of flash flooding. Two to three inches of rain are possible over the next week, per the Weather Prediction Center. The threat of locally heavy rain increases on Sunday and Monday

📉 Some Cooling by midweek, back into the mid to upper 80s, closer to seasonable.

🧊 Stay Cool and Stay Safe
Have a plan to stay cool and know where to shelter if storms roll through. My updated Northern Virginia July 4th page is at https://nova4th.com with adjusted schedules and cancellations due to the heat.

The forecast:
Today: Hi 100 ☀️ Lo 77 🌧️20% – 🌡️ Sunny and dangerously hot, an isolated late night storm possible

🇺🇸 Independence Day: Hi 99 🌦️30% Lo 72 🌧️60% – 🌡️ Hot with increasing clouds and an afternoon storm chance, becoming likely overnight with heavy rain possible and severe storms.

Sunday: Hi 92 ⛈️80% Lo 69 🌧️80% – Showers and storms likely, some heavy, into the evening

Monday: Hi 87 🌧️80% Lo 68 🌧️80% – Rounds of showers and a few storms likely day and night

Tuesday: Hi 85 🌦️60% Lo 67 🌧️60% – Partly sunny with showers and a few storms likely

Wednesday: Hi 86 🌦️20% Lo 67 🌧️20% – Mostly sunny, slight chance of a stray shower or storm

Thursday: Hi 89 🌦️20% Lo 67 – Mostly sunny, slight chance of an afternoon shower or storm

#loudoun #loudouncountyva #vawx #loudounweather #loudounva #virginiaweather
Please support Tree of Life Ministries, an important organization to me! https://www.tolministries.org
Facebook: https://facebook.com/loudounwx
Twitter: https://twitter.com/loudounwx
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On the Web @ https://loudounweather.com
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Loudoun Weather

Loudoun County Weather Outlook for Thursday, July 2, 2026

⚠️🌡️🔥🥵 Extreme Heat Warning today and tomorrow!
⚠️ Extreme Heat Watch for the Fourth!

🥵 The Heat Is Here
Overnight lows were uncomfortable, with heat index still in the mid to upper 80s. Today brings dangerous heat index temps topping 110 at times. Take it easy outside, check on neighbors, leave water for delivery drivers, and provide shade and water to outdoor animals.

🌩️ Watching for a Stray Storm
The heat continues tomorrow with a slight chance of a shower or storm, and today isn't out of the question either. It depends on whether we break the cap over us. If a storm fires, it could turn severe with strong winds and hail.

⚠️ Extreme Heat Watch and Severe Risk for The Fourth!
Saturday brings an extreme heat watch and a slight risk for severe weather, with damaging wind the main concern. Plan for shelter if needed in severe weather!

🌦️ Relief on the Way
Daily shower and storm chances continue through midweek as temperatures ease, dropping into the low 80s.

The forecast:

Today: Hi 101 ☀️ Lo 76 🌙 – 🌡️ Sunny and dangerously hot with heat index well into the triple digits

Friday: Hi 101 🌦️20% Lo 75 ☁️ – 🌡️ Sunny and hot with a slight chance of a strong afternoon storm

Saturday: Hi 98 🌦️50% Lo 72 🌧️40% – 🌡️ Mostly sunny and hot with a better chance of afternoon and evening storms, some strong

Sunday: Hi 94 🌦️70% Lo 70 🌧️60% – Showers and storms likely in the afternoon and evening as temperatures ease

Monday: Hi 88 🌦️70% Lo 68 🌧️60% – Showers and storms likely in the afternoon and evening

Tuesday: Hi 86 🌦️30% Lo 67 🌧️30% – A chance of showers and storms

Wednesday: Hi 81 🌦️20% Lo 64 🌙 – A slight chance of showers and storms

#loudoun #loudouncountyva #vawx #loudounweather #loudounva #virginiaweather

Please support Tree of Life Ministries, an important organization to me! https://www.tolministries.org
Facebook: https://facebook.com/loudounwx
Twitter: https://twitter.com/loudounwx
Instagram: https://www.instagram.com/loudounweather/
On the Web @ https://loudounweather.com
TikTok: https://www.tiktok.com/@loudounweather
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Loudoun Weather

Loudoun County Weather Outlook for Tuesday, June 30, 2026

⚠️ 🔥 🥵 Heat Advisory Tomorrow and Extreme Heat Watch Thu & Fri

🥵 Hot and Humid Today
Climbing toward 90 today, but with all the humidity, it'll feel close to 100. Thick, sticky air out there.

🌡️ Heat Advisory Tomorrow
Wednesday gets worse, with a heat advisory from around 11am into the evening. Heat index values climb to 104 to 105. Brutally hot.

🥵 Extreme Heat Watch Thursday and Friday
An extreme heat watch kicks in Thursday and Friday with heat index values approaching 110. Friday also brings a chance of a storm, possibly severe, with wind the main threat.

🎆 Storm Chances Around the Holiday
Another chance of storms on the Fourth of July, with better odds overnight Saturday into Sunday and Monday, up around fifty percent. These could be strong to severe, with wind and lightning the main concerns.
⛅ Heat Sticks Around, But Eases Some

🔭 Extended Outlook
The heat hangs on into the extended forecast, just not as extreme. A wetter pattern moving in may help cool things down a touch, though it'll stay humid.

The forecast:
Today: Hi 90 ☀️ Lo 70 – Sunny and warm, clear overnight

Wednesday: Hi 98 🌡️20% Lo 74 – Mostly sunny and hot with a slight chance of afternoon storms

Thursday: Hi 101 🌡️ Lo 76 – Sunny and hot

Friday: Hi 100 🌡️30% Lo 73 🌧️30% – Sunny and hot with afternoon storm chances lingering into the evening

Saturday: Hi 98 🌡️40% Lo 71 🌧️40% – Sunny and hot with afternoon storm chances continuing overnight

Sunday: Hi 93 🌦️50% Lo 70 🌧️40% – Partly sunny with a good chance of storms continuing overnight

Monday: Hi 90 🌦️40% Lo 69 🌧️40% – Partly sunny with a chance of storms continuing overnight

#loudoun #loudouncountyva #vawx #loudounweather #loudounva #virginiaweather
Please support Tree of Life Ministries, an important organization to me! https://www.tolministries.org

Facebook: https://facebook.com/loudounwx
Twitter: https://twitter.com/loudounwx
Instagram: https://www.instagram.com/loudounweather/
On the Web @ https://loudounweather.com
TikTok: https://www.tiktok.com/@loudounweather
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Loudoun Weather

Loudoun County Weather Outlook for Monday, June 29, 2026

⚠️🥵🔥 Extreme Heat Expected this Week!

🌥️ Humid Start to the Week
Kicking off the week kinda humid today, not too hot thanks to some clouds, with an isolated shower or thunderstorm possible through midday. Today's the coolest day we'll see all week.

🔥 Heat Cranking Up Fast
We climb back up tomorrow, and with the humidity it'll feel hotter than the thermometer shows. By Wednesday we're near the hottest readings of the year, with heat index values possibly hitting 105 to 110. Thursday looks just as brutal. Excessive heat warnings look likely both days.

⛈️ Relief Possibly for the Fourth
Heading into Friday, the heat ridge weakens a bit, which could spark some storms. That becomes more likely by the Fourth and into the weekend, with showers and storms returning, some possibly severe.

📅 A Notable Anniversary
Today marks the anniversary of the 2012 derecho. We're in that same derecho season window, and while nothing points to a repeat, it's a pattern that could support one.

🌧️ Drought Still a Concern
Temps ease up a touch next week, but the rain we're expecting won't be enough to make a real dent in our ongoing drought.

The forecast:

Today: Hi 86 🌦️20% Lo 66 – Mostly sunny with isolated thunderstorms midday, clearing overnight

Tuesday: Hi 89 ☀️ Lo 70 – Patchy morning fog then sunny

Wednesday: Hi 99 🌡️☀️ Lo 74 – Sunny and hot

Thursday: Hi 102 🌡️☀️ Lo 75 – Sunny and hot

Friday: Hi 102 🌡️🌦️20% Lo 75 🌧️20% – Sunny and hot with a slight chance of afternoon storms continuing into the evening

Saturday: Hi 99 🥵🌦️40% Lo 72 🌧️30% – Mostly sunny and hot with a chance of showers and storms

Sunday: Hi 95 🥵🌦️40% Lo 70 🌧️ Mostly sunny with a chance of showers and storms

#loudoun #loudouncountyva #vawx #loudounweather #loudounva #virginiaweather

Please support Tree of Life Ministries, an important organization to me! https://www.tolministries.org

Facebook: https://facebook.com/loudounwx
Twitter: https://twitter.com/loudounwx
Instagram: https://www.instagram.com/loudounweather/
On the Web @ https://loudounweather.com
TikTok: https://www.tiktok.com/@loudounweather
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Loudoun Weather

Loudoun County Weather Outlook for Sunday, June 28, 2026

☁️ Unsettled Sunday, with a chance of showers and storms
Clouds with scattered showers and a few storms are around today, with locally heavy rain possible in spots. Heading to fireworks tonight, like in Hillsboro? Watch the radar early evening. Find a show near you at https://nova4th.com

🌫️ Best Day of the Week Tomorrow
Patchy fog early, then clearing skies for a hot, humid afternoon. Honestly the nicest day coming up.

🥵 Heat Cranks Up Fast
Tuesday steps up the heat, and Wednesday through the Fourth of July brings a serious, dangerous heat stretch. Highs will push past 100, and with humidity factored in, Thursday and Friday will likely feel near 110 or higher. Expect heat advisories and possible extreme heat warnings. Limit afternoon sun, stay hydrated, and check on anyone without good shade or AC.

⛈️ Rough Pattern Late Week
A northwest flow (upper-level wind flow) sets up late week, a setup that can lend itself to gusty thunderstorms. Worth watching as we go through the week.

The forecast:

Today: Hi 80 🌦️50% Lo 66 🌙 – Chance of showers and thunderstorms, patchy fog possible in the morning and overnight

Monday: Hi 85 ⛅ Lo 66 🌙 – Dense fog early morning, otherwise partly sunny

Tuesday: Hi 90 ☀️ Lo 70 🌙 – Patchy fog before 8am, otherwise sunny

Wednesday: Hi 98 ☀️ Lo 74 🌙 🥵 Sunny and hot

Thursday: Hi 101 ☀️ Lo 76 🌙 🌡️ Sunny and hot

Friday: Hi 102 🌤️30% Lo 74 🌧️30% 🌡️ Sunny and hot with a chance of showers and thunderstorms, showers and storms possible overnight

Independence Day: Hi 97 🌤️30% Lo 71 🌧️ 🌡️ Mostly sunny and hot with a chance of showers and thunderstorms

#loudoun #loudouncountyva #vawx #loudounweather #loudounva #virginiaweather

Please support Tree of Life Ministries, an important organization to me! https://www.tolministries.org

Facebook: https://facebook.com/loudounwx
Twitter: https://twitter.com/loudounwx
Instagram: https://www.instagram.com/loudounweather/
On the Web @ https://loudounweather.com
TikTok: https://www.tiktok.com/@loudounweather
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