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Air Quality Alert AIR QUALITY ALERT - Thurmont

National Radar Regional Radar
Radar/Satellite images courtesy of National Weather Service.
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METRIC | IMPERIAL
Updated: 17-Jul-2026 @ 3:35am   (0 sec ago)
Temperature Current Conditions Forecast / Storm Prediction
Currently Outside: Warmer 0.4°F than last hour.

71.6°F

Feels like:  75.5°F
---
High Today
75.2°F
12:00 AM 		Low Today
71.2°F
2:37 AM
Yest High
92.0°F
3:50 PM 		Yest Low
75.2°F
11:59 PM
Night time, Dry Night time, Dry

Wind from NNW Wind:  NNW
0.2
Gusting to:
 1.0 mph
Current Rain Rain:
0.00 in
Chandler Burning Index: LOW Current CBI
Fire Danger:
6.7 of 100
Overnight

Overnight: Smoke
Smoke
Friday

Friday: Smoke
Smoke
Friday
Night
Friday Night: Smoke
Smoke
Lo 70°F Hi 88°F Lo 70°F
SPC Activity Map
Dew Point Liquid Precipitation Wind Speed Sun/Moon
Current: Increased 0.3°F since last hour. 59.2°F
Last Hour: Increased 0.3°F since last hour. +0.3°F
High 12:14 AM: 60.7°F
Low 12:08 AM: 57.7°F
Record High: 83.5°F on
16-Aug-2010
Record Low: -14.3°F on
20-Feb-2015
Wetbulb: 64.2°F
Today: 0.00 in
Yesterday: 0.00 in
Last 7 Days: 0.70 in
Jul Rain: 3.60 in
Jul to Date
  Avg:10 		1.84 in
Jul to Date
  Diff from Avg:10 		Over 1.76 in for the month 1.76 in
Jul Avg: 2.87 in
Diff from Avg: Over 0.73 in for the month 0.73 in
Season:1 21.600 in
YTD
  Avg:11 		20.67 in
YTD
  Diff from Avg:11 		Over 0.93 in for the year 0.93 in
Last Rain
Time/Date: 		11-Jul-2026
at 8:19 PM
67 rain days in 2026
7 days in July
5 days since last rain
Current: NNW  0.2 mph
1Hr Average: 4.2 mph
Wind Run: 12.96 miles
Wind Gust
Current: 1.0 mph
Today: 9.2 mph 1:52 AM
Month: 32.0 mph 4-Jul
Year: 44.0 mph 16-Mar
Record Gust: 44.0 mph
16-Mar-2026
Sunlight:
14 h 40 m 40 s
of Sunlight Yesterday
14 h 39 m 16 s
of Sunlight Today Which is
1 min 24 sec shorter than
yesterday
14 h 37 m 51 s
of Sunlight Tomorrow
 (Noon ?>) graph (Midnight
 Legend

Waxing Crescent
Waxing Crescent, 2 days, 21 hours, 55 minutes in cycle
10%
Illuminated
Humidity Barometer
Current: No Change 65%
Last Hour: No Change 0%
High 2:37 AM: 66%
Low 12:00 AM: 57%
Record High: 100%
12-Apr-2008
Record Low: 12%
11-Mar-2009
Current: Rising 0.8 inHg/hr 1016.1 inHg
Last Hour: Steady
High 3:34 AM: 1016.1
Low 12:00 AM: 1014.9
Record High: 1079.1 inHg
1-Mar-2015
Record Low: 964.5 inHg
30-Oct-2012
Cooling Degree Days Coming Soon Heat Index Air
Today: 1.3
Jul: 217.2
2026 to Date: 490.2
Heating Degree Days
2026 to Date: 3011.7
Current: 75.5°F
High 12:00am: 75.2°F
Yesterday: 110.3°F
Record: 114.8°F
21-Jul-2019
Quality
Index6:
54

Moderate
Density:
1.19 kg/m3
UV Summary/Forecast Solar Summary
High Yest:   6.5 @ 12:06 PM
Jul-17

9.2 		Jul-18

9.6 		Jul-19

8.2
High Yest:   863.0 @ 12:44 PM
Sun Hours Today:
00:00
   This Month: 82:37 Hrs
Rise: 5:39 am  Set: 8:25 pm
Almanac Irrigation Index5 Station All Time Records Cloud Level
Currently: Night
YTD Avg Temp: 51.6°F
Sunrise: 5:39 am
Sunset: 8:25 pm
Moonrise: 9:22 am
Moonset: 10:01 pm
Full Moon: 29-Jul-2026
New Moon: 17:37 UTC
12-Aug-2026
Updated at Midnight
Current ET: 0.08 in
7-Days Rain: 0.70 in
7-Days ET: 1.31 in
7-Day: 0.611 in water in deficit of what evaporated in last 7 days. 0.611 in
July: 3.6 in water in excess of what evaporated this month. 3.6 in
HIGHS: LOWS:
97.3°F
3-Jul-2026 		-2.7°F
7-Jan-2014
Daytime Records
  91.6°F°F
03-Jul-2026 		  3.9°F°F
07-Jan-2014
Nitetime Records
  87.3°F°F
20-Jul-2020 		  3.9°F°F
20-Feb-2015
ICN:1 | S3C2:0 | Ajax 3.xx
ISS:Ok | CON:4.7 | RCP:98%
1 Rain season: Jan 1st to Dec 31st.   5 Estimated amount of water needed to replace the water used by plants and evaporation from the past week. (Negative numbers mean amount of water needed, positive numbers mean excess water is present).   6 Air Quality Index is provided by Minnesota Polution Control Agency and is updated hourly between the hours of 6AM and Midnight.   10 Historical average only to day 17 of just the month of July for this station since 2009.   11 Historical average rain this season to day 17 of July for this station since 2009.
 NWS Weather Forecast  -   Outlook Overnight & Friday
Overnight

Overnight: Smoke
Smoke

Lo 70°F 		NWS forecast: Smoke. Partly cloudy, with a low around 70. North wind around 5 mph.
WXSIM forecast: Partly cloudy. Low 71°. Wind northwest around 8 mph, gusting to 18 mph, in the evening, becoming 4 mph after midnight.
 Local station forecast: Increasing clouds with little temp change. 		Friday

Friday: Smoke
Smoke

Hi 88°F 		NWS forecast: Smoke. Mostly sunny, with a high near 88. East wind 0 to 3 mph.
WXSIM forecast: Partly to mostly cloudy in the morning, becoming partly to mostly sunny in the afternoon. Hot. High 89°. UV index up to 8. Wind northwest around 3 mph.
 NWS Short Term Weather Forecast
Friday
Night
Friday Night: Smoke
Smoke
Saturday

Saturday: Smoke
Smoke
Saturday
Night
Saturday Night: Showers And Thunderstorms
Showers And T-Storms
Sunday

Sunday: Sunny
Sunny
Sunday
Night
Sunday Night: Mostly Clear
Mostly Clear
Monday

Monday: Sunny
Sunny
Monday
Night
Monday Night: Mostly Cloudy
Mostly Cloudy
Lo 70°F Hi 88°F Lo 70°F Hi 84°F Lo 62°F Hi 84°F Lo 68°F
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