Middletown, Maryland Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Middletown weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast27%—100°74°—
- SundayJul 5Heavy Rain47%0.50″94°75°-6°
- MondayJul 6Thunderstorm80%0.06″80°69°-14°
- TuesdayJul 7Heavy Showers80%3.2″86°65°+6°
- WednesdayJul 8Light Drizzle33%0.03″78°65°-8°
- ThursdayJul 9Overcast12%—91°64°+13°
- FridayJul 10Overcast40%—86°67°-5°
AQI 85 (Moderate), driven by Ozone. AQI up 33 in the last 6 hours — air quality is degrading. Ozone at AQI 80 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 80 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 80
- UV peak
- 2.1 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 80
PM × Wind × Precip
PM2.5 at 8.1 µg/m³, PM10 at 9.0 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.90
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- background
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).








































If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:02 PM
- Moonset
- 10:14 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Middletown at a glance
- Today vs. normal: 28°F above the seasonal normal for this latitude
- Last frost: April 13 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 21769
16-Day Forecast — Middletown
- Sat100°74°27%
- Sun94°75°47%
- Mon80°69°80%
- Tue86°65°80%
- Wed78°65°33%
- Thu91°64°12%
- Fri86°67°40%
- Sat88°67°30%
- Sun78°63°24%
- Mon80°65°17%
- Tue84°60°17%
- Wed86°62°40%
- Thu92°67°42%
- Fri84°68°38%
- Sat92°69°34%
- Sun89°69°44%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 4, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
SPC Convective Outlook
Storm Prediction Center — Middletown
SPC has placed Middletown in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWSLGTSlight Risk
- DAY 3TSTMGeneral Thunderstorms
Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
Microseason · July 1–5
Cicadas claim the afternoon
Annual cicada buzz begins, peaking in the heat of the day.
Day 185 of 365 · Wedge 37 of 72
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | — | — |
| April | lettuce, peas, spinach, radishes | — |
| May | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
In Middletown, July runs warmest near 79°F and January coldest around 35°F, while September is the wettest month (5.8 inches) and January the driest (2.6 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 35° | 2.6″ | 6 |
| February | 38° | 3.0″ | 5 |
| March | 46° | 3.7″ | 9 |
| April | 57° | 3.5″ | 7 |
| May | 66° | 4.0″ | 7 |
| June | 74° | 4.3″ | 7 |
| July | 79° | 3.9″ | 7 |
| August | 77° | 2.9″ | 5 |
| September | 70° | 5.8″ | 7 |
| October | 58° | 3.3″ | 4 |
| November | 47° | 2.7″ | 5 |
| December | 39° | 4.0″ | 7 |
Regional context
Middletown's climate, from NOAA NCEI 1991-2020 station normals, pairs 35°F Januarys with 79°F Julys — a 44°F swing. About 43.5 inches of precipitation falls over roughly 76 days a year.
Rainfall in Middletown stays even across the calendar: September tops out at 5.8 inches over 7.3 rainy days, and January still logs 2.6 inches across 5.8 — a narrow range for Middletown. That even rhythm groups Middletown with places like Braddock Heights, MD, Myersville, MD and Jefferson, MD.
The cool-season window in Middletown starts at mid-April, when nights stop freezing — think peas, lettuce, spinach, and radishes. Warm-soil crops in Middletown wait about two weeks past Middletown's last frost, once the soil warms. It shuts near mid-November, when freezes return to Middletown and tender plants need cover. Within Middletown, cold-air pooling chills low spots by 5-10°F, shifting Middletown's local frost dates.
Similar climates: Braddock Heights, MD, Myersville, MD, Jefferson, MD, Burkittsville, MD, Frederick, MD.
Frequently asked
- When does it freeze in Middletown?
- Frost typically leaves Middletown by mid-April and returns to Middletown near mid-November.
- What is the rainy season in Middletown?
- September is the wettest month in Middletown, about 5.8 inches on average; the year totals roughly 44 inches.
- What is the warmest month in Middletown?
- The warmest stretch in Middletown comes in July, around 79°F on average.
- What is the coldest month in Middletown?
- On average January is the chilliest month in Middletown, about 35°F.
- When can I start a vegetable garden in Middletown?
- Frost-hardy sowings begin at mid-April in Middletown; warm-season starts follow two weeks on.
- How many rainy days does Middletown get?
- Middletown averages about 76 days with measurable rain or snow each year.
- What hardiness zone is Middletown?
- Middletown's hardiness zone tracks its winter low; with January near 35°F, check the USDA ZIP map for the exact zone.
- What is the 10-day forecast for Middletown?
- Middletown's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
- Will it rain this week in Middletown?
- See this week's day-by-day rain chances for Middletown in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Middletown?
- Current conditions for Middletown and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Middletown forecast updated?
- The Middletown forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Middletown?
- Today's sunrise and sunset times for Middletown are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
- How accurate is the weather forecast for Middletown?
- The next few days in Middletown's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Middletown's warm-summer humid continental climate in Maryland pairs 35°F Januarys with 79°F Julys, 44°F apart across the seasons.
Across the year, Middletown collects about 44 inches of precipitation over roughly 76 days with measurable rain or snow.
The 44°F gap between Middletown's summer and winter, at 39.4°N, shapes Middletown's frost calendar.
ZIP codes in Middletown
- 21769