Plain City, Utah Weather
Monsoon storms drench the south. Day 14 of summer. Read this microseason across nine climate regions →
Plain City weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Mostly Clear——95°58°—
- SundayJul 5Overcast——99°66°+4°
- MondayJul 6Overcast——99°71°0°
- TuesdayJul 7Overcast——99°71°0°
- WednesdayJul 8Overcast——100°68°+1°
- ThursdayJul 9Mostly Clear——96°64°-4°
- FridayJul 10Clear——100°66°+4°
AQI 35 (Good), driven by PM2.5. AQI down 13 over the last 6 hours (gradual decline). PM2.5 at 6.6 µg/m³ (AQI 37) with a 0.85 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
PM × Wind × Precip
PM2.5 at 6.6 µg/m³ (AQI 37) with a 0.85 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.85
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
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
- 11:26 PM
- Moonset
- 10:37 AM
- In sign
- ♓︎ Pisces
Monsoon storms drench the south
Plain City at a glance
- Today vs. normal: 5°F below the seasonal normal for this latitude
- Last frost: April 24 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Plain City
- Sat95°58°0%
- Sun99°66°0%
- Mon99°71°4%
- Tue99°71°7%
- Wed100°68°3%
- Thu96°64°0%
- Fri100°66°0%
- Sat108°69°2%
- Sun107°74°3%
- Mon104°72°5%
- Tue102°71°5%
- Wed105°72°11%
- Thu105°70°11%
- Fri104°72°14%
- Sat104°73°11%
- Sun104°71°13%
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 — Plain City
SPC includes Plain City in the general thunderstorm area day after tomorrow — no severe risk, but storms are possible.
- TODAYNONENo severe risk
- TOMORROWNONENo severe risk
- DAY 3TSTMGeneral Thunderstorms
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
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
Monsoon storms drench the south
Monsoon established in southern Mountain West (New Mexico, southern Utah, Arizona north); afternoon downpours and lightning common.
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
Plain City peaks at about 79°F in July and bottoms near 26°F in December; March brings the heaviest rain (2.5 inches) and June the least (0.6 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 26° | 2.1″ | 16 |
| February | 30° | 2.0″ | 13 |
| March | 36° | 2.5″ | 16 |
| April | 45° | 2.4″ | 17 |
| May | 57° | 2.1″ | 14 |
| June | 68° | 0.6″ | 6 |
| July | 79° | 0.6″ | 5 |
| August | 77° | 0.7″ | 5 |
| September | 66° | 1.1″ | 6 |
| October | 51° | 1.5″ | 8 |
| November | 36° | 2.2″ | 14 |
| December | 26° | 2.4″ | 18 |
Regional context
Drawing on NOAA NCEI 1991-2020 normals, Plain City's January averages 26°F and July 79°F — 53°F apart — while precipitation totals roughly 20.1 inches over some 139 days.
Cool-season fronts carry Plain City's rain: March logs 2.5 inches on 16.1 days, against June's 0.6 inches on 5.8 — winter does the heavy lifting in Plain City. That groups Plain City with places like Farr West, UT, Marriott-Slaterville, UT and South Willard, UT on the same cool-season storm track.
The cool-season window in Plain City starts at mid-April, when nights stop freezing — think kale, peas, spinach, and parsnips. In Plain City, warm-season transplants — tomatoes, peppers, basil — wait two weeks past Plain City's frost date. Plain City's window closes around mid-November as overnight lows return below freezing. In Plain City, low spots run 4-7°F colder than nearby slopes, nudging Plain City's frost dates a week.
Similar climates: Farr West, UT, Marriott-Slaterville, UT, South Willard, UT, Pleasant View, UT, Harrisville, UT.
Frequently asked
- When does it freeze in Plain City?
- In Plain City, expect the last spring frost near mid-April; Plain City's first autumn frost comes around mid-November.
- What is the rainy season in Plain City?
- March is the wettest month in Plain City, about 2.5 inches on average; the year totals roughly 20 inches.
- What is the warmest month in Plain City?
- July is Plain City's warmest month, averaging about 79°F.
- What is the coldest month in Plain City?
- Plain City bottoms out in December, with a mean near 26°F.
- When can I start a vegetable garden in Plain City?
- Plain City's last frost (mid-April) cues hardy greens; in Plain City, hold heat-lovers two weeks past.
- How many rainy days does Plain City get?
- Plain City averages about 139 days with measurable rain or snow each year.
- What hardiness zone is Plain City?
- Plain City's hardiness zone tracks its winter low; with December near 26°F, check the USDA ZIP map for the exact zone.
- What is the 10-day forecast for Plain City?
- Plain City'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 Plain City?
- See this week's day-by-day rain chances for Plain City in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Plain City?
- Current conditions for Plain City and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Plain City forecast updated?
- The Plain City forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Plain City?
- Today's sunrise and sunset times for Plain City 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 Plain City?
- The next few days in Plain City's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Plain City's cold semi-arid climate in Utah pairs 26°F Januarys with 79°F Julys, 53°F apart across the seasons.
Across the year, Plain City collects about 20 inches of precipitation over roughly 139 days with measurable rain or snow.
At 41.3°N, Plain City's 53°F summer-to-winter swing sets when Plain City's gardens wake and when frost returns.
ZIP codes in Plain City
- 84404