Bloomfield, Iowa Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Bloomfield weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Drizzle27%0.01″88°70°—
- SundayJul 5Light Rain15%0.10″87°71°-1°
- MondayJul 6Overcast12%—82°67°-5°
- TuesdayJul 7Overcast——82°66°0°
- WednesdayJul 8Overcast12%—86°65°+4°
- ThursdayJul 9Thunderstorm33%—82°70°-4°
- FridayJul 10Light Drizzle30%—83°68°+1°
AQI 28 (Good), driven by Ozone. AQI down 6 over the last 6 hours (gradual decline). Ozone at AQI 38 now. With UV 2.7 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 10 around 1 PM.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 10 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 38 now. With UV 2.7 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 10 around 1 PM.
- Present
- AQI 38
- UV peak
- 2.7 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 10
PM × Wind × Precip
PM2.5 at 4.7 µg/m³, PM10 at 5.1 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.92
- Wind
- breezy
- 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
- 11:05 PM
- Moonset
- 10:15 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Bloomfield at a glance
- Today vs. normal: 10°F above the seasonal normal for this latitude
- Last frost: April 20 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 52537
16-Day Forecast — Bloomfield
- Sat88°70°27%
- Sun87°71°15%
- Mon82°67°12%
- Tue82°66°1%
- Wed86°65°12%
- Thu82°70°33%
- Fri83°68°30%
- Sat86°69°9%
- Sun72°59°8%
- Mon76°57°7%
- Tue79°60°9%
- Wed80°63°11%
- Thu82°66°14%
- Fri82°67°16%
- Sat84°70°10%
- Sun86°71°18%
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 — Bloomfield
SPC has placed Bloomfield in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Isolated severe storms possible. Limited threat for hail or damaging wind.
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 scorching afternoon
Dog-day cicadas emerge in waves, their rasp dominating every sunny hour; heat peaks above 90 degrees daily.
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 Bloomfield, July runs warmest near 76°F and January coldest around 23°F, while May is the wettest month (5.5 inches) and January the driest (1.2 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 23° | 1.2″ | 3 |
| February | 28° | 1.6″ | 4 |
| March | 40° | 2.2″ | 5 |
| April | 51° | 3.7″ | 7 |
| May | 62° | 5.5″ | 9 |
| June | 72° | 5.4″ | 8 |
| July | 76° | 4.5″ | 6 |
| August | 74° | 4.7″ | 6 |
| September | 66° | 4.0″ | 6 |
| October | 54° | 2.7″ | 5 |
| November | 40° | 2.1″ | 4 |
| December | 29° | 1.5″ | 3 |
Regional context
Bloomfield's climate, from NOAA NCEI 1991-2020 station normals, pairs 23°F Januarys with 76°F Julys — a 53°F swing. About 39.1 inches of precipitation falls over roughly 66 days a year.
Summer convection drives Bloomfield's precipitation: May logs 5.5 inches on 9.3 rainy days, against January's 1.2 inches on 3.3 — warm-season storms carry Bloomfield's moisture. It is a warm-season-wet pattern Bloomfield shares with places like Drakesville, IA, Pulaski, IA and Floris, IA.
The cool-season window in Bloomfield starts at mid-April, when nights stop freezing — think kale, peas, spinach, and parsnips. In Bloomfield, warm-season transplants — tomatoes, peppers, basil — wait two weeks past Bloomfield's frost date. Around mid-November, freezing nights resume in Bloomfield and tender crops must come in. In Bloomfield, low spots run 4-7°F colder than nearby slopes, nudging Bloomfield's frost dates a week.
Similar climates: Drakesville, IA, Pulaski, IA, Floris, IA, Moulton, IA, Milton, IA.
Frequently asked
- When does it freeze in Bloomfield?
- Bloomfield's last spring frost lands near mid-April, and in Bloomfield the first fall frost follows around mid-November.
- What is the rainy season in Bloomfield?
- Bloomfield sees its heaviest rain in May (around 5.5 inches), part of roughly 39 inches a year.
- What is the warmest month in Bloomfield?
- Bloomfield peaks in July, when the mean runs near 76°F.
- What is the coldest month in Bloomfield?
- January is Bloomfield's coldest month, averaging about 23°F.
- When can I start a vegetable garden in Bloomfield?
- Hardy spring crops go in near mid-April in Bloomfield; tender peppers and squash wait 10–14 days.
- How many rainy days does Bloomfield get?
- Bloomfield averages about 66 days with measurable rain or snow each year.
- What hardiness zone is Bloomfield?
- Because Bloomfield bottoms near 23°F in January, that winter low sets Bloomfield's USDA zone — verify by ZIP.
- What is the 10-day forecast for Bloomfield?
- Bloomfield'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 Bloomfield?
- See this week's day-by-day rain chances for Bloomfield in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Bloomfield?
- Current conditions for Bloomfield and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Bloomfield forecast updated?
- The Bloomfield forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Bloomfield?
- Today's sunrise and sunset times for Bloomfield 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 Bloomfield?
- The next few days in Bloomfield's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Set in a humid subtropical zone, Bloomfield, Iowa swings from 23°F in the heart of winter to 76°F at midsummer — a 53°F arc.
Rain and snow bring Bloomfield roughly 39 inches a year across approximately 66 measurable-precipitation days.
Bloomfield's 53°F range, set by its 40.7°N position, drives frost timing and what thrives in Bloomfield.
ZIP codes in Bloomfield
- 52537