Loami, Illinois Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Loami weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Rain35%0.13″91°71°—
- SundayJul 5Overcast17%—84°72°-7°
- MondayJul 6Light Drizzle——83°68°-1°
- TuesdayJul 7Mostly Clear——81°63°-2°
- WednesdayJul 8Overcast——85°64°+4°
- ThursdayJul 9Heavy Drizzle41%0.02″85°71°0°
- FridayJul 10Heavy Drizzle41%0.04″81°71°-4°
AQI 26 (Good), driven by PM2.5. AQI down 6 over the last 6 hours (gradual decline). PM2.5 at 8.4 µg/m³, PM10 at 9.5 µg/m³ — typical background levels with no transport signature.
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 40. Overcast through the UV peak window (cloud cover ~74%) — afternoon ozone should stay flat.
- Present
- AQI 40
- UV peak
- 5.4 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 14
PM × Wind × Precip
PM2.5 at 8.4 µg/m³, PM10 at 9.5 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.88
- 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
- 10:53 PM
- Moonset
- 10:06 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Loami at a glance
- Today vs. normal: 14°F above the seasonal normal for this latitude
- Last frost: April 14 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 62661
16-Day Forecast — Loami
- Sat91°71°35%
- Sun84°72°17%
- Mon83°68°7%
- Tue81°63°4%
- Wed85°64°8%
- Thu85°71°41%
- Fri81°71°41%
- Sat83°69°22%
- Sun73°59°5%
- Mon74°57°5%
- Tue74°60°10%
- Wed79°63°10%
- Thu82°65°16%
- Fri82°67°23%
- Sat85°71°24%
- Sun84°72°23%
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 — Loami
SPC has placed Loami in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWTSTMGeneral Thunderstorms
- 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 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 Loami, July runs warmest near 78°F and January coldest around 27°F, while May is the wettest month (4.5 inches) and January the driest (1.9 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 27° | 1.9″ | 14 |
| February | 31° | 2.1″ | 12 |
| March | 42° | 3.4″ | 16 |
| April | 54° | 4.1″ | 16 |
| May | 64° | 4.5″ | 17 |
| June | 73° | 4.3″ | 15 |
| July | 78° | 2.9″ | 14 |
| August | 78° | 2.5″ | 13 |
| September | 71° | 2.9″ | 12 |
| October | 58° | 3.0″ | 11 |
| November | 43° | 3.4″ | 12 |
| December | 31° | 2.7″ | 13 |
Frequently asked
- When does it freeze in Loami?
- Frost typically leaves Loami by mid-April and returns to Loami near mid-November.
- What is the rainy season in Loami?
- Loami sees its heaviest rain in May (around 4.5 inches), part of roughly 38 inches a year.
- What is the warmest month in Loami?
- Loami peaks in July, when the mean runs near 78°F.
- What is the coldest month in Loami?
- January is Loami's coldest month, averaging about 27°F.
- When can I start a vegetable garden in Loami?
- In Loami, sow peas and hardy greens around mid-April; Loami's tomatoes and peppers wait two weeks more.
- How many rainy days does Loami get?
- Loami averages about 165 days with measurable rain or snow each year.
- What hardiness zone is Loami?
- Since January in Loami averages 27°F, Loami's USDA zone follows that floor — confirm it by ZIP.
- What is the 10-day forecast for Loami?
- Loami'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 Loami?
- See this week's day-by-day rain chances for Loami in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Loami?
- Current conditions for Loami and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Loami forecast updated?
- The Loami forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Loami?
- Today's sunrise and sunset times for Loami 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 Loami?
- The next few days in Loami's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Set in a humid subtropical zone, Loami, Illinois swings from 27°F in the heart of winter to 78°F at midsummer — a 51°F arc.
Across the year, Loami collects about 38 inches of precipitation over roughly 165 days with measurable rain or snow.
Loami's 51°F range, set by its 39.7°N position, drives frost timing and what thrives in Loami.
ZIP codes in Loami
- 62661