Calvin, Oklahoma Weather
Thunderheads boil and break at dusk. Day 16 of summer. Read this microseason across nine climate regions →
Calvin weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 6Overcast——95°70°—
- TuesdayJul 7Mostly Clear——96°73°+1°
- WednesdayJul 8Clear——93°70°-3°
- ThursdayJul 9Overcast——98°77°+5°
- FridayJul 10Overcast——95°78°-3°
- SaturdayJul 11Light Drizzle17%—95°77°0°
- SundayJul 12Light Drizzle14%—95°72°0°
AQI 39 (Good), driven by PM2.5. AQI up 5 over the last 6 hours (gradual rise). PM2.5 at 12.8 µg/m³ (AQI 58) with a 0.86 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in stagnant 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 12.8 µg/m³ (AQI 58) with a 0.86 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in stagnant air, not road dust.
- PM2.5/PM10
- 0.86
- Wind
- calm
- 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).
When the stars begin to huddle, the earth will soon become a puddle.
- Moonrise
- 12:06 AM
- Moonset
- 12:44 PM
- In sign
- ♓︎ Pisces
Thunderheads boil and break at dusk
Calvin at a glance
- Today vs. normal: 7°F below the seasonal normal for this latitude
- Last frost: March 17 (climatological average for this latitude)
- Microseason: Jul 6–10
- Planting window: Sow fall broccoli and cabbage indoors for transplant in 4 weeks.
ZIP code: 74531
15-Day Forecast — Calvin
- Mon95°70°4%
- Tue96°73°3%
- Wed93°70°3%
- Thu98°77°6%
- Fri95°78°7%
- Sat95°77°17%
- Sun95°72°14%
- Mon96°73°7%
- Tue100°77°4%
- Wed105°78°2%
- Thu106°79°4%
- Fri107°80°26%
- Sat104°80°16%
- Sun89°72°14%
- Mon92°69°13%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 6, 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 — Calvin
SPC includes Calvin in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWNONENo severe risk
- DAY 3NONENo severe risk
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.
ZIP codes in Calvin
- 74531