Honestly, if you stepped outside in Paramount today, you’d be forgiven for checking your calendar twice. It is January 16, 2026, but the thermometer is acting like it’s mid-October.
We are seeing a high of 80°F today. In the middle of winter.
For a city where the "normal" January high usually hovers around a crisp 67°F, this is a significant jump. It is one of those classic Southern California shifts where the marine layer backs off and the inland heat decides to take a victory lap. If you've lived in the 90723 zip code for any length of time, you know the drill: layers are your best friend because the morning starts at 54°F, but by noon, you’re looking for shade near Paramount Park.
Breaking down the Paramount CA 90723 weather for today
Right now, the air is pretty still. We’ve got a tiny breeze coming out of the northeast at about 2 mph. It’s basically negligible. The humidity is sitting high at 71% during these early morning hours, which is why it might feel a bit damp or "heavy" before the sun really gets to work.
But don't let that morning mist fool you.
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The day is forecast to be sunny with a UV index of 3. While that's technically "moderate," if you’re out running errands at the Paramount Town Center, that winter sun can still sneak up on you. By the time tonight rolls around, things shift. We’re expecting the sky to turn cloudy with the temperature dropping back down to a low of 51°F.
There is also a tiny, almost teasing 10% chance of rain late tonight. Most likely, it’ll just be some thick cloud cover or a stray mist that doesn't even wet the pavement, but it's a stark contrast to the 80-degree peak we’re hitting during the afternoon.
The weirdness of a January heat spike
People often talk about "January Thaws," but in Paramount, it’s more like a "January Summer."
Why does this happen? Usually, it's a combination of high pressure over the Great Basin and a lack of onshore flow from the Pacific. According to historical data from the National Weather Service and long-term climate trackers like WeatherSpark, Paramount typically sees its wettest and coolest days in February. January is usually the transition.
- Typical Jan High: 67°F
- Today’s High: 80°F
- Typical Jan Low: 49°F
- Today’s Low: 51°F
Basically, our daytime peak is nearly 13 degrees above the historical average. That’s not just a "warm day"—it’s a weather anomaly that makes everyone want to fire up the grill instead of the furnace.
What to expect for the rest of the week
If you’re planning your weekend, don’t expect this heat to stick around forever. The Paramount CA 90723 weather pattern is notoriously fickle this time of year. While today is all about the sun, the cloud cover moving in tonight is a signal that the atmosphere is shifting.
Wind speeds are expected to stay low, around 3 mph from the northwest as we head into tomorrow. We aren't seeing any major "Santa Ana" wind events currently flagged, which is great news for local fire safety, but the dryness is still something to keep an eye on. When the humidity drops from 71% in the morning to around 40% in the afternoon, static electricity and dry skin start to become the local "vibe."
A quick look at the seasonal context
It’s easy to get used to this. But remember, February is usually the month when Paramount gets its real rain—averaging about 3.57 inches. We are currently in a dry spell with 0% precipitation for the daylight hours today.
If you're gardening or managing a lawn in the 90723 area, this is a "supplemental watering" kind of day. The heat will pull moisture out of the soil fast. Experts from local nurseries often suggest watering early in the morning before that 80-degree peak hits to avoid evaporation loss.
Actionable advice for Paramount residents today
Given the specific conditions today, here is how to handle the 90723 microclimate:
- The Layer Strategy: Wear a light hoodie for the 54°F morning, but make sure you have a t-shirt underneath for the 80°F afternoon. You will be peeling off layers by 1:00 PM.
- Hydration is Key: With the humidity dropping to 40% in the afternoon heat, you’ll dehydrate faster than you think for a winter day.
- Nighttime Prep: Since it'll be cloudy and 51°F tonight, keep the windows closed after sunset to trap some of that afternoon warmth inside. It’s a free way to save on the heating bill.
- Sun Protection: A UV index of 3 isn't a "burn in ten minutes" situation, but for a long walk or outdoor work, sunscreen is still a smart move in this clear Southern California light.
The 80-degree January day is a gift, even if it feels a little bit "wrong." Enjoy the clear skies while they last, because the clouds moving in tonight suggest that winter isn't quite done with us yet.