Get ready for triple-digit temperatures this weekend. (GV Wire Composite/Paul Marshall)
- If you love triple-digit temperatures, then you'll really love this weekend's forecast for Fresno.
- Weather systems in Northern California have kept this week cooler and will bring a cooling trend next week.
- Fresno's summer looks to be very hot and dry, according to the National Weather Service.
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If you bet that Fresno would escape the month of May without seeing triple-digit temperatures, get ready to pay up.
After a couple days of 90-degree heat this week in Fresno, Friday’s high is forecast to soar to 102 degrees, and Saturday could see a scorching 105 degrees, National Weather Service meteorologist Carlos Molina said Wednesday.
That’s shy of the all-time highs set in 1910 of 109 degrees for May 30 and 110 degrees for May 31.
Friday’s high will be the first day in 2025 when the high temperature hits or exceeds the century mark.
Forecast Daytime Highs and Overnight Lows for Fresno
- Wednesday, 92 and 60
- Thursday, 93 and 66
- Friday, 102 and 71
- Saturday, 105 and 71
- Sunday, 97 and 60
- Monday, 86 and 55
- Tuesday, 81 and 55
- June 4, 84 and 58
- June 5, a high of 87.
Weather of 105 degrees or hotter is dangerously hot, and residents and workers are advised to limit their outdoor activities after noon until sunset Saturday, Molina said.
Limit Outdoor Activities When It’s Uber Hot
If you need to check out your AC system, mow the lawn, or walk the dog, best to do that in the morning hours, and the earlier the better. Extreme heat can bring on heat exhaustion, and the symptoms include drowsiness, he said.
The 105-degree mark should trigger the opening of cooling centers across the Valley, Molina said.
The hot daytime highs will also come with higher overnight temperatures that won’t drop to the low of 71 degrees until daybreak early Saturday and early Sunday, he said.
Fresno’s historical weather records, which go back to the late 1800s, record that the first day of 100-degree weather on average is June 4, Molina said. But over the past 25 years it has moved earlier on the calendar, and the average now for the first 100-degree day is about May 26.
What’s Ahead for This Summer?
Does a cool spring mean we’ll be having a torrid summer? Not necessarily, Molina said. But the below-average precipitation this winter does mean there is less humidity, and that likely will translate to hotter temperatures this summer, he said.
“Because we were running just below normal on our precipitation, we are drying out a little faster and it looks like at this point we could end up seeing a very hot, dry summer,” Molina said.
For a few days at least, Fresno will be getting the benefits of weather systems traveling through Northern California that will lower the highs back into the 80s and will drop the overnight lows back into the mid-50s next week, he said.
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