Saturday April 18 2026 Forecast (8:01AM)

DAYS 1-5 (APRIL 18-22)

Today, a northeasterly air flow of maritime air will keep it cool with extensive cloud cover – a stratus deck from the ocean. The leading edge of this deck, moving westward, is just reaching southwestern NH and the western reaches of the WHW forecast area in MA and eastern CT so those areas saw some early sun. Later on, the eastern limit of the cloud deck will approach the NH Seacoast and northeastern MA, with those areas potentially seeing some afternoon cloud breaks and a little sun. Patchy drizzle and light fog can occur under the deck of clouds due to the increased moisture flowing in from the ocean. Sunday’s weather will be governed by the approach of an upper trough of low pressure, pushing a warm front / cold front combo our way as surface low pressure moves into eastern Canada to our north. Showery weather is expected with this system, with the most widespread activity from midday into afternoon. The cold front may be moving quickly enough so that we start to see clearing over western areas near sunset time – at least a brightening sky to the west by the end of the day as showers end. Behind this front comes a shot of chilly air, and as upper level low pressure drifts across our region Monday, expect a gusty breeze, sun giving way to a lot of clouds and a chance of few scattered showers of mainly rain – although mixing with sleet and snow is a potential especially inland and higher elevation locations. Most of the day will just be dry, breezy, and chilly. This of course coincides with Patriots Day activities including the Boston Marathon and the Red Sox home game that starts in the late morning. High pressure builds in Monday night into Tuesday. Many areas see low temps fall to near or below freezing Tuesday morning and a modest recovery during the day under abundant late April sunshine. Wednesday, the next trough and frontal system brings back clouds with the chance of some showers.

TODAY: Mostly cloudy. Patchy fog and drizzle. Highs 47-54. Wind NE to E up to 10 MPH.

TONIGHT: Partial clearing evening, then clouding back up overnight. Lows 40-47. Wind E to SE up to 10 MPH.

SUNDAY: Mostly cloudy. Showers likely mid morning to late afternoon. Highs 51-58. Wind SE to S 5-15 MPH, shifting to W from west to east during the afternoon.

SUNDAY NIGHT: Decreasing clouds. Lows 36-43. Wind variable to NW 5-15 MPH, higher gusts overnight.

MONDAY – PATRIOTS DAY: Sun and passing clouds morning. Mostly cloudy afternoon including the chance of a rain shower that can be mixed with sleet or snow in some locations. Highs 44-51. Wind NW 5-15 MPH, gusts 20-25 MPH.

MONDAY NIGHT: Gradual clearing. Lows 28-35. Wind NW 5-15 MPH evening, diminishing overnight.

TUESDAY: Sunny to partly cloudy. Highs 52-59. Wind W up to 10 MPH.

TUESDAY NIGHT: Increasing clouds. Lows 42-49. Wind SW up to 10 MPH.

WEDNESDAY: Mostly cloudy. Chance of showers. Highs 55-62. Wind SW 5-15 MPH.

DAYS 6-10 (APRIL 23-27)

Trend for this period is for a blocking pattern to evolve with a tendency for unsettled and cool weather more dominant.

DAYS 11-15 (APRIL 28 – MAY 2)

Indications are for below normal temps and a couple wet weather chances during end-of-April to start-of-May time frame.

52 thoughts on “Saturday April 18 2026 Forecast (8:01AM)”

  1. Good Saturday morning. Thank you, TK.

    52 …Up 10 degrees from our lie.

    Happy birthday to JimmyJames and South Central!!!!!!!

  2. Wow!!!1 AMAZING 3s all!!!! I was hopeless lost and wordle did NOT like my word choices. A PHEW 6 for me and another caboose ride!!!!!

  3. Thanks TK !

    We’re sitting in the slice of sun in central NJ stopped at a Cracker Barrel off the NJ Turnpike in Mt Holly. 🙂

    About 45 miles to the Delaware Memorial Bridge, then a left hook down rte 1 thru Delaware and perhaps Maryland to cross the Chesapeake bay bridge which basically drops us off at the state park campground.

    In the moment, tough to start at 4am, but my wife is right to start at that hr.

    Have a good day everyone !

      1. Ooops. You said 1. I need to look at the map. We picked up 301 around where you are and headed down through Kent Narrows to the Bay Bridge.

        Safe travels and wishes for a special vacation week for you

    1. So you will practically be in Virginia Beach. Beautiful area.
      Try some of the waffle houses there. Amazing!!!!

  4. The clearing from the east is becoming more aggressive than expected, like it did from the north yesterday.

    Already sunny on the NH Seacoast & most of Cape Ann. Clearing line moving west southwest. I suspect there will be some redevelopment of cumulus / stratocumulus as the stratus deck clears and the sun cooks the low level moisture and sends it up into colder air. We’ll keep an eye on that as the day goes along.

    If you’re a satellite loop watcher this is a good day to do that.

    1. Sunshine returned to Woburn. Lots of clouds just to the west and south but they are drifting southwestward. I do think my sky will start to refill with some stratocumulus as we get into afternoon.

  5. Heading to Sarasota for the month of May to extend my summer. Hopefully the upcoming below temps will be gone when I get back in June. Could we have an abbreviated summer? Will the cool and damp May let up after Memorial day? What are your thoughts out there in Woodshill weather land?

    1. Transition to El Nino is often marked by a trend to above normal temps in summer. That by itself will not be the only thing acting on our longer term. There will be a couple factors in play that mitigate that effect. I figure a pretty “average” summer is ahead.

        1. No. There is no one index that is 100% one way or another. It’s always a combination.

          We’ve had warm El Nino winters, mild El Nino winters, cold El Nino winters, near normal El Nino winters.

          There are no less than a dozen major indices that govern the large scale behavior of the pattern around the globe. ENSO is but one of them.

  6. Thanks TK
    Vicki thank you for the birthday wish
    TK I am hoping you are right and it is an average summer.

    1. Caveat: Over the long haul I think temps are close to normal. This does not mean we won’t have our spells of heat, and a few cooler spells as well. Variable, but not really atypical.

    1. Down to 49 here from our lofty high of 52.
      Another lovely day here in coastal SNE! NOT!!!!!!!!!!!!!!!!!!!!!!!

  7. Very pleased with how today turned out compared to forecast. Sky condition is always tricky when you have extensive but not overwhelming maritime moisture. There was a slot of dry air that caused the clearing to the north of the city for several hours. We got into a few hours of sunshine here in Woburn before the stratus regained control, but even then there have been thin spots in it with a few hints of sun – coming after the thicker stratus to start the day with patches of drizzle.

    Temps have been exactly as expected with zero surprises. Lots of upper 40s and lower 50s – a few middle 40s over Cape Cod, and milder further west, climbing toward 60 once you get outside the WHW region. Very, very typical April weather here. 🙂

    Pretty tranquil too, just a bit of a breeze.

  8. Another trend I’m dissatisfied with…

    In reporting, over the last few seasons it’s becoming a “thing” to report the number of tornado warnings, which is typically notably higher than the number of confirmed tornadoes.

    The number of warnings makes it sound more dramatic. This is the ONLY reason this is done – I guarantee you. It’s unnecessary.

    It’s about as annoying to me as the fact that a lot of media now ignores actual temps in favor of “feels like” temps.

  9. TK – You and Weather Watcher have been saying how that most of this spring will be under a -NAO. Have we been under the influence most of the past winter? Is that why we had above normal snowfall for a change?

    Will my winter coat remain in place for much of May as well? 🙁

  10. Right after the Delaware memorial bridge, we took rte 1 south, then 113 and then 13. The first 10 miles are considered highway, then the last 150 miles, you can go 55, but it’s a double lane road each way that works its way thru Delaware, then Maryland then Virginia towns. Then you cross the Chesapeake bay tunnel bridge and we had 5 miles.

    We will watch for the waffle houses, JpDave.

    It’s in the mid 70s and the low is supposed to be 70F overnight with a high of 75F at 9am followed by a drop to the mid 50s tomorrow afternoon with scattered rain showers.

    Plenty of sun, mild Mon and Tuesday and then warm Wed thru Friday is what the tv cast has down here.

Leave a Reply to SClarke Cancel reply

Your email address will not be published. Required fields are marked *