Episode 25 of Death Note has L and Light talking for a bit on the rooftop of the investigation headquarters. It's raining particularly hard outside, leading to the infamous foot-washing scene when they go back inside. Sometime later, Ominous Latin Chanting rears its head AGAIN as Rem kills both L and Watari. Cue an uncomfortable silence shortly filled by church bells.
In Chrono Crusade, when Rosette takes a Journey to the Center of the Mind in Azmaria's head, she's shown at a graveyard in the rain under a battered umbrella—but it's possible this is just a symbolic Shower of Angst, and isn't meant to depict an actual funeral. In the manga, a flashback to the funeral of Rosette and Joshua's parents is shown—it's snowing.
It the anime One Piece, during Zoro's flashback, it rains at Kuina's funeral.
In the SHUFFLE! anime it rains during the funeral for Kaede's mother.
In the manga Dengeki Daisy, it is stated in Chapter 11 by Kurosaki that it rained the day Teru's brother died and that it continued to rain until his funeral was over.
In Puella Magi Madoka Magica, when Sayaka's body is recovered and she is given a proper funeral in episode 11, it immediately starts raining.
In Gundam AGE, it starts raining just before Grodek Ainoa gets stabbed to death by Arabel Zoi.
In Fullmetal Alchemist Maes Hughes' funeral is accompanied by sunny weather... but not for Roy Mustang. The significance can be mentioned further, as it's been made clear before that Mustang's fire-based alchemy is useless in the rain.
It was raining so hard during the Comedian's funeral in Watchmen, the reader might get the impression that they were burying the man during a hurricane. Rorschach mentions that rain falls on the rich and poor alike.
Wesley Dodd's funeral in both Kingdom Come and The DCU proper.
At Michael Yee's funeral in Witchblade #6, it is neither raining nor snowing nor exactly sunset. Sara Pezzini complains about the uncooperative weather. She is insufficiently Genre Savvy to notice the symbolic fall colors all around her, it seems.
Parodied in the Radioactive Man comic book (and yes, that's the same Radioactive Man from The Simpsons). When RM heroically dies (for something like the fifteenth time) his friends gather to pay their last respects during what appears to be a gloomy, rain-drenched funeral. In the next panel, we pull back to see that it's actually a beautiful sunny day and everyone is standing under a large tarp to block the sun out, while the "rain" is really just the work of a guy holding a hose. Turns out RM's girlfriend Gloria hired a company to make the event as somber as possible (their slogan: "We take the 'fun' out of funerals.")
During Thomas Elliot's funeral in "Hush," there is at least a drizzle.
Played with in The Incredible Hulk: it rained at Betty Banner's funeral, but Thor showed up, swung his hammer around a bit... and stopped it raining over just the coffin.
It continuously rains throughout ''Kraven's Last Hunt", including the time Spider-Man is buried alive, when he claws his way out of his grave, and the time Kraven is buried. Only at the very end does the sun come out.
Captain America's memorial service at Arlington (following his shooting at the end of the Civil War arc) takes place in the rain.
In the film Deja Vu with Denzel Washington, it rains lightly during Claire's funeral. Justified as it is set in New Orleans, and there were concerns that the shoot in which the crew simulated rain would be interrupted by a real rain. The seasonal monsoon serendipitously delayed until immediately after shooting.
In the first Hellboy movie, it rains heavily during Professor Bruttenholm's funeral.
The Bodyguard. At the funeral of Rachel Marron's sister it rains buckets.
Contact has a different take on this; when the first astronaut is killed it's not raining at his funeral, but it's raining outside when Jodie Foster's character is watching the event on television.
Subverted in Firehouse Dog - at the celebrity funeral, it first appears to be raining, but when the ceremony is over, the camera pulls back to reveal that the rain is being faked by an FX crew.
In Amadeus, Mozart's corpse is dropped unceremoniously into a mass grave while it's raining cats and dogs. According to one Mozart scholar, the notion that it rained at Mozart's funeral is a myth. He checked out the local almanacs, and found out it was actually a bright and sunny day in Vienna.
In the movie adaption of Stephen King's It, it pours during Georgie's funeral.
In Navy Seals, it rains during William Graham's funeral.
A variation in The Rock's prologue; there's no funeral, but it's pouring when Hummel goes to visit his wife's grave, just prior to his theft of the nerve gas. He's more or less apologizing to her for what he's going to do. In that same scene though, it's played straight with the Marine Honor Guard giving a volley of gunfire for...someone.
Auden's poem about Mozart contains the lines "Had a pauper's funeral in the rain / The like of whom we shall not see again." Mozart was buried in a mass grave, but so were all non-aristocrats in 1790s Vienna. However, he could have had a proper funeral, but his wife was so shattered that she was unable to organize it and nobody else cared enough to help her.
In his book The Big Movie Glossary, Roger Ebert calls this trope "funeral weather" and notes that, when it occurs, the rain in question is rarely just a light sprinkling...rather, it's Biblical downpours.
When Dave Barry went to temples and cathedrals in Europe, he was surprised at all of the people buried in the floor. He postulates that it must've been raining at all of the funerals, so the mourners decided to bury the deceased inside to stay dry.
In Men at Arms, it rains at Cuddy's funeral near the end of the book.
Number the Stars has a variant, when it's raining the morning after the protagonist's sister dies. Her friend recalls thinking that it was like the sky was crying along with everyone else.
The Great Gatsby. It rains heavily at Jay Gatsby's already bleak and depressing funeral.
Lampshaded in Kim Newman's story "The Problem of the Final Adventure", when Moran refers to this trope. Played with in that the funeral itself is phony.
In Seanan McGuire's Velveteen Vs The Junior Super Patriots, the Back Story notes that it always rains at funerals because there are super heroes who ensure that it does, for effect.
The Book Thief: It snows heavily on little Werner's funeral. In fact, it is so cold the two gravediggers complain about having to dig through frozen ground.
Mary Jane A Novel averts this at Uncle Ben's funeral, which is said to be bright and sunny, as though it didn't realize it was supposed to be sad.
Live Action TV
In Smallville, it rains at the funeral of Whitney's father and snows at Jonathan's funeral.
However, when Lex is thought to be dead in season 3, the sun shines at his funeral.
In Fringe, a drizzily depressing funeral for Captain Lee.
It Takes a Thief (1968) episode "To Sing A Song of Murder". The episode starts with the funeral of Marilyn Lee, which takes place in a pouring rain.
Scully's father funeral on The X-Files, episode "Beyond the Sea".
Played with on NCIS in the two-part season 3 premiere "Kill Ari." During most of the episode, which takes place immediately after Kate's death, it's raining heavily, but at the end of part two when the rest of the main cast attends her actual funeral the sky is bright and sunny for the first time.
Hustle: In "Benny's Funeral", it starts raining as the gang step out of the crematorium at the eponymous funeral.
In a second-season episode of Monk ("Mr. Monk and the Very, Very Old Man"), a grave-digger remarks on the day he buried a young hit-and-run victim:
"The ground was frozen solid. It was like the earth didn't want him."
Chris Isaak's Funeral In The Rain fits this trope perfectly, as should be expected given the song's title.
Jerrica's father's funeral in the first episode of Jem
During the state funeral of Néstor Kirchner, former president of Argentina and husband to current president Cristina Fernández de Kirchner, thousands of people patiently waited under the rain in the Plaza de Mayo to pay their last respects.
Keeping with the theme of former Argentine presidents, it also rained during Raúl Alfonsín's funeral. Not only that, but on the last day of the funeral, at dawn, there was a great rainbow in Buenos Aires. Lightened the mood quite a bit.
Subverted with Pope John Paul`s funeral — which had Dramatic Wind instead.
It rained during the funeral of Archbishop Makarios, the first president of Cyprus - a highly unusual event for the island in August. Characteristically, the two ethnic groups on Cyprus had opposite views of this - the Greeks called the rain the tears of heaven, while the Turks claimed that rain attends the burial of a sinner to wash away his sins.
Former Confederate General Joseph E. Johnston caught a cold while the very rainy funeral of his late opponent, General William T. Sherman, possibly beause he refused to put on his hat: "If I were in his place and he were standing here in mine, he would not put on his hat." The cold developed into pneumonia, causing Johnston's own death a month later.
It was snowing during the funeral of Kim Jong-il. One soldier in the funeral lamented this, as he obviously wanted rain but got snow instead.
"How could the sky not cry? The people are all crying tears of blood."
Not mere rain, but a total eclipse of the sun occurred at the funeral of Norton I, the emperor of the United States.
Inverted for non-instrument-rated pilots: they're warned constantly during training that if they try to tackle weather that's beyond their skill, the funeral will be held on a sunny day.