Glasgow Warriors and Edinburgh Rugby battled tough opposition and conditions to enjoy a winning start to the weekend last night and improved positions in the Guinness PRO12.Glasgow Warriors 22-7 ScarletsThe Warriors’ 22-7 win over Scarlets earned a return to the summit of the PRO12 table, with second-placed Ospreys’ hosting of Welsh rivals Dragons set to determine if it lasts the weekend.At the break, Glasgow were behind 7-5 but the hosts fought back to start the second-half in terrific fashion, scoring through full-back Peter Murchie.The Warriors then scored through DTH van der Merwe before showing their resilience to secure the four points.Seven minutes into the match Glasgow had a chance to take the lead from less than 20 metres out but the poor conditions contributed to Finn Russell skewing the kick wide of the sticks.Shortly after, the Warriors nearly scored a try when Cusack celebrated his return to the staring line-up by scrummaging well, winning the Warriors a penalty. Matawalu performed a quick tap and was on his way, dashing beyond defenders but saw his final pass agonizingly intercepted by a yellow jersey.Scarlets then had some momentum of their own and had two penalties in quick succession but, with the wild conditions, both kicks were missed.The Warriors were relentless in attack and thought they had crossed the try line but after going to the TMO, the try wasn’t given.From that decision, Glasgow built up a long period of pressure and crossed the whitewash before half an hour was on the clock when the Warriors threw the ball wide and scored through Alex Dunbar after a Sean Lamont offload.The Scarlets then ended the half on a high when Liam Williams broke through and fended off the Warriors defence to touch down.After the break though, the Warriors were a different animal and began the half with vigor, scoring through Murchie who celebrated getting married last weekend.  Russell then converted the score to put the Warriors 12-7 in front.In simply awful conditions, the Warriors refused to give in and began to break down a stout Scarlets defence.Russell launched the ball from range to add three points to Glasgow’s scoring tally. With 70 minutes on the clock, DTH van der Merwe cut through the Scarlets defence after Matawalu performed a slick offload.Russell then made no mistake in launching the ball between the sticks from a simple kick following DTH’s score under the posts.That proved to be the last score of the game as the Warriors ground out the 22-7 win ahead of next week’s penultimate European Rugby Champions Cup group game against Montpellier at Scotstoun. Connacht 13-16 Edinburgh RugbyEven for Connacht, this was a bad weather day, but Edinburgh shrugged off the howling gale and driving rain to produce a capital performance and inflict a first home defeat on the Galway men.Building on the momentum of last week’s 1872 Cup victory over Glasgow, the visitors held their nerve as the boot of Sam Hidalgo-Clyne saw a conversion and three penalties added to David Denton’s try in the 16-13 win.Glasgow’s win over Scarlets meant the Edinburgh leapfrogged the Welshmen into seventh, one place and five points behind their beaten opponents currently holding the coveted sixth-placed European qualification spot.It was never going to be a try-fest of free-flowing running rugby – storm force conditions blowing in off the Atlantic put paid to that – but a dogged, gritty, gutsy whirlwind spat out worthy winners who never, ever let up.It was the visitors who put the first points on the board, stemming from a swift tap and go from Hidalgo-Clyne which worked its way through to winger Dougie Fife and into the power-drive of Denton who ploughed across the whitewash on 16 minutes. Hidalgo-Clyne, against the wind, slotted the conversion.Nearly eight minutes later Edinburgh were pinged at the breakdown and Connacht pulled back three points with a penalty.Connacht continued to push as the clock ticked towards half time and after a try-saving tackle from Jack Cuthbert, the home side’s persistence finally paid off.As Edinburgh were penalised for trying to pull down the maul on their line, Ben Toolis was yellow carded and Connacht were awarded a penalty try, duly converted.At 13-7 down, Edinburgh ran out for the second half with renewed vigour.It wasn’t long before they rattled the visitors into conceding a penalty, then another – a superb effort from almost the halfway line from Hidalgo-Clyne – to level the scores just shy of 50 minutes.Conditions deteriorated going into the last fifteen minutes causing Dougie Fife – who chipped ahead, belted up the wing and seemed sure-fire to score until he skidded – to put the ball over a few seconds ahead of the rest of him.Edinburgh had the chance to go ahead when the home side were penalised at the breakdown and Hidalgo-Clyne lined up another long shot. The ball was sidetracked by a sudden blustery gust and the score stayed 13-all.After the Connacht prop Bealham was yellow carded for not rolling away, with 11 minutes to go, the scrum-half didn’t miss with the chance that followed, the ball sailing through the sticks, putting Edinburgh 16-13 ahead.And that’s the way it remained, despite the best efforts of the home side and prolonged final phase of play. Eventually the ball was turned over and Hidalgo-Clyne turned to the stands and kicked out to secure a memorable victory.