That would be very hard to do for El Alamein. With some luck they can sink the US carriers at Midway, not lose theirs, and invade the island. Stalingrad is doable if they focus on taking Stalingrad before moving on the Caucasus.
So if Stalingrad falls with a minimal fight in late July the Germans dig in and hold against Soviet counterattacks, but their flanks are still extended and held by weak allied powers. At Midway the US would largely have to turtle up until 1943 when replacements roll off production lines:
http://www.combinedfleet.com/economic.htm
65 carriers were completed in 1943, 18 in 1942 (most were only escort carriers, but that still adds up). Ultimately it just pushes back final victory a bit, doesn't change economic realities there. Perhaps the defeat forces a political outcry that means Operation Torch doesn't happen in 1942, because the US is forced to make up for that defeat in the Pacific to placate public fears. That's not guaranteed, but its possible.
El Alamein is the toughie, the Axis would need huge luck to pull that one off. Say the storm doesn't delay operations at 1st Alamein and the Axis forces get lucky and find a seam between the defensive boxes and they panic the British in the process:
https://en.wikipedia.org/wiki/First_Battle_of_El_Alamein#Panzer_Army_Africa_attacks
Rommel has to roll the position before he gets bogged down or the offensive is over. Let's say he does, then he likely rolls on to the next position and gets stopped there, even though its even less ready that Alamein. But say he is able to navigate that he would get to Alexandria and possibly cause the Egyptian army to revolt and attack the Brits, which would be a slaughter at that point due to how disrupted they are and fixated on Rommel, so their backs would be turned. THAT would be a disaster for the Allies and ensure that Egypt falls and the Mediterranean is shut down by August. Operation Torch in that case may not happen as the Allies rush men to the Red Sea and Middle East to avoid an Arab revolt or the Axis moving into the Middle East. The Axis were so stretched out that at that point they couldn't advance further.
It also means the British 8th army is pretty much gone and the Egyptian ports are now belonging to the Axis, while Malta is mostly strategically irrelevant and could well fall thanks to the Axis now only having to worry about supply runs for it from Gibraltar, meaning they could focus air power on the Western Mediterranean once the Egyptian naval base is gone. For all intents and purposes then the Mediterranean is an Axis lake and Cyprus likely falls due to lack of supply and the Middle East coast is likely very vulnerable to Axis landings and Arab revolts. The Jews of Palestine are probably in an absolute panic.
Shipping to do Torch might well be used for other purposes, such as supplying a much larger Middle East army command to counter the Axis, while also supplying an East African force to march up the Nile eventually and reconquer Egypt. That would all take a long time and be very expensive in terms of shipping so count out a 1942 North African landing unless they opt to forego putting more than minimal extra forces into the Middle East/East Africa.
This stuff is probably a nightmare scenario and depending on how the Wallies handle things and what a 'no Stalingrad defeat' means then Stalin might well be open to negotiate. Without Stalingrad and no Torch, then the Luftwaffe saves over 3000 aircraft that were lost in the November 1941-May 1943 period IOTL. That is a HUGE savings on top of the 700k men and their equipment lost in Stalingrad and Tunisia IOTL. Granted only about 400k of that 700k men are German, but that's huge. Not having a Sicily campaign, Italian campaign, or an Italian surrender probably mean that coupled with the savings from Stalingrad and Tunisia about 1 million Germans are saved from death, capture, wounding, or being locked down in the Mediterranean (Greece, replacing Italians in the Balkans, fighting in Tunisia/Sicily/Sardinia/Italy) and eliminating the aerial threat to Ploesti and partisan support in the Balkans/Greece/Crete.
Its hard to imagine, but this may well be the only potential chance to get a negotiated peace to end WW2 before final victory or a nuclear bombing campaign. The combination of defeats would be hard on FDR before the 1942 elections, while the loss of Egypt and resulting losses would definitely topple Churchill in a vote of no confidence. He narrowly survived that after the loss of Tobruk in 1942 IOTL.
Materially it seems silly to say the Allies would negotiate given the material preponderance of resources on their side, but war is also about morale and a series of horrible defeats and no victories as in OTL could well tip the scales to making some of the Allied nations negotiate to end the war, especially if Churchill falls. Stalin would be in a bad way if Stalingrad fell without much of a fight in July, then Operations Mars and Uranus fail, while there is then no Operation Torch in late 1942 due to shipping diversion. FDR could well get a drubbing politically that has unforeseen consequences in the mid-term elections, especially if the Pacific situation enables the Republicans to blame him for over focusing on Europe. That could well keep the Torch landings from happening in 1942 as FDR tries to look like he's doing something about the Japanese.
Certainly going into 1943 things would not be looking good for the Allies and that might undermine morale enough to get a negotiated peace, since this is long before the unconditional surrender option is floated. The anti-Hitler resistance might then get the assurances from the West about Germany getting a negotiated peace if they topple Hitler and overthrow the Nazis, which could well trigger a successful coup.